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• line 37, column 33: Two entries with the same value for atom:updated: 2024-04-10T03:27:55Z (399 occurrences) [help]

      <updated>2024-04-10T03:27:55Z</updated>
                                   ^

Source: https://leap.tardate.com/catalog/atom.xml

1. <?xml version="1.0" ?>
2. <feed xmlns="http://www.w3.org/2005/Atom" xmlns:g="http://base.google.com/ns/1.0">
3.  <title>LEAP: Little Electronic and Arduino Projects</title>
4.  <subtitle>my collection of electronics projects, many involving an Arduino in one way or another</subtitle>
5.  <link href="https://leap.tardate.com/catalog/atom.xml" rel="self"/>
6.  <link href="https://leap.tardate.com/"/>
7.  <id>https://leap.tardate.com/</id>
8.  <updated>2024-04-18T14:28:40Z</updated>
9.  <author>
10.    <name>Paul Gallagher</name>
11.    <email>gallagher.paul@gmail.com</email>
12.    <uri>https://github.com/tardate</uri>
13.  </author>
14.  <entry>
15.    <id>https://leap.tardate.com/Kraft/IJA/MitsubishiKi51/Ki51Burma/</id>
16.    <link href="https://leap.tardate.com/Kraft/IJA/MitsubishiKi51/Ki51Burma/"/>
17.    <updated>2024-04-18T14:26:42Z</updated>
18.    <title>#745 キ51 over Burma 1942</title>
19.    <summary>Building the ClearProp Ki-51 Sonia 1:144 with a motorized prop and a camo scheme as used in Burma 1942</summary>
20.    <g:image_link>https://leap.tardate.com/Kraft/IJA/MitsubishiKi51/Ki51Burma/assets/Ki51Burma_build.jpg</g:image_link>
21.    <category term="scale models"/>
22.    <category term="Craft"/>
23.  </entry>
24.  <entry>
25.    <id>https://leap.tardate.com/Kraft/IJA/KawasakiKi100/Ki100IType5/</id>
26.    <link href="https://leap.tardate.com/Kraft/IJA/KawasakiKi100/Ki100IType5/"/>
27.    <updated>2024-04-10T03:27:55Z</updated>
28.    <title>#744 Kawasaki Ki-100-I-Otsu</title>
29.    <summary>Building the キ100 from Aoshima in 1:72, mounted in flight over a watercolour scene. No electronics in this one.</summary>
30.    <g:image_link>https://leap.tardate.com/Kraft/IJA/KawasakiKi100/Ki100IType5/assets/Ki100IType5_build.jpg</g:image_link>
31.    <category term="scale models"/>
32.    <category term="Craft"/>
33.  </entry>
34.  <entry>
35.    <id>https://leap.tardate.com/Kraft/BlueStar/SouthlandStar/</id>
36.    <link href="https://leap.tardate.com/Kraft/BlueStar/SouthlandStar/"/>
37.    <updated>2024-04-10T03:27:55Z</updated>
38.    <title>#743 M.V. Southland Star</title>
39.    <summary>Blue Star Lines M.V. Southland Star transiting Cook Strait in a gale</summary>
40.    <g:image_link>https://leap.tardate.com/Kraft/BlueStar/SouthlandStar/assets/SouthlandStar_build.jpg</g:image_link>
41.    <category term="scale models"/>
42.    <category term="Craft"/>
43.  </entry>
44.  <entry>
45.    <id>https://leap.tardate.com/Kraft/MoraneSaulnier/MS230/</id>
46.    <link href="https://leap.tardate.com/Kraft/MoraneSaulnier/MS230/"/>
47.    <updated>2024-04-10T03:27:55Z</updated>
48.    <title>#742 Morane Saulnier MS.230</title>
49.    <summary>Building the Dora Wings Morane Saulnier MS.230 for the 2024 Models for Heroes 48x48 group build.</summary>
50.    <g:image_link>https://leap.tardate.com/Kraft/MoraneSaulnier/MS230/assets/MS230_build.jpg</g:image_link>
51.    <category term="scale models"/>
52.    <category term="Craft"/>
53.  </entry>
54.  <entry>
55.    <id>https://leap.tardate.com/Kraft/Gloster/Gladiator/</id>
56.    <link href="https://leap.tardate.com/Kraft/Gloster/Gladiator/"/>
57.    <updated>2024-04-10T03:27:55Z</updated>
58.    <title>#741 Gloster Gladiator</title>
59.    <summary>Building the Airfix 1:72 Gloster Gladiator Mk II over St. Inglevert, Northern France, December 1939. No electronics in this one.</summary>
60.    <g:image_link>https://leap.tardate.com/Kraft/Gloster/Gladiator/assets/Gladiator_build.jpg</g:image_link>
61.    <category term="scale models"/>
62.    <category term="Craft"/>
63.  </entry>
64.  <entry>
65.    <id>https://leap.tardate.com/Electronics101/DigitalLogic/DigitalClockKit/</id>
66.    <link href="https://leap.tardate.com/Electronics101/DigitalLogic/DigitalClockKit/"/>
67.    <updated>2024-04-10T03:27:55Z</updated>
68.    <title>#740 Digital Clock Kit</title>
69.    <summary>Build a CMOS digital logic clock kit and understand the operating principles of the circuit.</summary>
70.    <g:image_link>https://leap.tardate.com/Electronics101/DigitalLogic/DigitalClockKit/assets/DigitalClockKit_build.jpg</g:image_link>
71.    <category term="Digital Logic"/>
72.    <category term="CMOS/TTL"/>
73.  </entry>
74.  <entry>
75.    <id>https://leap.tardate.com/Kraft/RAF/Bristol/Bulldog/</id>
76.    <link href="https://leap.tardate.com/Kraft/RAF/Bristol/Bulldog/"/>
77.    <updated>2024-04-10T03:27:55Z</updated>
78.    <title>#739 Bristol Bulldog</title>
79.    <summary>The Bristol Bulldog is an RAF classic from the inter-war period. Although this Airfix Vintage Classic 2019 boxing was tooled way back in 1969, it is still a very buildable kit of a very beautiful plane.</summary>
80.    <g:image_link>https://leap.tardate.com/Kraft/RAF/Bristol/Bulldog/assets/Bulldog_build.jpg</g:image_link>
81.    <category term="scale models"/>
82.    <category term="Craft"/>
83.  </entry>
84.  <entry>
85.    <id>https://leap.tardate.com/Kraft/IJN/Tone/</id>
86.    <link href="https://leap.tardate.com/Kraft/IJN/Tone/"/>
87.    <updated>2024-04-10T03:27:55Z</updated>
88.    <title>#738 IJN Heavy Cruiser Tone 利根</title>
89.    <summary>On 23 January 1942, the IJN Heavy Cruiser Tone 利根 attacked Buka Island with its float planes. A diorama featuring the Aoshima 1:700 kit.</summary>
90.    <g:image_link>https://leap.tardate.com/Kraft/IJN/Tone/assets/Tone_build.jpg</g:image_link>
91.    <category term="scale models"/>
92.    <category term="Craft"/>
93.    <category term="IJN"/>
94.  </entry>
95.  <entry>
96.    <id>https://leap.tardate.com/playground/NTP/NtpClientDemo/</id>
97.    <link href="https://leap.tardate.com/playground/NTP/NtpClientDemo/"/>
98.    <updated>2024-04-10T03:27:55Z</updated>
99.    <title>#737 NTP Client Demo</title>
100.    <summary>Simple demonstration of NTP client requests using an Arduino Ethernet Shield</summary>
101.    <g:image_link>https://leap.tardate.com/playground/NTP/NtpClientDemo/assets/NtpClientDemo_build.jpg</g:image_link>
102.    <category term="Ethernet"/>
103.    <category term="Arduino"/>
104.  </entry>
105.  <entry>
106.    <id>https://leap.tardate.com/playground/AppleSilicon/CH340/</id>
107.    <link href="https://leap.tardate.com/playground/AppleSilicon/CH340/"/>
108.    <updated>2024-04-10T03:27:55Z</updated>
109.    <title>#736 CH340 on Apple Silicon</title>
110.    <summary>Programming over CH340-based serial interfaces (such as with some versions of the Arduino Nano) from macOS on Apple Silicon</summary>
111.    <g:image_link>https://leap.tardate.com/playground/AppleSilicon/CH340/assets/CH340_build.jpg</g:image_link>
112.    <category term="Arduino"/>
113.    <category term="AVR"/>
114.    <category term="Apple"/>
115.    <category term="macOS"/>
116.    <category term="USB"/>
117.  </entry>
118.  <entry>
119.    <id>https://leap.tardate.com/playground/AppleSilicon/</id>
120.    <link href="https://leap.tardate.com/playground/AppleSilicon/"/>
121.    <updated>2024-04-10T03:27:55Z</updated>
122.    <title>#735 Arduino on Apple Silicon</title>
123.    <summary>Using the Arduino IDE with Apple Silicon (ARM) machines</summary>
124.    <g:image_link>https://leap.tardate.com/playground/AppleSilicon/assets/AppleSilicon_build.jpg</g:image_link>
125.    <category term="Arduino"/>
126.    <category term="AVR"/>
127.    <category term="Apple"/>
128.    <category term="macOS"/>
129.  </entry>
130.  <entry>
131.    <id>https://leap.tardate.com/Equipment/Optivisor/</id>
132.    <link href="https://leap.tardate.com/Equipment/Optivisor/"/>
133.    <updated>2024-04-10T03:27:55Z</updated>
134.    <title>#734 Optivisor</title>
135.    <summary>Trying a new Optivisor for close-up work</summary>
136.    <g:image_link>https://leap.tardate.com/Equipment/Optivisor/assets/Optivisor_build.jpg</g:image_link>
137.    <category term="Tools"/>
138.  </entry>
139.  <entry>
140.    <id>https://leap.tardate.com/Equipment/DigitalOvenThermometer/</id>
141.    <link href="https://leap.tardate.com/Equipment/DigitalOvenThermometer/"/>
142.    <updated>2024-04-10T03:27:55Z</updated>
143.    <title>#733 TS-BN55 Digital Oven Thermometer</title>
144.    <summary>Examining and fixing the TS-BN55 Digital Oven Thermometer</summary>
145.    <g:image_link>https://leap.tardate.com/Equipment/DigitalOvenThermometer/assets/DigitalOvenThermometer_build.jpg</g:image_link>
146.    <category term="Tools"/>
147.  </entry>
148.  <entry>
149.    <id>https://leap.tardate.com/Electronics101/LED/FlickerKit/</id>
150.    <link href="https://leap.tardate.com/Electronics101/LED/FlickerKit/"/>
151.    <updated>2024-04-10T03:27:55Z</updated>
152.    <title>#732 LED Flicker Kit</title>
153.    <summary>A flame or fire emulator driven by an ATtiny85 suitable for use in scale models or displays</summary>
154.    <g:image_link>https://leap.tardate.com/Electronics101/LED/FlickerKit/assets/FlickerKit_build.jpg</g:image_link>
155.    <category term="Arduino"/>
156.    <category term="AVR"/>
157.    <category term="LED"/>
158.  </entry>
159.  <entry>
160.    <id>https://leap.tardate.com/Kraft/CaudronRenault/CR714/</id>
161.    <link href="https://leap.tardate.com/Kraft/CaudronRenault/CR714/"/>
162.    <updated>2024-04-10T03:27:55Z</updated>
163.    <title>#731 CR.714</title>
164.    <summary>Building the DoraWings Caudron-Renault CR.714 with a little Christmas Spirit. No electronics in this one.</summary>
165.    <g:image_link>https://leap.tardate.com/Kraft/CaudronRenault/CR714/assets/CR714_build.jpg</g:image_link>
166.    <category term="scale models"/>
167.    <category term="Craft"/>
168.  </entry>
169.  <entry>
170.    <id>https://leap.tardate.com/Kraft/ForceZ/ElectraAndExpress/</id>
171.    <link href="https://leap.tardate.com/Kraft/ForceZ/ElectraAndExpress/"/>
172.    <updated>2024-04-10T03:27:55Z</updated>
173.    <title>#730 Electra And Express To the Rescue</title>
174.    <summary>HMS Electra (H27) and HMS Express (H61) race to protect HMS Prince of Wales and HMS Repulse as a wave of G3M Nell torpedo bombers press their attack on 10 December 1941. No electronics in this one.</summary>
175.    <g:image_link>https://leap.tardate.com/Kraft/ForceZ/ElectraAndExpress/assets/ElectraAndExpress_build.jpg</g:image_link>
176.    <category term="scale models"/>
177.    <category term="Craft"/>
178.  </entry>
179.  <entry>
180.    <id>https://leap.tardate.com/Kraft/IJA/KawasakiKi10/</id>
181.    <link href="https://leap.tardate.com/Kraft/IJA/KawasakiKi10/"/>
182.    <updated>2024-04-10T03:27:55Z</updated>
183.    <title>#729 Kawasaki Ki-10</title>
184.    <summary>Building the ICM Kawasaki Ki-10. No electronics in this one.</summary>
185.    <g:image_link>https://leap.tardate.com/Kraft/IJA/KawasakiKi10/assets/KawasakiKi10_build.jpg</g:image_link>
186.    <category term="scale models"/>
187.    <category term="Craft"/>
188.  </entry>
189.  <entry>
190.    <id>https://leap.tardate.com/Kraft/RAF/Hurricane/MkI/</id>
191.    <link href="https://leap.tardate.com/Kraft/RAF/Hurricane/MkI/"/>
192.    <updated>2024-04-10T03:27:55Z</updated>
193.    <title>#728 Hurricane MkI</title>
194.    <summary>No. 501 Squadron RAF over Dover in August 1940. Depicted with the Arma Hobby 1:72 kit and a Pit-Road 1:700 wingmen. No electronics in this one.</summary>
195.    <g:image_link>https://leap.tardate.com/Kraft/RAF/Hurricane/MkI/assets/MkI_build.jpg</g:image_link>
196.    <category term="scale models"/>
197.    <category term="Craft"/>
198.  </entry>
199.  <entry>
200.    <id>https://leap.tardate.com/Kraft/IJA/NakajimaKi43-II/</id>
201.    <link href="https://leap.tardate.com/Kraft/IJA/NakajimaKi43-II/"/>
202.    <updated>2024-04-10T03:27:55Z</updated>
203.    <title>#727 Nakajima Ki43-II</title>
204.    <summary>Nakajima Ki-43 Hayabusa (隼), doing what peregrine falcons do best. the Hasegawa 1:72 kit paired with a Pit-Road B-17, pictures somewhere over New Guinea in 1943.</summary>
205.    <g:image_link>https://leap.tardate.com/Kraft/IJA/NakajimaKi43-II/assets/NakajimaKi43-II_build.jpg</g:image_link>
206.    <category term="scale models"/>
207.    <category term="Craft"/>
208.  </entry>
209.  <entry>
210.    <id>https://leap.tardate.com/Kraft/deHavilland/Beaver/</id>
211.    <link href="https://leap.tardate.com/Kraft/deHavilland/Beaver/"/>
212.    <updated>2024-04-10T03:27:55Z</updated>
213.    <title>#726 DHC Beaver</title>
214.    <summary>Building the de Havilland Canada DHC-2 Beaver in-flight and motorized, based on the Airfix Vintage Classics kit A03017V.</summary>
215.    <g:image_link>https://leap.tardate.com/Kraft/deHavilland/Beaver/assets/Beaver_build.jpg</g:image_link>
216.    <category term="scale models"/>
217.    <category term="Craft"/>
218.    <category term="motor"/>
219.  </entry>
220.  <entry>
221.    <id>https://leap.tardate.com/Kraft/IJA/NakajimaKi27/</id>
222.    <link href="https://leap.tardate.com/Kraft/IJA/NakajimaKi27/"/>
223.    <updated>2024-04-10T03:27:55Z</updated>
224.    <title>#725 Nakajima Ki-27</title>
225.    <summary>Building the ICM Nakajima Ki-27a kit in 1:72 scale (no electronics in this one)</summary>
226.    <g:image_link>https://leap.tardate.com/Kraft/IJA/NakajimaKi27/assets/NakajimaKi27_build.jpg</g:image_link>
227.    <category term="scale models"/>
228.    <category term="Craft"/>
229.  </entry>
230.  <entry>
231.    <id>https://leap.tardate.com/Kraft/YANMAR/YH6115/</id>
232.    <link href="https://leap.tardate.com/Kraft/YANMAR/YH6115/"/>
233.    <updated>2024-04-10T03:27:55Z</updated>
234.    <title>#724 YANMAR Rice Harvester YH6115 オートコンバイン</title>
235.    <summary>Building the Hasegawa 1:35 kit of the YANMAR YH6115 Rice Harvester, and spending a lot of time watching youtube videos of the machine while *planting rice* in a dio! (no electronics in this one)</summary>
236.    <g:image_link>https://leap.tardate.com/Kraft/YANMAR/YH6115/assets/YH6115_build.jpg</g:image_link>
237.    <category term="scale models"/>
238.    <category term="Craft"/>
239.  </entry>
240.  <entry>
241.    <id>https://leap.tardate.com/Kraft/Honda/SuperCub/</id>
242.    <link href="https://leap.tardate.com/Kraft/Honda/SuperCub/"/>
243.    <updated>2024-04-10T03:27:55Z</updated>
244.    <title>#723 Honda Super Cub</title>
245.    <summary>Building the F-Toys Honda Super Cub in 1:24</summary>
246.    <g:image_link>https://leap.tardate.com/Kraft/Honda/SuperCub/assets/SuperCub_build.jpg</g:image_link>
247.    <category term="scale models"/>
248.    <category term="Craft"/>
249.  </entry>
250.  <entry>
251.    <id>https://leap.tardate.com/Kraft/IJN/MitsubishiA6M/A6M2N/FtoysFC54/</id>
252.    <link href="https://leap.tardate.com/Kraft/IJN/MitsubishiA6M/A6M2N/FtoysFC54/"/>
253.    <updated>2024-04-10T03:27:55Z</updated>
254.    <title>#722 Mitsubishi A6M2-N</title>
255.    <summary>Building the F-Toys Mitsubishi A6M2-N from their 1/144 WORK SHOP Vol.40</summary>
256.    <g:image_link>https://leap.tardate.com/Kraft/IJN/MitsubishiA6M/A6M2N/FtoysFC54/assets/FtoysFC54_build.jpg</g:image_link>
257.    <category term="scale models"/>
258.    <category term="Craft"/>
259.  </entry>
260.  <entry>
261.    <id>https://leap.tardate.com/Kraft/IJA/KawasakiKi61/Ki61II/</id>
262.    <link href="https://leap.tardate.com/Kraft/IJA/KawasakiKi61/Ki61II/"/>
263.    <updated>2024-04-10T03:27:55Z</updated>
264.    <title>#721 Kawasaki Ki-61-II</title>
265.    <summary>Building the F-Toys Ki-61-II from Wing Kit Collection 18 in 1:144</summary>
266.    <g:image_link>https://leap.tardate.com/Kraft/IJA/KawasakiKi61/Ki61II/assets/Ki61II_build.jpg</g:image_link>
267.    <category term="scale models"/>
268.    <category term="Craft"/>
269.  </entry>
270.  <entry>
271.    <id>https://leap.tardate.com/Kraft/HIDF/TwinOtter/</id>
272.    <link href="https://leap.tardate.com/Kraft/HIDF/TwinOtter/"/>
273.    <updated>2024-04-10T03:27:55Z</updated>
274.    <title>#720 HIDF Twin Otter Recon/SpecOps</title>
275.    <summary>DHC-6 Twin Otter from Revell (04901 in 1:72), as seen commandeered by HIDF Gendarmerie and pressed into service as a reconnaissance and special ops platform. For the Micro Machines Podcast HIDF GB.</summary>
276.    <g:image_link>https://leap.tardate.com/Kraft/HIDF/TwinOtter/assets/TwinOtter_build.jpg</g:image_link>
277.    <category term="scale models"/>
278.    <category term="Craft"/>
279.    <category term="LED"/>
280.    <category term="555 Timer"/>
281.    <category term="motor"/>
282.    <category term="Oscillators"/>
283.  </entry>
284.  <entry>
285.    <id>https://leap.tardate.com/Electronics101/LED/Dimmer/VCO/</id>
286.    <link href="https://leap.tardate.com/Electronics101/LED/Dimmer/VCO/"/>
287.    <updated>2024-04-10T03:27:55Z</updated>
288.    <title>#719 Voltage Controlled LED Dimmer</title>
289.    <summary>Demonstrating a voltage-controlled LED current source with a triangle wave generator.</summary>
290.    <g:image_link>https://leap.tardate.com/Electronics101/LED/Dimmer/VCO/assets/VCO_build.jpg</g:image_link>
291.    <category term="LED"/>
292.    <category term="Oscillators"/>
293.  </entry>
294.  <entry>
295.    <id>https://leap.tardate.com/Kraft/DefiantMkIvDo17z/</id>
296.    <link href="https://leap.tardate.com/Kraft/DefiantMkIvDo17z/"/>
297.    <updated>2024-04-10T03:27:55Z</updated>
298.    <title>#718 Defiant v Do-17z</title>
299.    <summary>Aces High! A Boulton Paul Defiant Mk.I bringing down a Dornier Do-17z 'flying pencil', built with the Airfix 1:72 kits from 2014. No electronics.</summary>
300.    <g:image_link>https://leap.tardate.com/Kraft/DefiantMkIvDo17z/assets/DefiantMkIvDo17z_build.jpg</g:image_link>
301.    <category term="scale models"/>
302.    <category term="Craft"/>
303.  </entry>
304.  <entry>
305.    <id>https://leap.tardate.com/Kraft/Ukraine/Fencer/</id>
306.    <link href="https://leap.tardate.com/Kraft/Ukraine/Fencer/"/>
307.    <updated>2024-04-10T03:27:55Z</updated>
308.    <title>#717 Ukrainian Su-24M Fencer</title>
309.    <summary>Building the Armory 1:144 representation of the Ukrainian Su-24M Fencer. No electronics in this one.</summary>
310.    <g:image_link>https://leap.tardate.com/Kraft/Ukraine/Fencer/assets/Fencer_build.jpg</g:image_link>
311.    <category term="scale models"/>
312.    <category term="Craft"/>
313.  </entry>
314.  <entry>
315.    <id>https://leap.tardate.com/Kraft/IJN/MilitaryTransports/</id>
316.    <link href="https://leap.tardate.com/Kraft/IJN/MilitaryTransports/"/>
317.    <updated>2024-04-10T03:27:55Z</updated>
318.    <title>#716 IJN Military Transports</title>
319.    <summary>Building the No.1 and No.101 landing ships 輸送艦 from the Tamiya Military Transport set. No electronics or base for this - saving for a future diorama.</summary>
320.    <g:image_link>https://leap.tardate.com/Kraft/IJN/MilitaryTransports/assets/MilitaryTransports_build.jpg</g:image_link>
321.    <category term="scale models"/>
322.    <category term="Craft"/>
323.    <category term="IJN"/>
324.    <category term="IJA"/>
325.  </entry>
326.  <entry>
327.    <id>https://leap.tardate.com/Kraft/TarpChallenge/SnowyFindsARide/</id>
328.    <link href="https://leap.tardate.com/Kraft/TarpChallenge/SnowyFindsARide/"/>
329.    <updated>2024-04-10T03:27:55Z</updated>
330.    <title>#715 Snowy Finds a Ride</title>
331.    <summary>My Hergé fanfic for the @justmakingconversation Great Tarp Build featuring the Dora Wings Percival Proctor &amp; Vega Gull in 1:72 (no electronics in this one)</summary>
332.    <g:image_link>https://leap.tardate.com/Kraft/TarpChallenge/SnowyFindsARide/assets/SnowyFindsARide_build.jpg</g:image_link>
333.    <category term="scale models"/>
334.    <category term="Craft"/>
335.  </entry>
336.  <entry>
337.    <id>https://leap.tardate.com/Kraft/Ukraine/USV/</id>
338.    <link href="https://leap.tardate.com/Kraft/Ukraine/USV/"/>
339.    <updated>2024-04-10T03:27:55Z</updated>
340.    <title>#714 Ukraine's Maritime Drone (USV)</title>
341.    <summary>Building the MikroMir 1:35 kit. No electronics in this one.</summary>
342.    <g:image_link>https://leap.tardate.com/Kraft/Ukraine/USV/assets/USV_build.jpg</g:image_link>
343.    <category term="scale models"/>
344.    <category term="Craft"/>
345.  </entry>
346.  <entry>
347.    <id>https://leap.tardate.com/Kraft/Dauphin2/</id>
348.    <link href="https://leap.tardate.com/Kraft/Dauphin2/"/>
349.    <updated>2024-04-10T03:27:55Z</updated>
350.    <title>#713 Aérospatiale SA365N Dauphin 2</title>
351.    <summary>Building the Aérospatiale SA365N Dauphin 2 as used by the Tokyo Metropolitan Police Department. Trumpeter 1:48 kit, no electronics.</summary>
352.    <g:image_link>https://leap.tardate.com/Kraft/Dauphin2/assets/Dauphin2_build.jpg</g:image_link>
353.    <category term="scale models"/>
354.    <category term="Craft"/>
355.  </entry>
356.  <entry>
357.    <id>https://leap.tardate.com/Kraft/IJA/Type89IGoOtsu/</id>
358.    <link href="https://leap.tardate.com/Kraft/IJA/Type89IGoOtsu/"/>
359.    <updated>2024-04-10T03:27:55Z</updated>
360.    <title>#712 IJA Type 89 I-Go Otsu Medium Tank</title>
361.    <summary>Building the IBG Models 1:72 representation of the IJA Type 89 I-Go Otsu Medium Tank. No electronics in this one.</summary>
362.    <g:image_link>https://leap.tardate.com/Kraft/IJA/Type89IGoOtsu/assets/Type89IGoOtsu_build.jpg</g:image_link>
363.    <category term="scale models"/>
364.    <category term="Craft"/>
365.  </entry>
366.  <entry>
367.    <id>https://leap.tardate.com/Kraft/JSDF/F-4EJ/</id>
368.    <link href="https://leap.tardate.com/Kraft/JSDF/F-4EJ/"/>
369.    <updated>2024-04-10T03:27:55Z</updated>
370.    <title>#711 F-4EJ Last Phantom</title>
371.    <summary>Building the 2019 commemorative scheme of the JASDF F-4EJ Kai Phantom II - a beautiful little Platz 1:144 kit. No electronics in this one.</summary>
372.    <g:image_link>https://leap.tardate.com/Kraft/JSDF/F-4EJ/assets/F-4EJ_build.jpg</g:image_link>
373.    <category term="scale models"/>
374.    <category term="Craft"/>
375.  </entry>
376.  <entry>
377.    <id>https://leap.tardate.com/Kraft/RaceToJitra/</id>
378.    <link href="https://leap.tardate.com/Kraft/RaceToJitra/"/>
379.    <updated>2024-04-10T03:27:55Z</updated>
380.    <title>#710 Race To Jitra</title>
381.    <summary>Building a double-sided box diorama in mixed scales to capture the rapid advance of Japanese forces during the Invasion of Malaya. The Battle of Jitra was one of many engagements where the advancing force overwhelmed the under-prepared defenders on the peninsula.</summary>
382.    <g:image_link>https://leap.tardate.com/Kraft/RaceToJitra/assets/RaceToJitra_build.jpg</g:image_link>
383.    <category term="scale models"/>
384.    <category term="Craft"/>
385.    <category term="LED"/>
386.  </entry>
387.  <entry>
388.    <id>https://leap.tardate.com/Kraft/IJA/Type95HaGo/</id>
389.    <link href="https://leap.tardate.com/Kraft/IJA/Type95HaGo/"/>
390.    <updated>2024-04-10T03:27:55Z</updated>
391.    <title>#709 IJA Type 95 Ha-Go Light Tank</title>
392.    <summary>Building the IBG Models 1:72 representation of the IJA Type 95 Ha-Gō ハ号 Light Tank. No electronics in this one.</summary>
393.    <g:image_link>https://leap.tardate.com/Kraft/IJA/Type95HaGo/assets/Type95HaGo_build.jpg</g:image_link>
394.    <category term="scale models"/>
395.    <category term="Craft"/>
396.  </entry>
397.  <entry>
398.    <id>https://leap.tardate.com/Kraft/PLA/T34-85/</id>
399.    <link href="https://leap.tardate.com/Kraft/PLA/T34-85/"/>
400.    <updated>2024-04-10T03:27:55Z</updated>
401.    <title>#708 The Legendary T-34/85 215号</title>
402.    <summary>Capturing the legendary T-34/85 215号 in action, using the Rye Field Model kit RM-5059 in 1:35 and some great resin figures from YUFAN Model. No electronics in this one.</summary>
403.    <g:image_link>https://leap.tardate.com/Kraft/PLA/T34-85/assets/T34-85_build.jpg</g:image_link>
404.    <category term="scale models"/>
405.    <category term="Craft"/>
406.  </entry>
407.  <entry>
408.    <id>https://leap.tardate.com/Kraft/BayraktarTB2/</id>
409.    <link href="https://leap.tardate.com/Kraft/BayraktarTB2/"/>
410.    <updated>2024-04-10T03:27:55Z</updated>
411.    <title>#707 Bayraktar TB2</title>
412.    <summary>Building the Clear Prop! 1:48 representation of the now iconic Bayraktar TB2 as used by the Armed Forces of Ukraine</summary>
413.    <g:image_link>https://leap.tardate.com/Kraft/BayraktarTB2/assets/BayraktarTB2_build.jpg</g:image_link>
414.    <category term="scale models"/>
415.    <category term="Craft"/>
416.  </entry>
417.  <entry>
418.    <id>https://leap.tardate.com/Kraft/IJN/Ayanami/</id>
419.    <link href="https://leap.tardate.com/Kraft/IJN/Ayanami/"/>
420.    <updated>2023-05-02T14:10:53Z</updated>
421.    <title>#706 IJN Destroyer Ayanami</title>
422.    <summary>Building the Tamiya 1:700 representation of the IJN Destroyer Ayanami 綾波</summary>
423.    <g:image_link>https://leap.tardate.com/Kraft/IJN/Ayanami/assets/Ayanami_build.jpg</g:image_link>
424.    <category term="scale models"/>
425.    <category term="Craft"/>
426.    <category term="IJN"/>
427.  </entry>
428.  <entry>
429.    <id>https://leap.tardate.com/Kraft/IJA/NakajimaKi84/</id>
430.    <link href="https://leap.tardate.com/Kraft/IJA/NakajimaKi84/"/>
431.    <updated>2023-05-02T14:10:53Z</updated>
432.    <title>#705 Nakajima Ki84</title>
433.    <summary>Building the Arma Hobby 1:72 representation of the Nakajima Ki-84 Hayate (キ84 疾風)</summary>
434.    <g:image_link>https://leap.tardate.com/Kraft/IJA/NakajimaKi84/assets/NakajimaKi84_build.jpg</g:image_link>
435.    <category term="scale models"/>
436.    <category term="Craft"/>
437.  </entry>
438.  <entry>
439.    <id>https://leap.tardate.com/Kraft/IJN/Hashidate/</id>
440.    <link href="https://leap.tardate.com/Kraft/IJN/Hashidate/"/>
441.    <updated>2023-05-02T14:10:53Z</updated>
442.    <title>#704 IJN Hashidate</title>
443.    <summary>Building the Tamiya 1:700 kit of the IJN Gunboat Hashidate 橋立</summary>
444.    <g:image_link>https://leap.tardate.com/Kraft/IJN/Hashidate/assets/Hashidate_build.jpg</g:image_link>
445.    <category term="scale models"/>
446.    <category term="Craft"/>
447.    <category term="IJN"/>
448.  </entry>
449.  <entry>
450.    <id>https://leap.tardate.com/Kraft/IJN/MitsubishiA6M/Sweet14110/</id>
451.    <link href="https://leap.tardate.com/Kraft/IJN/MitsubishiA6M/Sweet14110/"/>
452.    <updated>2024-04-10T03:27:55Z</updated>
453.    <title>#703 Mitsubishi A6M Zero on the Zuikaku</title>
454.    <summary>Building the amazing little Sweet 1:144 kit of the Zero with Flight Deck</summary>
455.    <g:image_link>https://leap.tardate.com/Kraft/IJN/MitsubishiA6M/Sweet14110/assets/Sweet14110_build.jpg</g:image_link>
456.    <category term="scale models"/>
457.    <category term="Craft"/>
458.  </entry>
459.  <entry>
460.    <id>https://leap.tardate.com/Kraft/BritishArmy/Tilly10HP/</id>
461.    <link href="https://leap.tardate.com/Kraft/BritishArmy/Tilly10HP/"/>
462.    <updated>2023-05-02T14:10:52Z</updated>
463.    <title>#702 Austin Tilly 10HP</title>
464.    <summary>Buidling a fantastic little 1:72 Austin Tilly 10hp from ACE Models of Ukraine. No electronics in this one - just a quick weekend build.</summary>
465.    <g:image_link>https://leap.tardate.com/Kraft/BritishArmy/Tilly10HP/assets/Tilly10HP_build.jpg</g:image_link>
466.    <category term="scale models"/>
467.    <category term="Craft"/>
468.  </entry>
469.  <entry>
470.    <id>https://leap.tardate.com/Kraft/IJA/NakajimaKi84/EggScale/</id>
471.    <link href="https://leap.tardate.com/Kraft/IJA/NakajimaKi84/EggScale/"/>
472.    <updated>2023-05-02T14:10:53Z</updated>
473.    <title>#701 Nakajima Ki-84 Egg-Scale</title>
474.    <summary>An egg-scale warm up before I move on to the Arma Hobby Ki-84 Hayate</summary>
475.    <g:image_link>https://leap.tardate.com/Kraft/IJA/NakajimaKi84/EggScale/assets/EggScale_build.jpg</g:image_link>
476.    <category term="scale models"/>
477.    <category term="Craft"/>
478.  </entry>
479.  <entry>
480.    <id>https://leap.tardate.com/Audio/LaserHarpKit/</id>
481.    <link href="https://leap.tardate.com/Audio/LaserHarpKit/"/>
482.    <updated>2023-05-02T14:10:51Z</updated>
483.    <title>#700 Laser Harp Kit</title>
484.    <summary>Build and test an 8051-based laser harp kit</summary>
485.    <g:image_link>https://leap.tardate.com/Audio/LaserHarpKit/assets/LaserHarpKit_build.jpg</g:image_link>
486.    <category term="Audio"/>
487.    <category term="Laser"/>
488.    <category term="LED"/>
489.    <category term="8051"/>
490.  </entry>
491.  <entry>
492.    <id>https://leap.tardate.com/Kraft/Gloster/PioneerE.28-39/</id>
493.    <link href="https://leap.tardate.com/Kraft/Gloster/PioneerE.28-39/"/>
494.    <updated>2023-05-02T14:10:53Z</updated>
495.    <title>#699 Gloster Pioneer E.28-39</title>
496.    <summary>Building the Gloster Pioneer E.28-39 from Clear Prop models of Ukraine</summary>
497.    <g:image_link>https://leap.tardate.com/Kraft/Gloster/PioneerE.28-39/assets/PioneerE.28-39_build.jpg</g:image_link>
498.    <category term="scale models"/>
499.    <category term="Craft"/>
500.  </entry>
501.  <entry>
502.    <id>https://leap.tardate.com/Kraft/Bellanca/Pacemaker/</id>
503.    <link href="https://leap.tardate.com/Kraft/Bellanca/Pacemaker/"/>
504.    <updated>2023-05-02T14:10:52Z</updated>
505.    <title>#698 Bellanca CH-300 Pacemaker</title>
506.    <summary>Building the Dora Wings kit of the Bellanca CH-300 Pacemaker with an appropriately? kitsch presentation: Inter Island Airways livery over the beaches of Hawaii.</summary>
507.    <g:image_link>https://leap.tardate.com/Kraft/Bellanca/Pacemaker/assets/Pacemaker_build.jpg</g:image_link>
508.    <category term="scale models"/>
509.    <category term="Craft"/>
510.  </entry>
511.  <entry>
512.    <id>https://leap.tardate.com/Kraft/IJN/MitsubishiA5M2b/</id>
513.    <link href="https://leap.tardate.com/Kraft/IJN/MitsubishiA5M2b/"/>
514.    <updated>2023-05-02T14:10:53Z</updated>
515.    <title>#697 Mitsubishi A5M2b</title>
516.    <summary>Building the Wingsy Kits A5M2b in-flight for the 2023 Model Officers Mess birthday bash raising money and awareness for the Models for Heroes charity.</summary>
517.    <g:image_link>https://leap.tardate.com/Kraft/IJN/MitsubishiA5M2b/assets/MitsubishiA5M2b_build.jpg</g:image_link>
518.    <category term="AVR"/>
519.    <category term="LED"/>
520.    <category term="scale models"/>
521.    <category term="Craft"/>
522.  </entry>
523.  <entry>
524.    <id>https://leap.tardate.com/playground/ATtiny/FlickeringFireEffect/</id>
525.    <link href="https://leap.tardate.com/playground/ATtiny/FlickeringFireEffect/"/>
526.    <updated>2023-05-02T14:10:59Z</updated>
527.    <title>#696 Flickering Fire Effect</title>
528.    <summary>A flickering fire effect with 3 LEDs and adjustable brightness controlled by an ATtiny85</summary>
529.    <g:image_link>https://leap.tardate.com/playground/ATtiny/FlickeringFireEffect/assets/FlickeringFireEffect_build.jpg</g:image_link>
530.    <category term="LED"/>
531.    <category term="Arduino"/>
532.    <category term="AVR"/>
533.  </entry>
534.  <entry>
535.    <id>https://leap.tardate.com/playground/ATtiny/PwmMotorControl/</id>
536.    <link href="https://leap.tardate.com/playground/ATtiny/PwmMotorControl/"/>
537.    <updated>2023-05-02T14:10:59Z</updated>
538.    <title>#695 ATtiny PMW Motor Control</title>
539.    <summary>Variable speed PWM motor control with an ATtiny85</summary>
540.    <g:image_link>https://leap.tardate.com/playground/ATtiny/PwmMotorControl/assets/PwmMotorControl_build.jpg</g:image_link>
541.    <category term="Motors"/>
542.    <category term="Arduino"/>
543.    <category term="AVR"/>
544.  </entry>
545.  <entry>
546.    <id>https://leap.tardate.com/Kraft/WalnutChallenge/TeddyBearViking/</id>
547.    <link href="https://leap.tardate.com/Kraft/WalnutChallenge/TeddyBearViking/"/>
548.    <updated>2023-05-02T14:10:58Z</updated>
549.    <title>#694 Teddy Bear Viking</title>
550.    <summary>If you go down in the woods today, you're sure of a big surprise ... a Teddy Bear Viking in a Walnut!</summary>
551.    <g:image_link>https://leap.tardate.com/Kraft/WalnutChallenge/TeddyBearViking/assets/TeddyBearViking_build.jpg</g:image_link>
552.    <category term="LED"/>
553.    <category term="scale models"/>
554.    <category term="Craft"/>
555.  </entry>
556.  <entry>
557.    <id>https://leap.tardate.com/Kraft/PorcoRosso/</id>
558.    <link href="https://leap.tardate.com/Kraft/PorcoRosso/"/>
559.    <updated>2023-05-02T14:10:55Z</updated>
560.    <title>#693 Porco Rosso</title>
561.    <summary>Revisiting one of my favourite films after so many years thanks to a wonderful 1:72 kit of the Porco Rosso Savoia S.21 from Fine Molds</summary>
562.    <g:image_link>https://leap.tardate.com/Kraft/PorcoRosso/assets/PorcoRosso_build.jpg</g:image_link>
563.    <category term="scale models"/>
564.    <category term="Craft"/>
565.    <category term="555 Timer"/>
566.    <category term="motor"/>
567.  </entry>
568.  <entry>
569.    <id>https://leap.tardate.com/Electronics101/555Timer/Latch/</id>
570.    <link href="https://leap.tardate.com/Electronics101/555Timer/Latch/"/>
571.    <updated>2023-05-02T14:10:51Z</updated>
572.    <title>#692 Push-button Latch</title>
573.    <summary>Testing a simple push-button latched switch circuit for on/off control using the 555 timer</summary>
574.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/Latch/assets/Latch_build.jpg</g:image_link>
575.    <category term="555 Timer"/>
576.  </entry>
577.  <entry>
578.    <id>https://leap.tardate.com/Equipment/CH2PC4/</id>
579.    <link href="https://leap.tardate.com/Equipment/CH2PC4/"/>
580.    <updated>2023-05-02T14:10:52Z</updated>
581.    <title>#691 CH2PC4 NiMH Charger</title>
582.    <summary>A few quick notes on the Energizer NiMH charger CH2PC4</summary>
583.    <g:image_link>https://leap.tardate.com/Equipment/CH2PC4/assets/CH2PC4_build.jpg</g:image_link>
584.    <category term="Power"/>
585.  </entry>
586.  <entry>
587.    <id>https://leap.tardate.com/Kraft/RAF/Mosquito/</id>
588.    <link href="https://leap.tardate.com/Kraft/RAF/Mosquito/"/>
589.    <updated>2023-05-02T14:10:55Z</updated>
590.    <title>#690 de Havilland Mosquito B Mk.XVI</title>
591.    <summary>Building the Airfix de Havilland Mosquito B Mk.XVI (no electronics)</summary>
592.    <g:image_link>https://leap.tardate.com/Kraft/RAF/Mosquito/assets/Mosquito_build.jpg</g:image_link>
593.    <category term="scale models"/>
594.    <category term="Craft"/>
595.  </entry>
596.  <entry>
597.    <id>https://leap.tardate.com/Electronics101/Oscillators/ProgrammableFrequencyReference/</id>
598.    <link href="https://leap.tardate.com/Electronics101/Oscillators/ProgrammableFrequencyReference/"/>
599.    <updated>2023-05-02T14:10:52Z</updated>
600.    <title>#689 Programmable Frequency Reference</title>
601.    <summary>Build and test a programmable frequency reference capable of dialing in 4095 discrete frequencies between 488Hz and 1MHz</summary>
602.    <g:image_link>https://leap.tardate.com/Electronics101/Oscillators/ProgrammableFrequencyReference/assets/ProgrammableFrequencyReference_build.jpg</g:image_link>
603.    <category term="CMOS/TTL"/>
604.    <category term="Oscillators"/>
605.  </entry>
606.  <entry>
607.    <id>https://leap.tardate.com/Electronics101/Oscillators/CrystalLocked4MHzCD4001/</id>
608.    <link href="https://leap.tardate.com/Electronics101/Oscillators/CrystalLocked4MHzCD4001/"/>
609.    <updated>2023-05-02T14:10:52Z</updated>
610.    <title>#688 Crystal-locked 4MHz Oscillator</title>
611.    <summary>Testing a 4MHz crystal-locked Pierce oscillator using CD4001 CMOS NOR gates</summary>
612.    <g:image_link>https://leap.tardate.com/Electronics101/Oscillators/CrystalLocked4MHzCD4001/assets/CrystalLocked4MHzCD4001_build.jpg</g:image_link>
613.    <category term="CMOS/TTL"/>
614.    <category term="Oscillators"/>
615.  </entry>
616.  <entry>
617.    <id>https://leap.tardate.com/Electronics101/Oscillators/CrystalLocked455kHzCD4001/</id>
618.    <link href="https://leap.tardate.com/Electronics101/Oscillators/CrystalLocked455kHzCD4001/"/>
619.    <updated>2023-05-02T14:10:52Z</updated>
620.    <title>#687 Crystal-locked 455kHz Oscillator</title>
621.    <summary>Testing a 455kHz crystal-locked Pierce oscillator using CD4001 CMOS NOR gates</summary>
622.    <g:image_link>https://leap.tardate.com/Electronics101/Oscillators/CrystalLocked455kHzCD4001/assets/CrystalLocked455kHzCD4001_build.jpg</g:image_link>
623.    <category term="CMOS/TTL"/>
624.    <category term="Oscillators"/>
625.  </entry>
626.  <entry>
627.    <id>https://leap.tardate.com/Kraft/UNCFDreadnought/</id>
628.    <link href="https://leap.tardate.com/Kraft/UNCFDreadnought/"/>
629.    <updated>2023-05-02T14:10:57Z</updated>
630.    <title>#686 U.N.C.F. Dreadnoughts</title>
631.    <summary>Electrifying a pair of Bandai Spirits Dreadnought-class battleships with LED effect and fibre optics</summary>
632.    <g:image_link>https://leap.tardate.com/Kraft/UNCFDreadnought/assets/UNCFDreadnought_build.jpg</g:image_link>
633.    <category term="LED"/>
634.    <category term="scale models"/>
635.    <category term="Craft"/>
636.  </entry>
637.  <entry>
638.    <id>https://leap.tardate.com/Kraft/RAF/Mosquito/MozzieBite/</id>
639.    <link href="https://leap.tardate.com/Kraft/RAF/Mosquito/MozzieBite/"/>
640.    <updated>2023-05-02T14:10:55Z</updated>
641.    <title>#685 Mozzie Bite!</title>
642.    <summary>A little 1:700 diorama in an epoxy resin paper-weight featuring Pit-Road Mosquito and Tiger I models (no electronics).</summary>
643.    <g:image_link>https://leap.tardate.com/Kraft/RAF/Mosquito/MozzieBite/assets/MozzieBite_build.jpg</g:image_link>
644.    <category term="scale models"/>
645.    <category term="Craft"/>
646.  </entry>
647.  <entry>
648.    <id>https://leap.tardate.com/Kraft/Westland/WhirlwindHAS22/</id>
649.    <link href="https://leap.tardate.com/Kraft/Westland/WhirlwindHAS22/"/>
650.    <updated>2023-05-02T14:10:58Z</updated>
651.    <title>#684 Westland Whirlwind HAS.22</title>
652.    <summary>Building the Westland Whirlwind HAS.22 from Airfix (no electronics in this one)</summary>
653.    <g:image_link>https://leap.tardate.com/Kraft/Westland/WhirlwindHAS22/assets/WhirlwindHAS22_build.jpg</g:image_link>
654.    <category term="scale models"/>
655.    <category term="Craft"/>
656.  </entry>
657.  <entry>
658.    <id>https://leap.tardate.com/Kraft/BleriotXI/</id>
659.    <link href="https://leap.tardate.com/Kraft/BleriotXI/"/>
660.    <updated>2023-05-02T14:10:52Z</updated>
661.    <title>#683 Blériot XI</title>
662.    <summary>Making a Blériot XI keeper of the spare keys - an Aerobase kit from Japan encased in epoxy resin (no electronics).</summary>
663.    <g:image_link>https://leap.tardate.com/Kraft/BleriotXI/assets/BleriotXI_build.jpg</g:image_link>
664.    <category term="scale models"/>
665.    <category term="Craft"/>
666.    <category term="resin"/>
667.  </entry>
668.  <entry>
669.    <id>https://leap.tardate.com/Audio/AudioAmps/ElectretSoundDetectionModule/</id>
670.    <link href="https://leap.tardate.com/Audio/AudioAmps/ElectretSoundDetectionModule/"/>
671.    <updated>2023-05-02T14:10:51Z</updated>
672.    <title>#682 Electret Sound Detection Module</title>
673.    <summary>Reverse-engineering a commercial electret sound detection module intended for use with an Arduino/microcontroller as a sound level trigger (not audio pre-amp).</summary>
674.    <g:image_link>https://leap.tardate.com/Audio/AudioAmps/ElectretSoundDetectionModule/assets/ElectretSoundDetectionModule_build.jpg</g:image_link>
675.    <category term="Arduino"/>
676.    <category term="Audio"/>
677.  </entry>
678.  <entry>
679.    <id>https://leap.tardate.com/Audio/AudioAmps/ElectretPreamp/</id>
680.    <link href="https://leap.tardate.com/Audio/AudioAmps/ElectretPreamp/"/>
681.    <updated>2023-05-02T14:10:51Z</updated>
682.    <title>#681 Electret Audio Pre-amplifier</title>
683.    <summary>Design and test an electret pre-amplifier comprising an LM358 op-amp active high-pass filter.</summary>
684.    <g:image_link>https://leap.tardate.com/Audio/AudioAmps/ElectretPreamp/assets/ElectretPreamp_build.jpg</g:image_link>
685.    <category term="Breadboard Bling"/>
686.    <category term="OpAmp"/>
687.    <category term="Audio"/>
688.  </entry>
689.  <entry>
690.    <id>https://leap.tardate.com/Equipment/MiniRotaryTool/</id>
691.    <link href="https://leap.tardate.com/Equipment/MiniRotaryTool/"/>
692.    <updated>2023-05-02T14:10:52Z</updated>
693.    <title>#680 Mini Rotary Tool</title>
694.    <summary>unboxing and initial review of a cordless Mini Rotary Tool for engraving and model carving</summary>
695.    <g:image_link>https://leap.tardate.com/Equipment/MiniRotaryTool/assets/MiniRotaryTool_build.jpg</g:image_link>
696.    <category term="Tools"/>
697.  </entry>
698.  <entry>
699.    <id>https://leap.tardate.com/Kraft/IJN/YawataMaruUnyo/</id>
700.    <link href="https://leap.tardate.com/Kraft/IJN/YawataMaruUnyo/"/>
701.    <updated>2023-05-02T14:10:54Z</updated>
702.    <title>#679 Yawatamaru / Un'yō</title>
703.    <summary>Using a Pepper's Ghost effect in a box diorama to capture the Yawatamaru (八幡丸) conversion to Taiyō-class escort carrier Un'yō (雲鷹).</summary>
704.    <g:image_link>https://leap.tardate.com/Kraft/IJN/YawataMaruUnyo/assets/YawataMaruUnyo_build.jpg</g:image_link>
705.    <category term="Arduino"/>
706.    <category term="scale models"/>
707.    <category term="Craft"/>
708.    <category term="IJN"/>
709.  </entry>
710.  <entry>
711.    <id>https://leap.tardate.com/Kraft/InSpring/</id>
712.    <link href="https://leap.tardate.com/Kraft/InSpring/"/>
713.    <updated>2023-05-02T14:10:54Z</updated>
714.    <title>#678 In Spring</title>
715.    <summary>Perhaps my final build for 2022. Fittingly, figures from MasterBox of Ukraine, in a diorama that attempts to capture my greatest hope for what will come in the new year.. (no electronics)</summary>
716.    <g:image_link>https://leap.tardate.com/Kraft/InSpring/assets/InSpring_build.jpg</g:image_link>
717.    <category term="scale models"/>
718.    <category term="Craft"/>
719.  </entry>
720.  <entry>
721.    <id>https://leap.tardate.com/Kraft/WP/WZ34/</id>
722.    <link href="https://leap.tardate.com/Kraft/WP/WZ34/"/>
723.    <updated>2023-05-02T14:10:58Z</updated>
724.    <title>#677 wz. 34</title>
725.    <summary>Building the Polish Samochód pancerny wz. 34 from the 1:35 Mirage Hobby kit, with some figures from MiniArt: The Lost Christmas</summary>
726.    <g:image_link>https://leap.tardate.com/Kraft/WP/WZ34/assets/WZ34_build.jpg</g:image_link>
727.    <category term="scale models"/>
728.    <category term="Craft"/>
729.  </entry>
730.  <entry>
731.    <id>https://leap.tardate.com/Electronics101/Oscillators/LdrLedRing/</id>
732.    <link href="https://leap.tardate.com/Electronics101/Oscillators/LdrLedRing/"/>
733.    <updated>2023-05-02T14:10:52Z</updated>
734.    <title>#676 LED-LDR Ring Oscillator</title>
735.    <summary>Building a simple ring oscillator using a light dependent resistor to couple the LED stages. From a circuit published in Elektor 2012/07.</summary>
736.    <g:image_link>https://leap.tardate.com/Electronics101/Oscillators/LdrLedRing/assets/LdrLedRing_build.jpg</g:image_link>
737.    <category term="Oscillators"/>
738.    <category term="LED"/>
739.    <category term="LDR"/>
740.  </entry>
741.  <entry>
742.    <id>https://leap.tardate.com/Electronics101/LDR/DataSlicer/</id>
743.    <link href="https://leap.tardate.com/Electronics101/LDR/DataSlicer/"/>
744.    <updated>2023-05-02T14:10:51Z</updated>
745.    <title>#675 LDR Data Slicer Trigger</title>
746.    <summary>Using a data slicer to extract a clean trigger signal from a light dependent resistor (LDR)</summary>
747.    <g:image_link>https://leap.tardate.com/Electronics101/LDR/DataSlicer/assets/DataSlicer_build.jpg</g:image_link>
748.    <category term="Sensors"/>
749.    <category term="OpAmp"/>
750.  </entry>
751.  <entry>
752.    <id>https://leap.tardate.com/Electronics101/LDR/DifferentialComparator/</id>
753.    <link href="https://leap.tardate.com/Electronics101/LDR/DifferentialComparator/"/>
754.    <updated>2023-05-02T14:10:51Z</updated>
755.    <title>#674 LDR Differential Comparator</title>
756.    <summary>Using a differential amplifier to extract a clean trigger signal from a light dependent resistor (LDR)</summary>
757.    <g:image_link>https://leap.tardate.com/Electronics101/LDR/DifferentialComparator/assets/DifferentialComparator_build.jpg</g:image_link>
758.    <category term="Sensors"/>
759.    <category term="OpAmp"/>
760.  </entry>
761.  <entry>
762.    <id>https://leap.tardate.com/Kraft/Soviet/VictorIII/</id>
763.    <link href="https://leap.tardate.com/Kraft/Soviet/VictorIII/"/>
764.    <updated>2023-05-02T14:10:56Z</updated>
765.    <title>#673 Empire in Decay - Victor III</title>
766.    <summary>A Soviet Victor III tied up to a wharf and left to decay in the toxic sludge ... modelled from the Dragon 1:700 kit (no electronics in this one)</summary>
767.    <g:image_link>https://leap.tardate.com/Kraft/Soviet/VictorIII/assets/VictorIII_build.jpg</g:image_link>
768.    <category term="scale models"/>
769.    <category term="Craft"/>
770.  </entry>
771.  <entry>
772.    <id>https://leap.tardate.com/Kraft/PLAAF/J20/</id>
773.    <link href="https://leap.tardate.com/Kraft/PLAAF/J20/"/>
774.    <updated>2023-05-02T14:10:54Z</updated>
775.    <title>#672 J-20</title>
776.    <summary>Building the Trumpeter 1:144 kit of the Chengdu J-20 fifth-generation fighter of the PLAAF (no electronics here, just a great little kit)</summary>
777.    <g:image_link>https://leap.tardate.com/Kraft/PLAAF/J20/assets/J20_build.jpg</g:image_link>
778.    <category term="scale models"/>
779.    <category term="Craft"/>
780.  </entry>
781.  <entry>
782.    <id>https://leap.tardate.com/Kraft/IJA/MitsubishiKi46/</id>
783.    <link href="https://leap.tardate.com/Kraft/IJA/MitsubishiKi46/"/>
784.    <updated>2024-04-10T03:27:55Z</updated>
785.    <title>#671 Mitsubishi Ki-46 Trainer</title>
786.    <summary>Building a SG$5 bargain ARII 1:72 kit of the Mitsubishi Ki-46-II Dinah Trainer (no electronics)</summary>
787.    <g:image_link>https://leap.tardate.com/Kraft/IJA/MitsubishiKi46/assets/MitsubishiKi46_build.jpg</g:image_link>
788.    <category term="scale models"/>
789.    <category term="Craft"/>
790.  </entry>
791.  <entry>
792.    <id>https://leap.tardate.com/playground/Nano/ExpansionBoard/</id>
793.    <link href="https://leap.tardate.com/playground/Nano/ExpansionBoard/"/>
794.    <updated>2023-05-02T14:10:59Z</updated>
795.    <title>#670 Nano Expansion Board</title>
796.    <summary>Testing and reverse engineering a cheap Arduino Nano Expansion board, also pondering why GVS instead of GSV or GVSG.</summary>
797.    <g:image_link>https://leap.tardate.com/playground/Nano/ExpansionBoard/assets/ExpansionBoard_build.jpg</g:image_link>
798.    <category term="Arduino"/>
799.  </entry>
800.  <entry>
801.    <id>https://leap.tardate.com/Kraft/PLAN/Type051C/</id>
802.    <link href="https://leap.tardate.com/Kraft/PLAN/Type051C/"/>
803.    <updated>2023-05-02T14:10:54Z</updated>
804.    <title>#669 PLAN Type 051C</title>
805.    <summary>Building the PLAN Type 051C destroyer DDG 115 沈阳 (Shenyang) with a little LED illumination.</summary>
806.    <g:image_link>https://leap.tardate.com/Kraft/PLAN/Type051C/assets/Type051C_build.jpg</g:image_link>
807.    <category term="Craft"/>
808.    <category term="scale models"/>
809.    <category term="LED"/>
810.  </entry>
811.  <entry>
812.    <id>https://leap.tardate.com/Radio/CodePracticeOscillator/</id>
813.    <link href="https://leap.tardate.com/Radio/CodePracticeOscillator/"/>
814.    <updated>2023-05-02T14:10:59Z</updated>
815.    <title>#668 Code Practice Oscillator</title>
816.    <summary>Build and test a simple 2-transistor code practice oscillator</summary>
817.    <g:image_link>https://leap.tardate.com/Radio/CodePracticeOscillator/assets/CodePracticeOscillator_build.jpg</g:image_link>
818.    <category term="BJT"/>
819.    <category term="RC"/>
820.    <category term="Oscillators"/>
821.  </entry>
822.  <entry>
823.    <id>https://leap.tardate.com/Electronics101/SwitchModePowerSupplies/MC34063/BuckConverter/</id>
824.    <link href="https://leap.tardate.com/Electronics101/SwitchModePowerSupplies/MC34063/BuckConverter/"/>
825.    <updated>2023-05-02T14:10:52Z</updated>
826.    <title>#667 MC34063 Buck Converter</title>
827.    <summary>Design and test a basic 9v to 5v step-down regulator circuit using the MC34063A.</summary>
828.    <g:image_link>https://leap.tardate.com/Electronics101/SwitchModePowerSupplies/MC34063/BuckConverter/assets/BuckConverter_build.jpg</g:image_link>
829.    <category term="Power"/>
830.  </entry>
831.  <entry>
832.    <id>https://leap.tardate.com/Kraft/AxisOfChess/</id>
833.    <link href="https://leap.tardate.com/Kraft/AxisOfChess/"/>
834.    <updated>2023-05-02T14:10:52Z</updated>
835.    <title>#666 Axis Of Chess</title>
836.    <summary>Welcome to Axis of Chess, my little excuse for using up a bunch of spare Pit-Road 1:700 vehicles. No electronics in this one.</summary>
837.    <g:image_link>https://leap.tardate.com/Kraft/AxisOfChess/assets/AxisOfChess_build.jpg</g:image_link>
838.    <category term="Game"/>
839.    <category term="scale models"/>
840.    <category term="Craft"/>
841.  </entry>
842.  <entry>
843.    <id>https://leap.tardate.com/Kraft/WP/PMW/ORPSlazak/</id>
844.    <link href="https://leap.tardate.com/Kraft/WP/PMW/ORPSlazak/"/>
845.    <updated>2023-05-02T14:10:57Z</updated>
846.    <title>#665 ORP Ślązak</title>
847.    <summary>Building the ORP Ślązak Hunt-class destroyer in 1:700 scale in a Baltic Winter Patrol setting. My first venture into IBG ship kits - no electronics here, just a very fine kit experience.</summary>
848.    <g:image_link>https://leap.tardate.com/Kraft/WP/PMW/ORPSlazak/assets/ORPSlazak_build.jpg</g:image_link>
849.    <category term="scale models"/>
850.    <category term="Craft"/>
851.  </entry>
852.  <entry>
853.    <id>https://leap.tardate.com/Equipment/LightControlSwitchKit/</id>
854.    <link href="https://leap.tardate.com/Equipment/LightControlSwitchKit/"/>
855.    <updated>2023-05-02T14:10:52Z</updated>
856.    <title>#664 Light Control Switch Kit</title>
857.    <summary>Building an LDR-controlled relay kit with hysteresis/delay for on and off transitions (LM393 comparator with RC-dampened inputs)</summary>
858.    <g:image_link>https://leap.tardate.com/Equipment/LightControlSwitchKit/assets/LightControlSwitchKit_build.jpg</g:image_link>
859.    <category term="LDR"/>
860.    <category term="CMOS/TTL"/>
861.  </entry>
862.  <entry>
863.    <id>https://leap.tardate.com/Electronics101/Displays/Lcd3Digit/</id>
864.    <link href="https://leap.tardate.com/Electronics101/Displays/Lcd3Digit/"/>
865.    <updated>2023-05-02T14:10:51Z</updated>
866.    <title>#663 3-Digit LCD Panel</title>
867.    <summary>Testing a small 3V, 3-digit LCD panel with an example of driving the mulitplexed LCD (1/4 duty, 1/2 bias) with an Arduino/ATmega328 sketch.</summary>
868.    <g:image_link>https://leap.tardate.com/Electronics101/Displays/Lcd3Digit/assets/Lcd3Digit_build.jpg</g:image_link>
869.    <category term="LCD"/>
870.    <category term="Arduino"/>
871.  </entry>
872.  <entry>
873.    <id>https://leap.tardate.com/Kraft/IJN/TachikawaKKY1/</id>
874.    <link href="https://leap.tardate.com/Kraft/IJN/TachikawaKKY1/"/>
875.    <updated>2023-05-02T14:10:54Z</updated>
876.    <title>#662 Tachikawa KKY-1</title>
877.    <summary>Building the rare Tachikawa KKY1 from Ukrainian model company Amodel. No electronics in this one.</summary>
878.    <g:image_link>https://leap.tardate.com/Kraft/IJN/TachikawaKKY1/assets/TachikawaKKY1_build.jpg</g:image_link>
879.    <category term="scale models"/>
880.    <category term="Craft"/>
881.  </entry>
882.  <entry>
883.    <id>https://leap.tardate.com/Kraft/Concorde/</id>
884.    <link href="https://leap.tardate.com/Kraft/Concorde/"/>
885.    <updated>2023-05-02T14:10:52Z</updated>
886.    <title>#661 Concorde</title>
887.    <summary>Last flight of the Concorde - the Airfix 1:114 with LED effects in 1970s travel-agent chic </summary>
888.    <g:image_link>https://leap.tardate.com/Kraft/Concorde/assets/Concorde_build.jpg</g:image_link>
889.    <category term="LED"/>
890.    <category term="scale models"/>
891.  </entry>
892.  <entry>
893.    <id>https://leap.tardate.com/Kraft/P40/WarHawk40K/</id>
894.    <link href="https://leap.tardate.com/Kraft/P40/WarHawk40K/"/>
895.    <updated>2023-05-02T14:10:54Z</updated>
896.    <title>#660 WarHawk 40K</title>
897.    <summary>Taking the Airfix 1:72 Curtiss Warhawk in a slightly unusual direction, with LED effects driven by a CD4060 ripple counter</summary>
898.    <g:image_link>https://leap.tardate.com/Kraft/P40/WarHawk40K/assets/WarHawk40K_build.jpg</g:image_link>
899.    <category term="LED"/>
900.    <category term="scale models"/>
901.    <category term="CMOS/TTL"/>
902.  </entry>
903.  <entry>
904.    <id>https://leap.tardate.com/Kraft/Strv103/</id>
905.    <link href="https://leap.tardate.com/Kraft/Strv103/"/>
906.    <updated>2023-05-02T14:10:57Z</updated>
907.    <title>#659 Stridsvagn 103</title>
908.    <summary>Practicing some hull-down diorama effects with the Swedish Stridsvagn 103 using the Trumpeter 1:72 kit (no electronics)</summary>
909.    <g:image_link>https://leap.tardate.com/Kraft/Strv103/assets/Strv103_build.jpg</g:image_link>
910.    <category term="scale models"/>
911.    <category term="Craft"/>
912.    <category term="AFV"/>
913.  </entry>
914.  <entry>
915.    <id>https://leap.tardate.com/Kraft/RAAF/Boomerang/</id>
916.    <link href="https://leap.tardate.com/Kraft/RAAF/Boomerang/"/>
917.    <updated>2023-05-02T14:10:55Z</updated>
918.    <title>#658 CA-19 Boomerang</title>
919.    <summary>Building the Special Hobby 1:72 RAAF CA-19 Boomerang, as stationed in New Britain 1945 (no electronics)</summary>
920.    <g:image_link>https://leap.tardate.com/Kraft/RAAF/Boomerang/assets/Boomerang_build.jpg</g:image_link>
921.    <category term="scale models"/>
922.    <category term="Craft"/>
923.  </entry>
924.  <entry>
925.    <id>https://leap.tardate.com/Kraft/P40/EggScale/</id>
926.    <link href="https://leap.tardate.com/Kraft/P40/EggScale/"/>
927.    <updated>2023-05-02T14:10:54Z</updated>
928.    <title>#657 Flying Tigers Egg-Scale</title>
929.    <summary>Building the Tiger Model egg-scale P-40 so it can join its 1:72 and 1:144 Brothers in Arms (no electronics in this one)</summary>
930.    <g:image_link>https://leap.tardate.com/Kraft/P40/EggScale/assets/EggScale_build.jpg</g:image_link>
931.    <category term="scale models"/>
932.    <category term="Craft"/>
933.  </entry>
934.  <entry>
935.    <id>https://leap.tardate.com/Electronics101/Oscillators/SchmittCrystalLockedOscillator/</id>
936.    <link href="https://leap.tardate.com/Electronics101/Oscillators/SchmittCrystalLockedOscillator/"/>
937.    <updated>2023-05-02T14:10:52Z</updated>
938.    <title>#656 Crystal-Locked Schmitt Oscillator</title>
939.    <summary>Testing a basic crystal-locked Schmitt oscillator using a 74HC14</summary>
940.    <g:image_link>https://leap.tardate.com/Electronics101/Oscillators/SchmittCrystalLockedOscillator/assets/SchmittCrystalLockedOscillator_build.jpg</g:image_link>
941.    <category term="CMOS/TTL"/>
942.    <category term="Oscillators"/>
943.  </entry>
944.  <entry>
945.    <id>https://leap.tardate.com/Kraft/RoyalNavy/HMSRevengeS27/</id>
946.    <link href="https://leap.tardate.com/Kraft/RoyalNavy/HMSRevengeS27/"/>
947.    <updated>2023-05-02T14:10:56Z</updated>
948.    <title>#655 HMS Revenge</title>
949.    <summary>HMS Revenge heading out from Faslane on patrol - an attempt at capturing the distinctive wake of a sub cruising on the surface. Dragon 1:700 kit.</summary>
950.    <g:image_link>https://leap.tardate.com/Kraft/RoyalNavy/HMSRevengeS27/assets/HMSRevengeS27_build.jpg</g:image_link>
951.    <category term="scale models"/>
952.    <category term="Craft"/>
953.  </entry>
954.  <entry>
955.    <id>https://leap.tardate.com/Kraft/IJN/No13SubChaser/</id>
956.    <link href="https://leap.tardate.com/Kraft/IJN/No13SubChaser/"/>
957.    <updated>2023-05-02T14:10:54Z</updated>
958.    <title>#654 IJN No.13 Sub-chaser</title>
959.    <summary>IJN No.13 class submarine chaser 第十三号型駆潜艇 on a quiet island patrol</summary>
960.    <g:image_link>https://leap.tardate.com/Kraft/IJN/No13SubChaser/assets/No13SubChaser_build.jpg</g:image_link>
961.    <category term="scale models"/>
962.    <category term="Craft"/>
963.    <category term="IJN"/>
964.  </entry>
965.  <entry>
966.    <id>https://leap.tardate.com/Audio/Visualization/UsbLedVolumeIndicatorKit/</id>
967.    <link href="https://leap.tardate.com/Audio/Visualization/UsbLedVolumeIndicatorKit/"/>
968.    <updated>2023-05-02T14:10:51Z</updated>
969.    <title>#653 USB Audio Level Indicator Kit</title>
970.    <summary>An electret-input audio level kit based on cascading LM358 stages with LED indicators</summary>
971.    <g:image_link>https://leap.tardate.com/Audio/Visualization/UsbLedVolumeIndicatorKit/assets/UsbLedVolumeIndicatorKit_build.jpg</g:image_link>
972.    <category term="LM358"/>
973.    <category term="Audio"/>
974.    <category term="LED"/>
975.  </entry>
976.  <entry>
977.    <id>https://leap.tardate.com/Kraft/DaihatsuMidget/</id>
978.    <link href="https://leap.tardate.com/Kraft/DaihatsuMidget/"/>
979.    <updated>2023-05-02T14:10:52Z</updated>
980.    <title>#652 Daihatsu Midget</title>
981.    <summary>Building the iconic 1957 Daihatsu Midget DMK from a Micro Ace/Arii kit with some scratch modifications. No electronics in this one.</summary>
982.    <g:image_link>https://leap.tardate.com/Kraft/DaihatsuMidget/assets/DaihatsuMidget_build.jpg</g:image_link>
983.    <category term="scale models"/>
984.    <category term="Craft"/>
985.  </entry>
986.  <entry>
987.    <id>https://leap.tardate.com/Kraft/WP/PZL/TS-11/</id>
988.    <link href="https://leap.tardate.com/Kraft/WP/PZL/TS-11/"/>
989.    <updated>2023-05-02T14:10:58Z</updated>
990.    <title>#651 TS-11 Iskra</title>
991.    <summary>Building the beautiful Arma Hobby 1:72 PZL TS-11 Iskra. No electronics in this one, just enjoying the build.</summary>
992.    <g:image_link>https://leap.tardate.com/Kraft/WP/PZL/TS-11/assets/TS-11_build.jpg</g:image_link>
993.    <category term="scale models"/>
994.    <category term="Craft"/>
995.  </entry>
996.  <entry>
997.    <id>https://leap.tardate.com/Kraft/MongolWarriors/</id>
998.    <link href="https://leap.tardate.com/Kraft/MongolWarriors/"/>
999.    <updated>2023-05-02T14:10:54Z</updated>
1000.    <title>#650 Mongol Warriors</title>
1001.    <summary>Using select 1:72 figures from HäT set 8298 to make a little diorama in an Ikea picture frame with LED lighting</summary>
1002.    <g:image_link>https://leap.tardate.com/Kraft/MongolWarriors/assets/MongolWarriors_build.jpg</g:image_link>
1003.    <category term="scale models"/>
1004.    <category term="Craft"/>
1005.    <category term="LED"/>
1006.  </entry>
1007.  <entry>
1008.    <id>https://leap.tardate.com/Kraft/P40/AFVClub68/</id>
1009.    <link href="https://leap.tardate.com/Kraft/P40/AFVClub68/"/>
1010.    <updated>2023-05-02T14:10:54Z</updated>
1011.    <title>#649 P-40B Flying Tiger in 1:144</title>
1012.    <summary>Improving the already well-detailed 1:144 AFV Club Flying Tigers P-40B with a scratch built cockpit (no electronics in this one)</summary>
1013.    <g:image_link>https://leap.tardate.com/Kraft/P40/AFVClub68/assets/AFVClub68_build.jpg</g:image_link>
1014.    <category term="scale models"/>
1015.    <category term="Craft"/>
1016.  </entry>
1017.  <entry>
1018.    <id>https://leap.tardate.com/Kraft/P40/FlyingTigers/</id>
1019.    <link href="https://leap.tardate.com/Kraft/P40/FlyingTigers/"/>
1020.    <updated>2023-05-02T14:10:54Z</updated>
1021.    <title>#648 P-40B Flying Tiger in 1:72</title>
1022.    <summary>Building the most excellent Airfix P-40B H81-A2 1:72 in Flying Tigers livery (no electronics in this one)</summary>
1023.    <g:image_link>https://leap.tardate.com/Kraft/P40/FlyingTigers/assets/FlyingTigers_build.jpg</g:image_link>
1024.    <category term="scale models"/>
1025.    <category term="Craft"/>
1026.  </entry>
1027.  <entry>
1028.    <id>https://leap.tardate.com/Equipment/HumidifierModule/</id>
1029.    <link href="https://leap.tardate.com/Equipment/HumidifierModule/"/>
1030.    <updated>2023-05-02T14:10:52Z</updated>
1031.    <title>#647 USB Humidifier Module</title>
1032.    <summary>Testing a cheap USB/5V powered humidifier module the produces prodigious volumes of mist</summary>
1033.    <g:image_link>https://leap.tardate.com/Equipment/HumidifierModule/assets/HumidifierModule_build.jpg</g:image_link>
1034.    <category term="USB"/>
1035.    <category term="environmental"/>
1036.  </entry>
1037.  <entry>
1038.    <id>https://leap.tardate.com/Kraft/Fairey/Gannet/</id>
1039.    <link href="https://leap.tardate.com/Kraft/Fairey/Gannet/"/>
1040.    <updated>2023-05-02T14:10:52Z</updated>
1041.    <title>#646 Fairey Gannet</title>
1042.    <summary>Building the most beautifully ugly Fairey Gannet from the Trumpeter 1:72 kit (no electronics in this one)</summary>
1043.    <g:image_link>https://leap.tardate.com/Kraft/Fairey/Gannet/assets/Gannet_build.jpg</g:image_link>
1044.    <category term="scale models"/>
1045.    <category term="Craft"/>
1046.  </entry>
1047.  <entry>
1048.    <id>https://leap.tardate.com/Kraft/IJA/TachikawaKi55/</id>
1049.    <link href="https://leap.tardate.com/Kraft/IJA/TachikawaKi55/"/>
1050.    <updated>2024-04-10T03:27:55Z</updated>
1051.    <title>#645 Tachikawa Ki-55</title>
1052.    <summary>Building a SG$5 bargain Fujimi 1:72 kit of the Tachikawa Ki-55 Type 99 Advanced Trainer (no electronics in this one)</summary>
1053.    <g:image_link>https://leap.tardate.com/Kraft/IJA/TachikawaKi55/assets/TachikawaKi55_build.jpg</g:image_link>
1054.    <category term="scale models"/>
1055.    <category term="Craft"/>
1056.  </entry>
1057.  <entry>
1058.    <id>https://leap.tardate.com/Kraft/WalnutChallenge/Cossack/</id>
1059.    <link href="https://leap.tardate.com/Kraft/WalnutChallenge/Cossack/"/>
1060.    <updated>2023-05-02T14:10:58Z</updated>
1061.    <title>#644 Ukrainian Cossack</title>
1062.    <summary>An heroic pose in a walnut with a figure from the Orion Ukrainian Mounted Cossacks set. No, this is not  meant to be political - but if you come and try to steal my nuts, expect to fight this guy! (no electronics in this one)</summary>
1063.    <g:image_link>https://leap.tardate.com/Kraft/WalnutChallenge/Cossack/assets/Cossack_build.jpg</g:image_link>
1064.    <category term="scale models"/>
1065.    <category term="Craft"/>
1066.  </entry>
1067.  <entry>
1068.    <id>https://leap.tardate.com/Electronics101/Power/WirelessLedModule/</id>
1069.    <link href="https://leap.tardate.com/Electronics101/Power/WirelessLedModule/"/>
1070.    <updated>2023-05-02T14:10:52Z</updated>
1071.    <title>#643 XKT-511 Wireless LED Module</title>
1072.    <summary>Investigating a wireless LED power module based on the XKT-511 chip</summary>
1073.    <g:image_link>https://leap.tardate.com/Electronics101/Power/WirelessLedModule/assets/WirelessLedModule_build.jpg</g:image_link>
1074.    <category term="Power"/>
1075.    <category term="Wireless"/>
1076.    <category term="LED"/>
1077.  </entry>
1078.  <entry>
1079.    <id>https://leap.tardate.com/Electronics101/SwitchModePowerSupplies/MT3608/SafeControl/</id>
1080.    <link href="https://leap.tardate.com/Electronics101/SwitchModePowerSupplies/MT3608/SafeControl/"/>
1081.    <updated>2023-05-02T14:10:52Z</updated>
1082.    <title>#642 MT3608 Safe Control</title>
1083.    <summary>Configuring variable boost control with the MT3608 that is safe for all rated input voltages</summary>
1084.    <g:image_link>https://leap.tardate.com/Electronics101/SwitchModePowerSupplies/MT3608/SafeControl/assets/SafeControl_build.jpg</g:image_link>
1085.    <category term="Power"/>
1086.    <category term="SMPS"/>
1087.  </entry>
1088.  <entry>
1089.    <id>https://leap.tardate.com/Kraft/IJN/Fubuki/</id>
1090.    <link href="https://leap.tardate.com/Kraft/IJN/Fubuki/"/>
1091.    <updated>2023-05-02T14:10:53Z</updated>
1092.    <title>#641 Fubuki</title>
1093.    <summary>Building the Japanese destroyer Fubuki (吹雪, 1927) from a beautifully detailed 1:700 Yamashita Hobby kit with Tetra Model Works PE</summary>
1094.    <g:image_link>https://leap.tardate.com/Kraft/IJN/Fubuki/assets/Fubuki_build.jpg</g:image_link>
1095.    <category term="scale models"/>
1096.    <category term="Craft"/>
1097.    <category term="IJN"/>
1098.  </entry>
1099.  <entry>
1100.    <id>https://leap.tardate.com/Kraft/Falklands/HMSSheffield/</id>
1101.    <link href="https://leap.tardate.com/Kraft/Falklands/HMSSheffield/"/>
1102.    <updated>2023-05-02T14:10:53Z</updated>
1103.    <title>#640 HMS Sheffield</title>
1104.    <summary>Reproducing a famous photograph of the fire-fighting efforts aboard the HMS Sheffield after is was hit by an Exocet on 4 May 1982</summary>
1105.    <g:image_link>https://leap.tardate.com/Kraft/Falklands/HMSSheffield/assets/HMSSheffield_build.jpg</g:image_link>
1106.    <category term="scale models"/>
1107.    <category term="Craft"/>
1108.    <category term="Falklands"/>
1109.  </entry>
1110.  <entry>
1111.    <id>https://leap.tardate.com/Kraft/Spitfire/XIV/</id>
1112.    <link href="https://leap.tardate.com/Kraft/Spitfire/XIV/"/>
1113.    <updated>2023-05-02T14:10:57Z</updated>
1114.    <title>#639 Spitfire Mk.XIV</title>
1115.    <summary>Building the beautiful candy red G-Fire Spitfire Mk.XIV from Airfix in 1:48 scale. No electronics in this one.</summary>
1116.    <g:image_link>https://leap.tardate.com/Kraft/Spitfire/XIV/assets/XIV_build.jpg</g:image_link>
1117.    <category term="scale models"/>
1118.    <category term="Craft"/>
1119.  </entry>
1120.  <entry>
1121.    <id>https://leap.tardate.com/Kraft/WalnutChallenge/Overboard/</id>
1122.    <link href="https://leap.tardate.com/Kraft/WalnutChallenge/Overboard/"/>
1123.    <updated>2023-05-02T14:10:58Z</updated>
1124.    <title>#638 Man Overboard</title>
1125.    <summary>A little 1:700 diorama in a walnut featuring a little drama while mooring a Mitsubishi F1M2 observation seaplane. Part of the Just Making Conversation podcast Walnut Challenge group build. No electronics in this one.</summary>
1126.    <g:image_link>https://leap.tardate.com/Kraft/WalnutChallenge/Overboard/assets/Overboard_build.jpg</g:image_link>
1127.    <category term="scale models"/>
1128.    <category term="Craft"/>
1129.  </entry>
1130.  <entry>
1131.    <id>https://leap.tardate.com/Electronics101/CD4069/LogicProbe/</id>
1132.    <link href="https://leap.tardate.com/Electronics101/CD4069/LogicProbe/"/>
1133.    <updated>2023-05-02T14:10:51Z</updated>
1134.    <title>#637 CD4069 Logic Probe</title>
1135.    <summary>A simple logic probe using inverter gates</summary>
1136.    <g:image_link>https://leap.tardate.com/Electronics101/CD4069/LogicProbe/assets/LogicProbe_build.jpg</g:image_link>
1137.    <category term="Digital Logic"/>
1138.    <category term="CMOS/TTL"/>
1139.  </entry>
1140.  <entry>
1141.    <id>https://leap.tardate.com/Electronics101/CD4001/LogicProbe/</id>
1142.    <link href="https://leap.tardate.com/Electronics101/CD4001/LogicProbe/"/>
1143.    <updated>2023-05-02T14:10:51Z</updated>
1144.    <title>#636 CD4001 Logic Probe</title>
1145.    <summary>A simple logic probe using NOR gates</summary>
1146.    <g:image_link>https://leap.tardate.com/Electronics101/CD4001/LogicProbe/assets/LogicProbe_build.jpg</g:image_link>
1147.    <category term="Digital Logic"/>
1148.    <category term="CMOS/TTL"/>
1149.  </entry>
1150.  <entry>
1151.    <id>https://leap.tardate.com/Electronics101/CD4001/SRLatch/</id>
1152.    <link href="https://leap.tardate.com/Electronics101/CD4001/SRLatch/"/>
1153.    <updated>2023-05-02T14:10:51Z</updated>
1154.    <title>#635 CD4001 SR Latch</title>
1155.    <summary>Set-Reset latch implemented with CD4001 NOR gates</summary>
1156.    <g:image_link>https://leap.tardate.com/Electronics101/CD4001/SRLatch/assets/SRLatch_build.jpg</g:image_link>
1157.    <category term="Digital Logic"/>
1158.    <category term="CMOS/TTL"/>
1159.  </entry>
1160.  <entry>
1161.    <id>https://leap.tardate.com/Kraft/IJN/NakajimaB5N2/</id>
1162.    <link href="https://leap.tardate.com/Kraft/IJN/NakajimaB5N2/"/>
1163.    <updated>2023-05-02T14:10:53Z</updated>
1164.    <title>#634 Nakajima B5N2 Kate</title>
1165.    <summary>Building the Airfix 1:72 Nakajima B5N2 Kate - an exercise in weathering, no electronics.</summary>
1166.    <g:image_link>https://leap.tardate.com/Kraft/IJN/NakajimaB5N2/assets/NakajimaB5N2_build.jpg</g:image_link>
1167.    <category term="scale models"/>
1168.    <category term="Craft"/>
1169.  </entry>
1170.  <entry>
1171.    <id>https://leap.tardate.com/Electronics101/SerialInterface/UsbToRJ45/</id>
1172.    <link href="https://leap.tardate.com/Electronics101/SerialInterface/UsbToRJ45/"/>
1173.    <updated>2023-05-02T14:10:52Z</updated>
1174.    <title>#633 USB to RJ45 Adapter</title>
1175.    <summary>building a USB to RJ45 adapter with the CH340G and MAX3232 chipsets</summary>
1176.    <g:image_link>https://leap.tardate.com/Electronics101/SerialInterface/UsbToRJ45/assets/UsbToRJ45_build.jpg</g:image_link>
1177.    <category term="RS232"/>
1178.    <category term="Serial"/>
1179.    <category term="USB"/>
1180.    <category term="RJ45"/>
1181.  </entry>
1182.  <entry>
1183.    <id>https://leap.tardate.com/Equipment/FoamCutter/</id>
1184.    <link href="https://leap.tardate.com/Equipment/FoamCutter/"/>
1185.    <updated>2022-05-05T16:55:49Z</updated>
1186.    <title>#632 Foam Cutters</title>
1187.    <summary>Examining various foam cutter designs and building a couple for small-scale foam sculpting</summary>
1188.    <g:image_link>https://leap.tardate.com/Equipment/FoamCutter/assets/FoamCutter_build.jpg</g:image_link>
1189.    <category term="Craft"/>
1190.    <category term="Tools"/>
1191.  </entry>
1192.  <entry>
1193.    <id>https://leap.tardate.com/Electronics101/555Timer/LongRunning/</id>
1194.    <link href="https://leap.tardate.com/Electronics101/555Timer/LongRunning/"/>
1195.    <updated>2022-05-01T09:17:14Z</updated>
1196.    <title>#631 Long Running Timer</title>
1197.    <summary>Building a very low frequency 555 timer circuit, and pushing the envelope with a 1GΩ zero-electrolytic design using the low-leakage TLC556C</summary>
1198.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/LongRunning/assets/LongRunning_build.jpg</g:image_link>
1199.    <category term="555 Timer"/>
1200.    <category term="Arduino"/>
1201.  </entry>
1202.  <entry>
1203.    <id>https://leap.tardate.com/Kraft/Spitfire/Vc/</id>
1204.    <link href="https://leap.tardate.com/Kraft/Spitfire/Vc/"/>
1205.    <updated>2022-05-10T15:34:27Z</updated>
1206.    <title>#630 Spitfire Mk.Vc</title>
1207.    <summary>Building a diorama inspired by the box-art of Airfix's 1:72 scale Spitfire Mk.Vc flying over La Sénia Algeria 1942, enhanced with some LED candle effects and targets of opportunity.</summary>
1208.    <g:image_link>https://leap.tardate.com/Kraft/Spitfire/Vc/assets/Vc_build.jpg</g:image_link>
1209.    <category term="scale models"/>
1210.    <category term="Craft"/>
1211.    <category term="LED"/>
1212.  </entry>
1213.  <entry>
1214.    <id>https://leap.tardate.com/Equipment/WaterLevelControlKit/</id>
1215.    <link href="https://leap.tardate.com/Equipment/WaterLevelControlKit/"/>
1216.    <updated>2022-04-07T15:16:00Z</updated>
1217.    <title>#629 Water-Level Control Kit</title>
1218.    <summary>Build and test a high-low switching circuit with relay output. It is intended for monitoring a water tank level and switching a pump.</summary>
1219.    <g:image_link>https://leap.tardate.com/Equipment/WaterLevelControlKit/assets/WaterLevelControlKit_build.jpg</g:image_link>
1220.    <category term="OpAmp"/>
1221.    <category term="Control"/>
1222.  </entry>
1223.  <entry>
1224.    <id>https://leap.tardate.com/Kraft/Westland/Lynx/</id>
1225.    <link href="https://leap.tardate.com/Kraft/Westland/Lynx/"/>
1226.    <updated>2023-05-02T14:10:58Z</updated>
1227.    <title>#628 Westland Lynx</title>
1228.    <summary>Building the Royal Navy Westland Lynx HAS.3 from HobbyBoss (no electronics in this one)</summary>
1229.    <g:image_link>https://leap.tardate.com/Kraft/Westland/Lynx/assets/Lynx_build.jpg</g:image_link>
1230.    <category term="scale models"/>
1231.    <category term="Craft"/>
1232.  </entry>
1233.  <entry>
1234.    <id>https://leap.tardate.com/Kraft/BritishArmy/VauxhallDTypeAmbulance/</id>
1235.    <link href="https://leap.tardate.com/Kraft/BritishArmy/VauxhallDTypeAmbulance/"/>
1236.    <updated>2023-05-02T14:10:52Z</updated>
1237.    <title>#627 Vauxhall D-Type Ambulance</title>
1238.    <summary>Building the wonderful little 1:72 Vauxhall D-Type Ambulance kit from Ukrainian manufacturer Roden. Dedicated to the memory of Valery Grygorenko. Valery created some of the most amazing box art for Roden but tragically he was killed in a Russian attack near his home in March 2022.</summary>
1239.    <g:image_link>https://leap.tardate.com/Kraft/BritishArmy/VauxhallDTypeAmbulance/assets/VauxhallDTypeAmbulance_build.jpg</g:image_link>
1240.    <category term="scale models"/>
1241.    <category term="Craft"/>
1242.  </entry>
1243.  <entry>
1244.    <id>https://leap.tardate.com/Kraft/RoyalNavy/Buccaneer/</id>
1245.    <link href="https://leap.tardate.com/Kraft/RoyalNavy/Buccaneer/"/>
1246.    <updated>2023-05-02T14:10:56Z</updated>
1247.    <title>#626 Blackburn Buccaneer S.2C</title>
1248.    <summary>An excuse to build another sea base - this time for an aircraft - the RN Blackburn Buccaneer S.2C from Airfix in 1:72 scale, tooling around the North Sea at 30ft.</summary>
1249.    <g:image_link>https://leap.tardate.com/Kraft/RoyalNavy/Buccaneer/assets/Buccaneer_build.jpg</g:image_link>
1250.    <category term="scale models"/>
1251.    <category term="Craft"/>
1252.  </entry>
1253.  <entry>
1254.    <id>https://leap.tardate.com/Electronics101/LED/RemoteControlCandles/</id>
1255.    <link href="https://leap.tardate.com/Electronics101/LED/RemoteControlCandles/"/>
1256.    <updated>2022-02-22T14:48:48Z</updated>
1257.    <title>#625 Remote Control Candles</title>
1258.    <summary>Examining some intrared-controlled LED candles, reverse-engineering the control protocol, and making them dance to the tune of an Arduino.</summary>
1259.    <g:image_link>https://leap.tardate.com/Electronics101/LED/RemoteControlCandles/assets/RemoteControlCandles_build.jpg</g:image_link>
1260.    <category term="IR"/>
1261.    <category term="Arduino"/>
1262.    <category term="LED"/>
1263.  </entry>
1264.  <entry>
1265.    <id>https://leap.tardate.com/playground/IR/Dumper/</id>
1266.    <link href="https://leap.tardate.com/playground/IR/Dumper/"/>
1267.    <updated>2022-02-22T14:48:48Z</updated>
1268.    <title>#624 IR Dumper</title>
1269.    <summary>Reverse-engineering infrared protocols using the Arduino-IRremote library.</summary>
1270.    <g:image_link>https://leap.tardate.com/playground/IR/Dumper/assets/Dumper_build.jpg</g:image_link>
1271.    <category term="IR"/>
1272.    <category term="Arduino"/>
1273.  </entry>
1274.  <entry>
1275.    <id>https://leap.tardate.com/Kraft/RAAF/Wirraway/</id>
1276.    <link href="https://leap.tardate.com/Kraft/RAAF/Wirraway/"/>
1277.    <updated>2023-05-02T14:10:55Z</updated>
1278.    <title>#623 Wirraway</title>
1279.    <summary>Building the Special Hobby 1:72 CAC Wirraway, as stationed at Seletar in 1941 - just up the road from me (no electronics)</summary>
1280.    <g:image_link>https://leap.tardate.com/Kraft/RAAF/Wirraway/assets/Wirraway_build.jpg</g:image_link>
1281.    <category term="scale models"/>
1282.    <category term="Craft"/>
1283.  </entry>
1284.  <entry>
1285.    <id>https://leap.tardate.com/Kraft/Soviet/T34-1942/</id>
1286.    <link href="https://leap.tardate.com/Kraft/Soviet/T34-1942/"/>
1287.    <updated>2023-05-02T14:10:56Z</updated>
1288.    <title>#622 T34 1942</title>
1289.    <summary>Building the Trumpeter 1:72 T-34 Model 1942 with some CMK figures (no electronics - just practicing weathering at small scale)</summary>
1290.    <g:image_link>https://leap.tardate.com/Kraft/Soviet/T34-1942/assets/T34-1942_build.jpg</g:image_link>
1291.    <category term="scale models"/>
1292.    <category term="Craft"/>
1293.    <category term="AFV"/>
1294.  </entry>
1295.  <entry>
1296.    <id>https://leap.tardate.com/Kraft/KubelMagic/</id>
1297.    <link href="https://leap.tardate.com/Kraft/KubelMagic/"/>
1298.    <updated>2022-01-30T12:37:32Z</updated>
1299.    <title>#621 KubelMagic</title>
1300.    <summary>A walnut, Brengun 1:144 Kübelwagen and a miniaturised SMD version of a BJT oscillator - and with a bit of practice, some close-up model magic.</summary>
1301.    <g:image_link>https://leap.tardate.com/Kraft/KubelMagic/assets/KubelMagic_build.jpg</g:image_link>
1302.    <category term="LED"/>
1303.    <category term="Oscillators"/>
1304.    <category term="scale models"/>
1305.    <category term="Craft"/>
1306.  </entry>
1307.  <entry>
1308.    <id>https://leap.tardate.com/Electronics101/SMDPracticeBoards/Star/</id>
1309.    <link href="https://leap.tardate.com/Electronics101/SMDPracticeBoards/Star/"/>
1310.    <updated>2022-01-20T14:43:57Z</updated>
1311.    <title>#620 Glowing Star SMD Practice Board</title>
1312.    <summary>Testing the Five-Pointed Star SMD Practice Board with LM358 oscillator LED effects.</summary>
1313.    <g:image_link>https://leap.tardate.com/Electronics101/SMDPracticeBoards/Star/assets/Star_build.jpg</g:image_link>
1314.    <category term="SMD"/>
1315.    <category term="OpAmp"/>
1316.  </entry>
1317.  <entry>
1318.    <id>https://leap.tardate.com/Audio/SpeechSynthesis/SYN6288Module/</id>
1319.    <link href="https://leap.tardate.com/Audio/SpeechSynthesis/SYN6288Module/"/>
1320.    <updated>2022-01-19T15:20:07Z</updated>
1321.    <title>#619 SYN6288 Module</title>
1322.    <summary>Investigating the SYN6288 Chinese text to speech module with simple Arduino demonstration.</summary>
1323.    <g:image_link>https://leap.tardate.com/Audio/SpeechSynthesis/SYN6288Module/assets/SYN6288Module_build.jpg</g:image_link>
1324.    <category term="Arduino"/>
1325.    <category term="Speech Synthesis"/>
1326.    <category term="Audio"/>
1327.  </entry>
1328.  <entry>
1329.    <id>https://leap.tardate.com/Kraft/PLAAF/J10S/</id>
1330.    <link href="https://leap.tardate.com/Kraft/PLAAF/J10S/"/>
1331.    <updated>2022-01-18T15:15:51Z</updated>
1332.    <title>#618 Chengdu J-10S</title>
1333.    <summary>Building the Trumpeter 1:72 Chengdu J-10S in early Ba Yi Aerobatics Team colours. No electronics in this one.</summary>
1334.    <g:image_link>https://leap.tardate.com/Kraft/PLAAF/J10S/assets/J10S_build.jpg</g:image_link>
1335.    <category term="scale models"/>
1336.    <category term="Craft"/>
1337.  </entry>
1338.  <entry>
1339.    <id>https://leap.tardate.com/Electronics101/WeevilEyeKit/</id>
1340.    <link href="https://leap.tardate.com/Electronics101/WeevilEyeKit/"/>
1341.    <updated>2022-01-18T14:25:28Z</updated>
1342.    <title>#617 Weevil Eye Kit</title>
1343.    <summary>Building a simple but fun light-sensitive DIY kit, a perfect gift for someone learning to solder.</summary>
1344.    <g:image_link>https://leap.tardate.com/Electronics101/WeevilEyeKit/assets/WeevilEyeKit_build.jpg</g:image_link>
1345.    <category term="LDR"/>
1346.    <category term="LED"/>
1347.  </entry>
1348.  <entry>
1349.    <id>https://leap.tardate.com/Electronics101/LED/CandleEmulator/</id>
1350.    <link href="https://leap.tardate.com/Electronics101/LED/CandleEmulator/"/>
1351.    <updated>2022-01-02T06:46:45Z</updated>
1352.    <title>#616 Candle Emulator</title>
1353.    <summary>An Arduino LED candle emulation</summary>
1354.    <g:image_link>https://leap.tardate.com/Electronics101/LED/CandleEmulator/assets/CandleEmulator_build.jpg</g:image_link>
1355.    <category term="LED"/>
1356.    <category term="Arduino"/>
1357.  </entry>
1358.  <entry>
1359.    <id>https://leap.tardate.com/Kraft/Soviet/Polikarpov/I-153/</id>
1360.    <link href="https://leap.tardate.com/Kraft/Soviet/Polikarpov/I-153/"/>
1361.    <updated>2023-05-02T14:10:56Z</updated>
1362.    <title>#615 I-153</title>
1363.    <summary>Building the Polikarpov I-153 as used by the Guomindang Air Force - ICM 1:72 kit 72076</summary>
1364.    <g:image_link>https://leap.tardate.com/Kraft/Soviet/Polikarpov/I-153/assets/I-153_build.jpg</g:image_link>
1365.    <category term="scale models"/>
1366.    <category term="Craft"/>
1367.  </entry>
1368.  <entry>
1369.    <id>https://leap.tardate.com/Kraft/ForceZ/HMSPrinceOfWales/</id>
1370.    <link href="https://leap.tardate.com/Kraft/ForceZ/HMSPrinceOfWales/"/>
1371.    <updated>2021-12-28T03:50:10Z</updated>
1372.    <title>#614 HMS Prince Of Wales</title>
1373.    <summary>Remembering Force Z with a build of the HMS Prince Of Wales from the Tamiya 1:700 waterline series. No electronics for this one.</summary>
1374.    <g:image_link>https://leap.tardate.com/Kraft/ForceZ/HMSPrinceOfWales/assets/HMSPrinceOfWales_build.jpg</g:image_link>
1375.    <category term="scale models"/>
1376.    <category term="Craft"/>
1377.  </entry>
1378.  <entry>
1379.    <id>https://leap.tardate.com/Kraft/TornadoECR/</id>
1380.    <link href="https://leap.tardate.com/Kraft/TornadoECR/"/>
1381.    <updated>2021-12-22T05:37:57Z</updated>
1382.    <title>#613 Tornado ECR</title>
1383.    <summary>Building the 1:144 Tornado ECR from Revell with wireless LEDs in the Tailpipe.</summary>
1384.    <g:image_link>https://leap.tardate.com/Kraft/TornadoECR/assets/TornadoECR_build.jpg</g:image_link>
1385.    <category term="scale models"/>
1386.    <category term="Craft"/>
1387.    <category term="Wireless"/>
1388.    <category term="LED"/>
1389.  </entry>
1390.  <entry>
1391.    <id>https://leap.tardate.com/Equipment/HiLoLogicTesterKit/</id>
1392.    <link href="https://leap.tardate.com/Equipment/HiLoLogicTesterKit/"/>
1393.    <updated>2021-12-03T18:20:12Z</updated>
1394.    <title>#612 Hi-Lo Logic Tester Kit</title>
1395.    <summary>Building a neat little hi/low logic indicator kit using a CD4511 and a few passives; also fixing a circuit bug that prevents the power indicator from working.</summary>
1396.    <g:image_link>https://leap.tardate.com/Equipment/HiLoLogicTesterKit/assets/HiLoLogicTesterKit_build.jpg</g:image_link>
1397.    <category term="CMOS/TTL"/>
1398.    <category term="Digital Logic"/>
1399.  </entry>
1400.  <entry>
1401.    <id>https://leap.tardate.com/Electronics101/Power/DicksonChargePump/HalfWave/</id>
1402.    <link href="https://leap.tardate.com/Electronics101/Power/DicksonChargePump/HalfWave/"/>
1403.    <updated>2021-11-30T13:52:48Z</updated>
1404.    <title>#611 Half-Wave Dickson Charge Pump</title>
1405.    <summary>Zener-regulated 12V Dickson Charge Pump driven with Arduino PWM using a single pin.</summary>
1406.    <g:image_link>https://leap.tardate.com/Electronics101/Power/DicksonChargePump/HalfWave/assets/HalfWave_build.jpg</g:image_link>
1407.    <category term="Arduino"/>
1408.    <category term="Power"/>
1409.  </entry>
1410.  <entry>
1411.    <id>https://leap.tardate.com/Kraft/ThatIsNotaToy/</id>
1412.    <link href="https://leap.tardate.com/Kraft/ThatIsNotaToy/"/>
1413.    <updated>2021-11-24T14:02:34Z</updated>
1414.    <title>#611 That is not a toy, my boy!</title>
1415.    <summary>A somewhat unconventional diorama featuring an Airfix 1:35 M7 Priest, some MasterBox figures and a bonsai tree!</summary>
1416.    <g:image_link>https://leap.tardate.com/Kraft/ThatIsNotaToy/assets/ThatIsNotaToy_build.jpg</g:image_link>
1417.    <category term="Craft"/>
1418.    <category term="scale models"/>
1419.    <category term="AFV"/>
1420.  </entry>
1421.  <entry>
1422.    <id>https://leap.tardate.com/Electronics101/555Timer/LaserRay/</id>
1423.    <link href="https://leap.tardate.com/Electronics101/555Timer/LaserRay/"/>
1424.    <updated>2021-11-24T13:17:38Z</updated>
1425.    <title>#610 LaserRay</title>
1426.    <summary>Testing a laser ray light and sound effectbased on the 555 timer</summary>
1427.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/LaserRay/assets/LaserRay_build.jpg</g:image_link>
1428.    <category term="555 Timer"/>
1429.    <category term="Audio"/>
1430.    <category term="LED"/>
1431.  </entry>
1432.  <entry>
1433.    <id>https://leap.tardate.com/Kraft/PLAAF/JF17/</id>
1434.    <link href="https://leap.tardate.com/Kraft/PLAAF/JF17/"/>
1435.    <updated>2023-05-02T14:10:54Z</updated>
1436.    <title>#609 JF-17</title>
1437.    <summary>Buidling the JF-17 Thunder with the striking livery it sported during the 2007 Pakistan Day Joint Services Parade. No electronics in this one.</summary>
1438.    <g:image_link>https://leap.tardate.com/Kraft/PLAAF/JF17/assets/JF17_build.jpg</g:image_link>
1439.    <category term="scale models"/>
1440.    <category term="Craft"/>
1441.  </entry>
1442.  <entry>
1443.    <id>https://leap.tardate.com/playground/LedCurrentControl/</id>
1444.    <link href="https://leap.tardate.com/playground/LedCurrentControl/"/>
1445.    <updated>2021-10-18T14:55:20Z</updated>
1446.    <title>#608 LED Current Control</title>
1447.    <summary>Using an Arduino PWM signal for smooth current-controlled LED dimming with a current mirror</summary>
1448.    <g:image_link>https://leap.tardate.com/playground/LedCurrentControl/assets/LedCurrentControl_build.jpg</g:image_link>
1449.    <category term="LED"/>
1450.    <category term="Arduino"/>
1451.  </entry>
1452.  <entry>
1453.    <id>https://leap.tardate.com/Kraft/WP/PZL/P7a/</id>
1454.    <link href="https://leap.tardate.com/Kraft/WP/PZL/P7a/"/>
1455.    <updated>2023-05-02T14:10:57Z</updated>
1456.    <title>#607 PZL P.7a</title>
1457.    <summary>Building the Arma Hobby PZL P.7a 1:72 expert set.  No electronics added - just enjoying this wonderfully detailed kit.</summary>
1458.    <g:image_link>https://leap.tardate.com/Kraft/WP/PZL/P7a/assets/P7a_build.jpg</g:image_link>
1459.    <category term="scale models"/>
1460.    <category term="Craft"/>
1461.  </entry>
1462.  <entry>
1463.    <id>https://leap.tardate.com/Kraft/BritishArmy/Firefly/</id>
1464.    <link href="https://leap.tardate.com/Kraft/BritishArmy/Firefly/"/>
1465.    <updated>2023-05-02T14:10:52Z</updated>
1466.    <title>#606 Firefly</title>
1467.    <summary>Practicing finishing techniques on the Airfix 1:72 Sherman Firefly, then animating the turret with some ATtiny85 magic</summary>
1468.    <g:image_link>https://leap.tardate.com/Kraft/BritishArmy/Firefly/assets/Firefly_build.jpg</g:image_link>
1469.    <category term="scale models"/>
1470.    <category term="Craft"/>
1471.    <category term="Arduino"/>
1472.    <category term="AVR"/>
1473.    <category term="Sensor"/>
1474.    <category term="OpAmp"/>
1475.    <category term="Servo"/>
1476.    <category term="AFV"/>
1477.  </entry>
1478.  <entry>
1479.    <id>https://leap.tardate.com/playground/ATtiny/AnalogComparator/</id>
1480.    <link href="https://leap.tardate.com/playground/ATtiny/AnalogComparator/"/>
1481.    <updated>2021-09-16T18:16:48Z</updated>
1482.    <title>#605 ATtiny Analog Comparator</title>
1483.    <summary>Testing sound-triggered interrupts with the ATtiny85 built-in analog comparator</summary>
1484.    <g:image_link>https://leap.tardate.com/playground/ATtiny/AnalogComparator/assets/AnalogComparator_build.jpg</g:image_link>
1485.    <category term="Arduino"/>
1486.    <category term="AVR"/>
1487.    <category term="Sensor"/>
1488.    <category term="OpAmp"/>
1489.  </entry>
1490.  <entry>
1491.    <id>https://leap.tardate.com/Kinetics/ServoMotors/MiniLinearServos/</id>
1492.    <link href="https://leap.tardate.com/Kinetics/ServoMotors/MiniLinearServos/"/>
1493.    <updated>2021-09-16T15:58:35Z</updated>
1494.    <title>#604 Mini Linear Servos</title>
1495.    <summary>Testing some mini/micro linear servo motors with an ATtiny85</summary>
1496.    <g:image_link>https://leap.tardate.com/Kinetics/ServoMotors/MiniLinearServos/assets/MiniLinearServos_build.jpg</g:image_link>
1497.    <category term="Arduino"/>
1498.    <category term="AVR"/>
1499.    <category term="Servo"/>
1500.  </entry>
1501.  <entry>
1502.    <id>https://leap.tardate.com/Kinetics/ServoMotors/ATTinyServo/</id>
1503.    <link href="https://leap.tardate.com/Kinetics/ServoMotors/ATTinyServo/"/>
1504.    <updated>2021-09-15T17:34:42Z</updated>
1505.    <title>#603 ATTiny Servo Drive</title>
1506.    <summary>Testing various methods and libraries for driving servo motors with an ATtiny85</summary>
1507.    <g:image_link>https://leap.tardate.com/Kinetics/ServoMotors/ATTinyServo/assets/ATTinyServo_build.jpg</g:image_link>
1508.    <category term="Arduino"/>
1509.    <category term="AVR"/>
1510.    <category term="Servo"/>
1511.  </entry>
1512.  <entry>
1513.    <id>https://leap.tardate.com/Kraft/ForceZ/HMASVampire/</id>
1514.    <link href="https://leap.tardate.com/Kraft/ForceZ/HMASVampire/"/>
1515.    <updated>2021-09-12T14:07:06Z</updated>
1516.    <title>#602 HMAS Vampire</title>
1517.    <summary>Remembering Force Z with a build of the HMAS Vampire from the Tamiya 1:700 waterline series. No electronics for this one.</summary>
1518.    <g:image_link>https://leap.tardate.com/Kraft/ForceZ/HMASVampire/assets/HMASVampire_build.jpg</g:image_link>
1519.    <category term="scale models"/>
1520.    <category term="Craft"/>
1521.  </entry>
1522.  <entry>
1523.    <id>https://leap.tardate.com/Kinetics/ServoMotors/LowPowerMiniServos/</id>
1524.    <link href="https://leap.tardate.com/Kinetics/ServoMotors/LowPowerMiniServos/"/>
1525.    <updated>2021-09-12T11:16:07Z</updated>
1526.    <title>#601 Low Power Mini Servos</title>
1527.    <summary>Testing a few low power mini servo motors with an Arduino and MOSFET level shifter</summary>
1528.    <g:image_link>https://leap.tardate.com/Kinetics/ServoMotors/LowPowerMiniServos/assets/LowPowerMiniServos_build.jpg</g:image_link>
1529.    <category term="Servo"/>
1530.    <category term="Arduino"/>
1531.  </entry>
1532.  <entry>
1533.    <id>https://leap.tardate.com/Kraft/RedEyeSpaceMarine/</id>
1534.    <link href="https://leap.tardate.com/Kraft/RedEyeSpaceMarine/"/>
1535.    <updated>2021-09-05T16:33:45Z</updated>
1536.    <title>#600 The Red Eyed Space Marine</title>
1537.    <summary>Inspired by all the mad miniature skills out there these days, I delve into the world of space marines with eyes that glow - no wires or batteries</summary>
1538.    <g:image_link>https://leap.tardate.com/Kraft/RedEyeSpaceMarine/assets/RedEyeSpaceMarine_build.jpg</g:image_link>
1539.    <category term="scale models"/>
1540.    <category term="Craft"/>
1541.    <category term="Wireless"/>
1542.    <category term="LED"/>
1543.  </entry>
1544.  <entry>
1545.    <id>https://leap.tardate.com/Kraft/IJN/KawanishiK5Y1/</id>
1546.    <link href="https://leap.tardate.com/Kraft/IJN/KawanishiK5Y1/"/>
1547.    <updated>2024-04-10T03:27:55Z</updated>
1548.    <title>#599 Kawanishi K5Y1 Tensegrity Stand</title>
1549.    <summary>Experimenting with tensegrity model mounting, using as a subject the ARII 1:72 Kawanishi K5Y1 赤とんぼ (Willow)</summary>
1550.    <g:image_link>https://leap.tardate.com/Kraft/IJN/KawanishiK5Y1/assets/KawanishiK5Y1_build.jpg</g:image_link>
1551.    <category term="scale models"/>
1552.    <category term="Craft"/>
1553.  </entry>
1554.  <entry>
1555.    <id>https://leap.tardate.com/Electronics101/TemperatureSensors/LM335/</id>
1556.    <link href="https://leap.tardate.com/Electronics101/TemperatureSensors/LM335/"/>
1557.    <updated>2021-08-25T16:09:45Z</updated>
1558.    <title>#598 LM335 Temperature Sensor</title>
1559.    <summary>Reading ambient temperature with the LM335 and an Arduino without output display on a Nokia 5110 LCD</summary>
1560.    <g:image_link>https://leap.tardate.com/Electronics101/TemperatureSensors/LM335/assets/LM335_build.jpg</g:image_link>
1561.    <category term="Sensors"/>
1562.    <category term="LM335"/>
1563.    <category term="LCD"/>
1564.    <category term="Arduino"/>
1565.  </entry>
1566.  <entry>
1567.    <id>https://leap.tardate.com/Electronics101/Power/WirelessLed/</id>
1568.    <link href="https://leap.tardate.com/Electronics101/Power/WirelessLed/"/>
1569.    <updated>2021-08-19T14:45:20Z</updated>
1570.    <title>#597 Simple Wireless Power LED</title>
1571.    <summary>Researching wireless power transmission and building a simpel wirelessly-powered LED demonstration</summary>
1572.    <g:image_link>https://leap.tardate.com/Electronics101/Power/WirelessLed/assets/WirelessLed_build.jpg</g:image_link>
1573.    <category term="Power"/>
1574.    <category term="Wireless"/>
1575.    <category term="LED"/>
1576.  </entry>
1577.  <entry>
1578.    <id>https://leap.tardate.com/Electronics101/PiezoBuzzers/OpAmpDriver/</id>
1579.    <link href="https://leap.tardate.com/Electronics101/PiezoBuzzers/OpAmpDriver/"/>
1580.    <updated>2021-08-17T08:26:06Z</updated>
1581.    <title>#596 OpAmp Piezo Driver</title>
1582.    <summary>Testing a circuit for driving a piezoelectric transducer for sound output with a TL072 opamp oscillator</summary>
1583.    <g:image_link>https://leap.tardate.com/Electronics101/PiezoBuzzers/OpAmpDriver/assets/OpAmpDriver_build.jpg</g:image_link>
1584.    <category term="Oscillators"/>
1585.    <category term="Crystal"/>
1586.    <category term="Audio"/>
1587.  </entry>
1588.  <entry>
1589.    <id>https://leap.tardate.com/Electronics101/TemperatureSensors/LM35/</id>
1590.    <link href="https://leap.tardate.com/Electronics101/TemperatureSensors/LM35/"/>
1591.    <updated>2021-08-17T08:26:06Z</updated>
1592.    <title>#595 LM35 Temperature Sensor</title>
1593.    <summary>Reading ambient temperature with the LM35 and an Arduino without output display on a Nokia 5110 LCD</summary>
1594.    <g:image_link>https://leap.tardate.com/Electronics101/TemperatureSensors/LM35/assets/LM35_build.jpg</g:image_link>
1595.    <category term="Sensors"/>
1596.    <category term="LM35"/>
1597.    <category term="LCD"/>
1598.    <category term="Arduino"/>
1599.  </entry>
1600.  <entry>
1601.    <id>https://leap.tardate.com/Kraft/IJN/i16i58/</id>
1602.    <link href="https://leap.tardate.com/Kraft/IJN/i16i58/"/>
1603.    <updated>2023-05-02T14:10:54Z</updated>
1604.    <title>#594 I-16 and I-58</title>
1605.    <summary>Building the Tamiya 1:700 I-16 and I-58 waterline kit 31453. No electronics in this one - more an experiment in rust and water effects.</summary>
1606.    <g:image_link>https://leap.tardate.com/Kraft/IJN/i16i58/assets/i16i58_build.jpg</g:image_link>
1607.    <category term="scale models"/>
1608.    <category term="Craft"/>
1609.  </entry>
1610.  <entry>
1611.    <id>https://leap.tardate.com/Kraft/BritishArmy/25pdr/</id>
1612.    <link href="https://leap.tardate.com/Kraft/BritishArmy/25pdr/"/>
1613.    <updated>2023-05-02T14:10:52Z</updated>
1614.    <title>#593 25 Pounder Field Gun and Quad</title>
1615.    <summary>Building the Airfix 1:76 scale 25 Pounder Field Gun and Quad A01305. No electronics in this one yet.</summary>
1616.    <g:image_link>https://leap.tardate.com/Kraft/BritishArmy/25pdr/assets/25pdr_build.jpg</g:image_link>
1617.    <category term="scale models"/>
1618.    <category term="Craft"/>
1619.    <category term="AFV"/>
1620.  </entry>
1621.  <entry>
1622.    <id>https://leap.tardate.com/Kraft/snowflake/lamp/</id>
1623.    <link href="https://leap.tardate.com/Kraft/snowflake/lamp/"/>
1624.    <updated>2021-07-20T17:22:12Z</updated>
1625.    <title>#592 Snowflake Lamp</title>
1626.    <summary>Finding a new home for some @LuckyResistor Snow Flake boards in a lamp stand</summary>
1627.    <g:image_link>https://leap.tardate.com/Kraft/snowflake/lamp/assets/lamp_build.jpg</g:image_link>
1628.    <category term="Craft"/>
1629.    <category term="ARM"/>
1630.    <category term="LED"/>
1631.  </entry>
1632.  <entry>
1633.    <id>https://leap.tardate.com/Kraft/TydiriumStrobe/Module/</id>
1634.    <link href="https://leap.tardate.com/Kraft/TydiriumStrobe/Module/"/>
1635.    <updated>2021-04-06T16:55:10Z</updated>
1636.    <title>#591 Tydirium Strobe Module</title>
1637.    <summary>Packaging the ATtiny85 Lambda-class shuttle Tydirium navigation strobe circuit as a small board that can be added to an existing lighting setup.</summary>
1638.    <g:image_link>https://leap.tardate.com/Kraft/TydiriumStrobe/Module/assets/Module_build.jpg</g:image_link>
1639.    <category term="Arduino"/>
1640.    <category term="ATmel"/>
1641.    <category term="LED"/>
1642.  </entry>
1643.  <entry>
1644.    <id>https://leap.tardate.com/Kraft/RoyalNavy/TigerMoth/</id>
1645.    <link href="https://leap.tardate.com/Kraft/RoyalNavy/TigerMoth/"/>
1646.    <updated>2023-05-02T14:10:56Z</updated>
1647.    <title>#590 Tiger Moth</title>
1648.    <summary>Royal Navy Fleet Air Arm Tiger Moth XL717 heading out over the rocky shors near Abbotsinch, Scotland - a small vignette featuring the Airfix De Havilland DH.82a Tiger Moth 1:72 A02106 with a custom motorised propeller</summary>
1649.    <g:image_link>https://leap.tardate.com/Kraft/RoyalNavy/TigerMoth/assets/TigerMoth_build.jpg</g:image_link>
1650.    <category term="scale models"/>
1651.    <category term="Craft"/>
1652.    <category term="motor"/>
1653.    <category term="555 Timer"/>
1654.  </entry>
1655.  <entry>
1656.    <id>https://leap.tardate.com/Kraft/TydiriumStrobe/</id>
1657.    <link href="https://leap.tardate.com/Kraft/TydiriumStrobe/"/>
1658.    <updated>2021-03-24T20:38:51Z</updated>
1659.    <title>#589 Tydirium Strobe</title>
1660.    <summary>Figuring out the navigation light strobe frequency of the Lambda-class shuttle Tydirium and building a freeform circuit sculpture to demonstrate the effects (running an ATtiny85 on 3V)</summary>
1661.    <g:image_link>https://leap.tardate.com/Kraft/TydiriumStrobe/assets/TydiriumStrobe_build.jpg</g:image_link>
1662.    <category term="Arduino"/>
1663.    <category term="ATmel"/>
1664.    <category term="LED"/>
1665.    <category term="Circuit Sculpture"/>
1666.    <category term="Freeform"/>
1667.  </entry>
1668.  <entry>
1669.    <id>https://leap.tardate.com/Kraft/NanChangY5/</id>
1670.    <link href="https://leap.tardate.com/Kraft/NanChangY5/"/>
1671.    <updated>2021-03-21T13:23:08Z</updated>
1672.    <title>#588 Nanchang Y-5</title>
1673.    <summary>A simple build of the Antonov An-2 Colt/Nanchang Y-5 1:72 model 01602 from Trumpeter. I've spied opportunities for electronics in this kit but not added any yet.</summary>
1674.    <g:image_link>https://leap.tardate.com/Kraft/NanChangY5/assets/NanChangY5_build.jpg</g:image_link>
1675.    <category term="scale models"/>
1676.    <category term="Craft"/>
1677.  </entry>
1678.  <entry>
1679.    <id>https://leap.tardate.com/playground/RgbOhmMeter/</id>
1680.    <link href="https://leap.tardate.com/playground/RgbOhmMeter/"/>
1681.    <updated>2021-03-17T17:37:59Z</updated>
1682.    <title>#587 RGB Auto-ranging Ohmmeter</title>
1683.    <summary>An auto-ranging ohmmeter that uses an LCD and RGB LEDs to display the best-matched E24 standard resistor color code for the measured resistance</summary>
1684.    <g:image_link>https://leap.tardate.com/playground/RgbOhmMeter/assets/RgbOhmMeter_build.jpg</g:image_link>
1685.    <category term="Arduino"/>
1686.    <category term="LED"/>
1687.    <category term="Sensors"/>
1688.  </entry>
1689.  <entry>
1690.    <id>https://leap.tardate.com/ESP8266/RgbLedFiddler/</id>
1691.    <link href="https://leap.tardate.com/ESP8266/RgbLedFiddler/"/>
1692.    <updated>2021-03-16T16:45:49Z</updated>
1693.    <title>#586 RGB LED Fiddler</title>
1694.    <summary>Using an HTML5 color picker on a web page hosted from an ESP8266 module (ESP12) to fine tune the color settings for an RGB LED.</summary>
1695.    <g:image_link>https://leap.tardate.com/ESP8266/RgbLedFiddler/assets/RgbLedFiddler_build.jpg</g:image_link>
1696.    <category term="LED"/>
1697.    <category term="ESP8266"/>
1698.  </entry>
1699.  <entry>
1700.    <id>https://leap.tardate.com/Electronics101/DS1822/</id>
1701.    <link href="https://leap.tardate.com/Electronics101/DS1822/"/>
1702.    <updated>2021-03-12T15:12:34Z</updated>
1703.    <title>#585 DS1822 1-Wire Reading</title>
1704.    <summary>Basic interrogation of a DS1822 using 1-wire protocol and results display on a Nokia 5110 LCD</summary>
1705.    <g:image_link>https://leap.tardate.com/Electronics101/DS1822/assets/DS1822_build.jpg</g:image_link>
1706.    <category term="Sensors"/>
1707.    <category term="Arduino"/>
1708.    <category term="LCD"/>
1709.  </entry>
1710.  <entry>
1711.    <id>https://leap.tardate.com/Electronics101/LED/HPDL1414/</id>
1712.    <link href="https://leap.tardate.com/Electronics101/LED/HPDL1414/"/>
1713.    <updated>2021-03-03T13:09:51Z</updated>
1714.    <title>#584 HPDL1414</title>
1715.    <summary>Test driving a retro HPDL-1414 4-digit GaAsP display with an Arduino</summary>
1716.    <g:image_link>https://leap.tardate.com/Electronics101/LED/HPDL1414/assets/HPDL1414_build.jpg</g:image_link>
1717.    <category term="LED"/>
1718.  </entry>
1719.  <entry>
1720.    <id>https://leap.tardate.com/Electronics101/LED/YSJ181222/</id>
1721.    <link href="https://leap.tardate.com/Electronics101/LED/YSJ181222/"/>
1722.    <updated>2021-03-02T15:09:56Z</updated>
1723.    <title>#583 LED Sequencer Module</title>
1724.    <summary>Testing a simple 6xLED sequencer module (YuSiJie 宇思捷 YSJ181222)</summary>
1725.    <g:image_link>https://leap.tardate.com/Electronics101/LED/YSJ181222/assets/YSJ181222_build.jpg</g:image_link>
1726.    <category term="LED"/>
1727.  </entry>
1728.  <entry>
1729.    <id>https://leap.tardate.com/Kraft/Wehrmacht/Schnellboot/</id>
1730.    <link href="https://leap.tardate.com/Kraft/Wehrmacht/Schnellboot/"/>
1731.    <updated>2023-05-02T14:10:58Z</updated>
1732.    <title>#582 Schnellboot</title>
1733.    <summary>Building the Bronco NB5004 1/350 German S-100 Class Schnellboot with a dockside diorama with LED effects</summary>
1734.    <g:image_link>https://leap.tardate.com/Kraft/Wehrmacht/Schnellboot/assets/Schnellboot_build.jpg</g:image_link>
1735.    <category term="scale models"/>
1736.    <category term="Craft"/>
1737.    <category term="LED"/>
1738.    <category term="Oscillators"/>
1739.  </entry>
1740.  <entry>
1741.    <id>https://leap.tardate.com/Kraft/PLAN/Type054A/</id>
1742.    <link href="https://leap.tardate.com/Kraft/PLAN/Type054A/"/>
1743.    <updated>2022-01-18T15:15:51Z</updated>
1744.    <title>#581 PLA Navy Type 054A</title>
1745.    <summary>Building the Trumpeter 1:700 PLAN 054A Frigate (no electronics - yet)</summary>
1746.    <g:image_link>https://leap.tardate.com/Kraft/PLAN/Type054A/assets/Type054A_build.jpg</g:image_link>
1747.    <category term="scale models"/>
1748.    <category term="Craft"/>
1749.  </entry>
1750.  <entry>
1751.    <id>https://leap.tardate.com/Kraft/RWD8DWL/</id>
1752.    <link href="https://leap.tardate.com/Kraft/RWD8DWL/"/>
1753.    <updated>2021-02-10T15:41:54Z</updated>
1754.    <title>#580 RWD-8 DWL</title>
1755.    <summary>A simple build of the RWD-8 DWL Polish trainer 1:72 kit 72502 from IBG Models (no electronics - yet)</summary>
1756.    <g:image_link>https://leap.tardate.com/Kraft/RWD8DWL/assets/RWD8DWL_build.jpg</g:image_link>
1757.    <category term="scale models"/>
1758.    <category term="Craft"/>
1759.  </entry>
1760.  <entry>
1761.    <id>https://leap.tardate.com/Kraft/PLA/CA30FuelTransporter/</id>
1762.    <link href="https://leap.tardate.com/Kraft/PLA/CA30FuelTransporter/"/>
1763.    <updated>2023-05-02T14:10:54Z</updated>
1764.    <title>#579 Jie Fang CA-30 Fuel Truck</title>
1765.    <summary>A simple build of the 解放 Jie Fang CA-30 Fuel Transporter 1:72 model 01104 from Trumpeter (no electronics - yet).</summary>
1766.    <g:image_link>https://leap.tardate.com/Kraft/PLA/CA30FuelTransporter/assets/CA30FuelTransporter_build.jpg</g:image_link>
1767.    <category term="scale models"/>
1768.    <category term="Craft"/>
1769.  </entry>
1770.  <entry>
1771.    <id>https://leap.tardate.com/Kraft/RAF/Typhoon/</id>
1772.    <link href="https://leap.tardate.com/Kraft/RAF/Typhoon/"/>
1773.    <updated>2023-05-02T14:10:55Z</updated>
1774.    <title>#578 Hawker Typhoon</title>
1775.    <summary>Building the Airfix 1:72 Hawker Typhoon Mk.Ib, electrifying it with an engine and rocket effects and displaying it with a ground attack vignette</summary>
1776.    <g:image_link>https://leap.tardate.com/Kraft/RAF/Typhoon/assets/Typhoon_build.jpg</g:image_link>
1777.    <category term="scale models"/>
1778.    <category term="Craft"/>
1779.    <category term="LED"/>
1780.    <category term="motor"/>
1781.  </entry>
1782.  <entry>
1783.    <id>https://leap.tardate.com/Kraft/YataiRamenDoorbell/</id>
1784.    <link href="https://leap.tardate.com/Kraft/YataiRamenDoorbell/"/>
1785.    <updated>2024-04-10T03:27:55Z</updated>
1786.    <title>#577 屋台ラーメン The Yatai Ramen Doorbell</title>
1787.    <summary>A wireless doorbell based on an Arii (Microace) Yatai Ramen model with added lights and sound</summary>
1788.    <g:image_link>https://leap.tardate.com/Kraft/YataiRamenDoorbell/assets/YataiRamenDoorbell_build.jpg</g:image_link>
1789.    <category term="scale models"/>
1790.    <category term="Craft"/>
1791.    <category term="Audio"/>
1792.    <category term="LED"/>
1793.  </entry>
1794.  <entry>
1795.    <id>https://leap.tardate.com/Equipment/SprayBooth/</id>
1796.    <link href="https://leap.tardate.com/Equipment/SprayBooth/"/>
1797.    <updated>2021-01-02T08:40:53Z</updated>
1798.    <title>#576 Spray Booth</title>
1799.    <summary>Building a $10 spray booth for light airbrush spray painting and soldering</summary>
1800.    <g:image_link>https://leap.tardate.com/Equipment/SprayBooth/assets/SprayBooth_build.jpg</g:image_link>
1801.    <category term="Tools"/>
1802.  </entry>
1803.  <entry>
1804.    <id>https://leap.tardate.com/Audio/MotorizedMusicBox/</id>
1805.    <link href="https://leap.tardate.com/Audio/MotorizedMusicBox/"/>
1806.    <updated>2021-01-02T08:40:53Z</updated>
1807.    <title>#575 Motorized Music Box</title>
1808.    <summary>A quick test of motorizing a hand-cranked music box</summary>
1809.    <g:image_link>https://leap.tardate.com/Audio/MotorizedMusicBox/assets/MotorizedMusicBox_build.jpg</g:image_link>
1810.    <category term="Audio"/>
1811.    <category term="Motor"/>
1812.  </entry>
1813.  <entry>
1814.    <id>https://leap.tardate.com/Audio/MicroSD/WavePlayer/</id>
1815.    <link href="https://leap.tardate.com/Audio/MicroSD/WavePlayer/"/>
1816.    <updated>2020-12-20T15:32:44Z</updated>
1817.    <title>#574 MicroSD WAV Player</title>
1818.    <summary>A basic demonstration of playing a sound file (WAV) from an SD card with an Arduino</summary>
1819.    <g:image_link>https://leap.tardate.com/Audio/MicroSD/WavePlayer/assets/WavePlayer_build.jpg</g:image_link>
1820.    <category term="Audio"/>
1821.    <category term="Arduino"/>
1822.    <category term="SD"/>
1823.  </entry>
1824.  <entry>
1825.    <id>https://leap.tardate.com/Electronics101/555Timer/PwmMotorControl/</id>
1826.    <link href="https://leap.tardate.com/Electronics101/555Timer/PwmMotorControl/"/>
1827.    <updated>2020-11-20T14:51:31Z</updated>
1828.    <title>#573 555 PWM Motor Control</title>
1829.    <summary>Testing small DC motor control with a 555 time PWM signal</summary>
1830.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/PwmMotorControl/assets/PwmMotorControl_build.jpg</g:image_link>
1831.    <category term="555 Timer"/>
1832.    <category term="Motors"/>
1833.  </entry>
1834.  <entry>
1835.    <id>https://leap.tardate.com/Equipment/PowerMeter/</id>
1836.    <link href="https://leap.tardate.com/Equipment/PowerMeter/"/>
1837.    <updated>2020-11-15T09:53:03Z</updated>
1838.    <title>#572 PowerMeter</title>
1839.    <summary>A voltage, current and power meter using the INA226, with an ATtiny85 driving the process and displaying measurements to a 128X32 OLED display.</summary>
1840.    <g:image_link>https://leap.tardate.com/Equipment/PowerMeter/assets/PowerMeter_build.jpg</g:image_link>
1841.    <category term="Arduino"/>
1842.    <category term="AVR"/>
1843.    <category term="INA226"/>
1844.    <category term="Sensors"/>
1845.  </entry>
1846.  <entry>
1847.    <id>https://leap.tardate.com/Equipment/TraceTogetherToken/</id>
1848.    <link href="https://leap.tardate.com/Equipment/TraceTogetherToken/"/>
1849.    <updated>2020-11-11T11:29:53Z</updated>
1850.    <title>#571 TraceTogether Token</title>
1851.    <summary>Learning about the Singapore Government's latest BLE TraceTogether Token for pandemic contact tracing, and sniffing the adveritsements with a little bit of Swift code</summary>
1852.    <g:image_link>https://leap.tardate.com/Equipment/TraceTogetherToken/assets/TraceTogetherToken_build.jpg</g:image_link>
1853.    <category term="BLE"/>
1854.    <category term="ARM"/>
1855.  </entry>
1856.  <entry>
1857.    <id>https://leap.tardate.com/Electronics101/SwitchModePowerSupplies/MT3608/Breadboarded/</id>
1858.    <link href="https://leap.tardate.com/Electronics101/SwitchModePowerSupplies/MT3608/Breadboarded/"/>
1859.    <updated>2020-10-11T08:32:15Z</updated>
1860.    <title>#570 MT3608 on a Breadboard</title>
1861.    <summary>A quick breadboard test of the canonical MT3608 switch mode power supply boost converter circuit</summary>
1862.    <g:image_link>https://leap.tardate.com/Electronics101/SwitchModePowerSupplies/MT3608/Breadboarded/assets/Breadboarded_build.jpg</g:image_link>
1863.    <category term="Power"/>
1864.    <category term="SMPS"/>
1865.  </entry>
1866.  <entry>
1867.    <id>https://leap.tardate.com/playground/Power/MultiVoltageGPIO/</id>
1868.    <link href="https://leap.tardate.com/playground/Power/MultiVoltageGPIO/"/>
1869.    <updated>2020-10-05T19:58:50Z</updated>
1870.    <title>#569 Multi-voltage GPIO</title>
1871.    <summary>A PWM charge-pump approach for driving low-current 0V, 5V, 12V output levels from an Arduino GPIO pin</summary>
1872.    <g:image_link>https://leap.tardate.com/playground/Power/MultiVoltageGPIO/assets/MultiVoltageGPIO_build.jpg</g:image_link>
1873.    <category term="Arduino"/>
1874.    <category term="Power"/>
1875.  </entry>
1876.  <entry>
1877.    <id>https://leap.tardate.com/Equipment/BeepLogicProbe/</id>
1878.    <link href="https://leap.tardate.com/Equipment/BeepLogicProbe/"/>
1879.    <updated>2020-09-28T16:49:44Z</updated>
1880.    <title>#568 Beep Logic Probe</title>
1881.    <summary>Building a logic probe with audio and LED feedback, based on a design from Elektor magazine January/February 2015</summary>
1882.    <g:image_link>https://leap.tardate.com/Equipment/BeepLogicProbe/assets/BeepLogicProbe_build.jpg</g:image_link>
1883.    <category term="Digital Logic"/>
1884.    <category term="CMOS/TTL"/>
1885.    <category term="Test Equipment"/>
1886.  </entry>
1887.  <entry>
1888.    <id>https://leap.tardate.com/Radio/RandomCodePractice/</id>
1889.    <link href="https://leap.tardate.com/Radio/RandomCodePractice/"/>
1890.    <updated>2020-09-23T18:05:40Z</updated>
1891.    <title>#567 Random Code Practice</title>
1892.    <summary>A simple Morse code practice generator that prints the character and sounds the dit-dahs to a speaker. Based on a project by Glen Popiel KW5GP.</summary>
1893.    <g:image_link>https://leap.tardate.com/Radio/RandomCodePractice/assets/RandomCodePractice_build.jpg</g:image_link>
1894.    <category term="Radio"/>
1895.    <category term="CW"/>
1896.    <category term="Arduino"/>
1897.  </entry>
1898.  <entry>
1899.    <id>https://leap.tardate.com/Electronics101/DigitalLogic/4bitSynchonousCounter/</id>
1900.    <link href="https://leap.tardate.com/Electronics101/DigitalLogic/4bitSynchonousCounter/"/>
1901.    <updated>2020-09-21T13:39:07Z</updated>
1902.    <title>#566 4-bit Synchonous Counter</title>
1903.    <summary>An example 4-bit synchronous counter with tri-state output, and controls for: count enable, output enable, number load, and clear</summary>
1904.    <g:image_link>https://leap.tardate.com/Electronics101/DigitalLogic/4bitSynchonousCounter/assets/4bitSynchonousCounter_build.jpg</g:image_link>
1905.    <category term="74LS161"/>
1906.    <category term="74LS245"/>
1907.    <category term="Digital Logic"/>
1908.    <category term="CMOS/TTL"/>
1909.  </entry>
1910.  <entry>
1911.    <id>https://leap.tardate.com/Electronics101/BreadboardBling/SingleShotTrigger/</id>
1912.    <link href="https://leap.tardate.com/Electronics101/BreadboardBling/SingleShotTrigger/"/>
1913.    <updated>2020-09-20T15:37:15Z</updated>
1914.    <title>#565 Single-Shot Trigger</title>
1915.    <summary>A debounced single-shot pulse generator with inverted amd non-inverted output designed for use on a breadboard</summary>
1916.    <g:image_link>https://leap.tardate.com/Electronics101/BreadboardBling/SingleShotTrigger/assets/SingleShotTrigger_build.jpg</g:image_link>
1917.    <category term="Breadboard Bling"/>
1918.    <category term="555 Timer"/>
1919.    <category term="CD4049"/>
1920.  </entry>
1921.  <entry>
1922.    <id>https://leap.tardate.com/Electronics101/555Timer/DualModeVariableFrequencyOrDuty/USBlinky/</id>
1923.    <link href="https://leap.tardate.com/Electronics101/555Timer/DualModeVariableFrequencyOrDuty/USBlinky/"/>
1924.    <updated>2020-09-19T09:46:05Z</updated>
1925.    <title>#564 USB Blinky Toy</title>
1926.    <summary>A curiously hypnotic USB blinky demonstration of a variable frequency/variable duty 555 timer circuit</summary>
1927.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/DualModeVariableFrequencyOrDuty/USBlinky/assets/USBlinky_build.jpg</g:image_link>
1928.    <category term="555 Timer"/>
1929.    <category term="Oscillators"/>
1930.    <category term="LED"/>
1931.  </entry>
1932.  <entry>
1933.    <id>https://leap.tardate.com/Electronics101/555Timer/DualModeVariableFrequencyOrDuty/</id>
1934.    <link href="https://leap.tardate.com/Electronics101/555Timer/DualModeVariableFrequencyOrDuty/"/>
1935.    <updated>2020-09-18T00:25:37Z</updated>
1936.    <title>#563 Dual Variable Mode Oscillator</title>
1937.    <summary>Testing a 555 timer astable oscillator circuit that can be switched between variable duty cycle and variable frequency</summary>
1938.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/DualModeVariableFrequencyOrDuty/assets/DualModeVariableFrequencyOrDuty_build.jpg</g:image_link>
1939.    <category term="555 Timer"/>
1940.    <category term="Oscillators"/>
1941.  </entry>
1942.  <entry>
1943.    <id>https://leap.tardate.com/Electronics101/DigitalLogic/1bitRegister/</id>
1944.    <link href="https://leap.tardate.com/Electronics101/DigitalLogic/1bitRegister/"/>
1945.    <updated>2020-09-16T21:11:00Z</updated>
1946.    <title>#562 1-bit Register</title>
1947.    <summary>Building a basic manually controlled 1-bit register that demonstrates the key features of a digital register</summary>
1948.    <g:image_link>https://leap.tardate.com/Electronics101/DigitalLogic/1bitRegister/assets/1bitRegister_build.jpg</g:image_link>
1949.    <category term="Digital Logic"/>
1950.    <category term="CMOS/TTL"/>
1951.  </entry>
1952.  <entry>
1953.    <id>https://leap.tardate.com/Electronics101/BatteryManagement/Aguhajsu1S3A/</id>
1954.    <link href="https://leap.tardate.com/Electronics101/BatteryManagement/Aguhajsu1S3A/"/>
1955.    <updated>2020-09-15T18:12:37Z</updated>
1956.    <title>#561 Aguhajsu 1S/3A BMS</title>
1957.    <summary>Reviewing and testing the Aguhajsu 1S 3A battery protection module for a single 18650 lithium-ion cell</summary>
1958.    <g:image_link>https://leap.tardate.com/Electronics101/BatteryManagement/Aguhajsu1S3A/assets/Aguhajsu1S3A_build.jpg</g:image_link>
1959.    <category term="Power"/>
1960.    <category term="BMS"/>
1961.  </entry>
1962.  <entry>
1963.    <id>https://leap.tardate.com/Kraft/HurstPointLighthouse/</id>
1964.    <link href="https://leap.tardate.com/Kraft/HurstPointLighthouse/"/>
1965.    <updated>2020-09-11T03:39:03Z</updated>
1966.    <title>#560 Hurst Point Lighthouse</title>
1967.    <summary>Building the wonderful Paper Shipwright model of the historic Hurst Point Lighthouse, and bringing it to life with a Fl(4) W 15s LED array</summary>
1968.    <g:image_link>https://leap.tardate.com/Kraft/HurstPointLighthouse/assets/HurstPointLighthouse_build.jpg</g:image_link>
1969.    <category term="555 Timer"/>
1970.    <category term="Craft"/>
1971.    <category term="LED"/>
1972.  </entry>
1973.  <entry>
1974.    <id>https://leap.tardate.com/Electronics101/555Timer/SlowGlow/</id>
1975.    <link href="https://leap.tardate.com/Electronics101/555Timer/SlowGlow/"/>
1976.    <updated>2020-09-11T03:39:03Z</updated>
1977.    <title>#559 Slow Glow</title>
1978.    <summary>A simple slowly-glowing LED effect using a 555 timer</summary>
1979.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/SlowGlow/assets/SlowGlow_build.jpg</g:image_link>
1980.    <category term="555 Timer"/>
1981.    <category term="LED"/>
1982.  </entry>
1983.  <entry>
1984.    <id>https://leap.tardate.com/Kraft/RAF/HarrierGR1/</id>
1985.    <link href="https://leap.tardate.com/Kraft/RAF/HarrierGR1/"/>
1986.    <updated>2023-05-02T14:10:55Z</updated>
1987.    <title>#558 Harrier GR.1</title>
1988.    <summary>Building the Airfix 1:72 Hawker Siddeley Harrier GR.1, electrifying it with lights and engine sounds and putting it in a cold war forward deployment diorama (somewhere in a German forest circa 1970)</summary>
1989.    <g:image_link>https://leap.tardate.com/Kraft/RAF/HarrierGR1/assets/HarrierGR1_build.jpg</g:image_link>
1990.    <category term="scale models"/>
1991.    <category term="Craft"/>
1992.    <category term="Audio"/>
1993.    <category term="LED"/>
1994.  </entry>
1995.  <entry>
1996.    <id>https://leap.tardate.com/Electronics101/LED/LED8x8Module/</id>
1997.    <link href="https://leap.tardate.com/Electronics101/LED/LED8x8Module/"/>
1998.    <updated>2020-06-30T18:37:31Z</updated>
1999.    <title>#557 LED 8x8 Module</title>
2000.    <summary>Building and using an 8x8 LED matrix with MAX7219 driver module</summary>
2001.    <g:image_link>https://leap.tardate.com/Electronics101/LED/LED8x8Module/assets/LED8x8Module_build.jpg</g:image_link>
2002.    <category term="8x8 LED"/>
2003.    <category term="Arduino"/>
2004.  </entry>
2005.  <entry>
2006.    <id>https://leap.tardate.com/Electronics101/555Timer/SRLatch/</id>
2007.    <link href="https://leap.tardate.com/Electronics101/555Timer/SRLatch/"/>
2008.    <updated>2020-06-29T16:21:37Z</updated>
2009.    <title>#556 555 SR Latch</title>
2010.    <summary>Set/Reset latch with a 555 timer</summary>
2011.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/SRLatch/assets/SRLatch_build.jpg</g:image_link>
2012.    <category term="555 Timer"/>
2013.    <category term="Digital Logic"/>
2014.  </entry>
2015.  <entry>
2016.    <id>https://leap.tardate.com/Electronics101/555Timer/BeatBot/</id>
2017.    <link href="https://leap.tardate.com/Electronics101/555Timer/BeatBot/"/>
2018.    <updated>2020-06-21T15:55:04Z</updated>
2019.    <title>#555 Beat Bot</title>
2020.    <summary>A silly little @MaywaDenki-inspired critter using multiple 555 timers and a CD4017 to play and dance to a tune</summary>
2021.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/BeatBot/assets/BeatBot_build.jpg</g:image_link>
2022.    <category term="555 Timer"/>
2023.    <category term="Kinetics"/>
2024.  </entry>
2025.  <entry>
2026.    <id>https://leap.tardate.com/Audio/AudioEffects/JetEngine/</id>
2027.    <link href="https://leap.tardate.com/Audio/AudioEffects/JetEngine/"/>
2028.    <updated>2020-06-13T17:33:18Z</updated>
2029.    <title>#554 Jet Engine Startup Effect</title>
2030.    <summary>Fine tuning an analog jet engine startup sound simulation, using a zener noise generator and CD4046 VCO</summary>
2031.    <g:image_link>https://leap.tardate.com/Audio/AudioEffects/JetEngine/assets/JetEngine_build.jpg</g:image_link>
2032.    <category term="Audio"/>
2033.  </entry>
2034.  <entry>
2035.    <id>https://leap.tardate.com/ARM/1bitsy/BareMetalBlinky/</id>
2036.    <link href="https://leap.tardate.com/ARM/1bitsy/BareMetalBlinky/"/>
2037.    <updated>2020-06-13T17:33:18Z</updated>
2038.    <title>#553 1bitsy Bare Metal C</title>
2039.    <summary>Bare metal programming the 1bitsy STM32F415RGT6 by hand with gcc and the Black Magic Probe</summary>
2040.    <g:image_link>https://leap.tardate.com/ARM/1bitsy/BareMetalBlinky/assets/BareMetalBlinky_build.jpg</g:image_link>
2041.    <category term="STM32"/>
2042.    <category term="C"/>
2043.    <category term="ARM"/>
2044.    <category term="JTAG"/>
2045.  </entry>
2046.  <entry>
2047.    <id>https://leap.tardate.com/Electronics101/555Timer/AircraftNavigationLights/</id>
2048.    <link href="https://leap.tardate.com/Electronics101/555Timer/AircraftNavigationLights/"/>
2049.    <updated>2020-05-31T20:36:41Z</updated>
2050.    <title>#552 Freeform Popsicle Airways</title>
2051.    <summary>Demonstrating a simple aircraft navigation beacon sequence implemented with a couple of 555 timers</summary>
2052.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/AircraftNavigationLights/assets/AircraftNavigationLights_build.jpg</g:image_link>
2053.    <category term="LED"/>
2054.    <category term="555 Timer"/>
2055.    <category term="Circuit Sculpture"/>
2056.    <category term="Freeform"/>
2057.  </entry>
2058.  <entry>
2059.    <id>https://leap.tardate.com/Audio/AudioEffectsChips/SN76477/PropPlane/</id>
2060.    <link href="https://leap.tardate.com/Audio/AudioEffectsChips/SN76477/PropPlane/"/>
2061.    <updated>2020-05-31T20:36:41Z</updated>
2062.    <title>#551 SN76477 Prop Plane</title>
2063.    <summary>Testing the SN76477 propeller plane sound effect configuration</summary>
2064.    <g:image_link>https://leap.tardate.com/Audio/AudioEffectsChips/SN76477/PropPlane/assets/PropPlane_build.jpg</g:image_link>
2065.    <category term="Audio"/>
2066.  </entry>
2067.  <entry>
2068.    <id>https://leap.tardate.com/Equipment/BlackMagicProbe/</id>
2069.    <link href="https://leap.tardate.com/Equipment/BlackMagicProbe/"/>
2070.    <updated>2020-05-31T20:36:42Z</updated>
2071.    <title>#550 Black Magic Probe</title>
2072.    <summary>Using the Black Magic Probe for debugging ARM/STM32 devices over JTAG and SWD, with a demonstration on MacOSX</summary>
2073.    <g:image_link>https://leap.tardate.com/Equipment/BlackMagicProbe/assets/BlackMagicProbe_build.jpg</g:image_link>
2074.    <category term="ARM"/>
2075.    <category term="JTAG"/>
2076.    <category term="SWD"/>
2077.  </entry>
2078.  <entry>
2079.    <id>https://leap.tardate.com/ARM/STM32F103C8T6/BareMetal/</id>
2080.    <link href="https://leap.tardate.com/ARM/STM32F103C8T6/BareMetal/"/>
2081.    <updated>2020-05-31T20:36:41Z</updated>
2082.    <title>#549 Bare Metal C on the Blue Pill</title>
2083.    <summary>Bare metal programming the STM32F103C8T6 (as used in the Blue Pill) by hand with gcc and the stlink open source STM32 MCU programming toolset</summary>
2084.    <g:image_link>https://leap.tardate.com/ARM/STM32F103C8T6/BareMetal/assets/BareMetal_build.jpg</g:image_link>
2085.    <category term="STM32"/>
2086.    <category term="C"/>
2087.  </entry>
2088.  <entry>
2089.    <id>https://leap.tardate.com/ARM/STM32F103C8T6/BluePill/DebugWithStlink/</id>
2090.    <link href="https://leap.tardate.com/ARM/STM32F103C8T6/BluePill/DebugWithStlink/"/>
2091.    <updated>2020-05-31T20:36:41Z</updated>
2092.    <title>#548 Debug Arduino STM32 with stlink</title>
2093.    <summary>Using gdb and the stlink open source STM32 MCU programming toolset to debug code built and uploaded using the Arduino IDE on MacOSX</summary>
2094.    <g:image_link>https://leap.tardate.com/ARM/STM32F103C8T6/BluePill/DebugWithStlink/assets/DebugWithStlink_build.jpg</g:image_link>
2095.    <category term="STM32"/>
2096.    <category term="gdb"/>
2097.    <category term="stlink"/>
2098.  </entry>
2099.  <entry>
2100.    <id>https://leap.tardate.com/ARM/STM32F103C8T6/BluePill/UsingSTLink/</id>
2101.    <link href="https://leap.tardate.com/ARM/STM32F103C8T6/BluePill/UsingSTLink/"/>
2102.    <updated>2020-05-31T20:36:41Z</updated>
2103.    <title>#547 Using STLink with the Arduino IDE</title>
2104.    <summary>Programming an ARM Cortex-M3 STM32F103C8T6 Blue Pill with an ST Link v2 programmer and the Arduino IDE</summary>
2105.    <g:image_link>https://leap.tardate.com/ARM/STM32F103C8T6/BluePill/UsingSTLink/assets/UsingSTLink_build.jpg</g:image_link>
2106.    <category term="STM32"/>
2107.  </entry>
2108.  <entry>
2109.    <id>https://leap.tardate.com/ARM/STM32F103C8T6/48pinDevBoard/</id>
2110.    <link href="https://leap.tardate.com/ARM/STM32F103C8T6/48pinDevBoard/"/>
2111.    <updated>2020-05-31T20:36:41Z</updated>
2112.    <title>#546 STM32F103C8T6 Dev Board</title>
2113.    <summary>Programming the 48 pin version of the ARM Cortex-M3 STM32F103C8T6 board with the Arduino IDE, with examples of programming using USB-Serial or ST-Link v2 from MacOSX</summary>
2114.    <g:image_link>https://leap.tardate.com/ARM/STM32F103C8T6/48pinDevBoard/assets/48pinDevBoard_build.jpg</g:image_link>
2115.    <category term="STM32"/>
2116.  </entry>
2117.  <entry>
2118.    <id>https://leap.tardate.com/ESP8266/YouTubeFootSwitch/</id>
2119.    <link href="https://leap.tardate.com/ESP8266/YouTubeFootSwitch/"/>
2120.    <updated>2020-05-05T16:39:46Z</updated>
2121.    <title>#545 Wireless YouTube Foot Switch</title>
2122.    <summary>An ESP8266-powered foot switch for controlling and looping YouTube videos (ideal for music practice)</summary>
2123.    <g:image_link>https://leap.tardate.com/ESP8266/YouTubeFootSwitch/assets/YouTubeFootSwitch_build.jpg</g:image_link>
2124.    <category term="ESP8266"/>
2125.  </entry>
2126.  <entry>
2127.    <id>https://leap.tardate.com/Electronics101/BatteryManagement/ShengYang18650BatteryShield/</id>
2128.    <link href="https://leap.tardate.com/Electronics101/BatteryManagement/ShengYang18650BatteryShield/"/>
2129.    <updated>2020-04-12T15:30:17Z</updated>
2130.    <title>#544 ShengYang 18650 Battery Shield</title>
2131.    <summary>Checking out the ShengYang 18650 Battery Shield V3 - single cell with USB charge controller and three regulated outputs - 3V, 5V and switchable USB Type A.</summary>
2132.    <g:image_link>https://leap.tardate.com/Electronics101/BatteryManagement/ShengYang18650BatteryShield/assets/ShengYang18650BatteryShield_build.jpg</g:image_link>
2133.    <category term="Power"/>
2134.    <category term="BMS"/>
2135.  </entry>
2136.  <entry>
2137.    <id>https://leap.tardate.com/Electronics101/CD4046/RampGenerator/</id>
2138.    <link href="https://leap.tardate.com/Electronics101/CD4046/RampGenerator/"/>
2139.    <updated>2020-04-12T15:30:17Z</updated>
2140.    <title>#543 PLL Ramp Generator</title>
2141.    <summary>A simple CD4046 ramp generator circuit from a design by M.S. Nagaraj published in Elektor 7/1994.</summary>
2142.    <g:image_link>https://leap.tardate.com/Electronics101/CD4046/RampGenerator/assets/RampGenerator_build.jpg</g:image_link>
2143.    <category term="CD4046"/>
2144.    <category term="Oscillators"/>
2145.  </entry>
2146.  <entry>
2147.    <id>https://leap.tardate.com/Electronics101/InputDevices/FootSwitch/</id>
2148.    <link href="https://leap.tardate.com/Electronics101/InputDevices/FootSwitch/"/>
2149.    <updated>2020-04-12T15:30:17Z</updated>
2150.    <title>#542 DIY Foot Switch</title>
2151.    <summary>A DIY 4-channel foot switch with tri-colour LEDs suitable for use with a microcontroller</summary>
2152.    <g:image_link>https://leap.tardate.com/Electronics101/InputDevices/FootSwitch/assets/FootSwitch_build.jpg</g:image_link>
2153.    <category term="Human Input"/>
2154.    <category term="LED"/>
2155.  </entry>
2156.  <entry>
2157.    <id>https://leap.tardate.com/Electronics101/Oscillators/TL431Multivibrator/</id>
2158.    <link href="https://leap.tardate.com/Electronics101/Oscillators/TL431Multivibrator/"/>
2159.    <updated>2020-04-07T16:33:53Z</updated>
2160.    <title>#541 TL431 Multivibrator</title>
2161.    <summary>an unusual multivibrator using a programmable reference with clean square wave output</summary>
2162.    <g:image_link>https://leap.tardate.com/Electronics101/Oscillators/TL431Multivibrator/assets/TL431Multivibrator_build.jpg</g:image_link>
2163.    <category term="Oscillators"/>
2164.  </entry>
2165.  <entry>
2166.    <id>https://leap.tardate.com/ESP8266/ESP12/DIYDevBoard/</id>
2167.    <link href="https://leap.tardate.com/ESP8266/ESP12/DIYDevBoard/"/>
2168.    <updated>2020-04-07T16:33:52Z</updated>
2169.    <title>#540 ESP-12 DIY Dev Board</title>
2170.    <summary>Building a programming board for the ESP8266 07/12 variants</summary>
2171.    <g:image_link>https://leap.tardate.com/ESP8266/ESP12/DIYDevBoard/assets/DIYDevBoard_build.jpg</g:image_link>
2172.    <category term="ESP8266"/>
2173.  </entry>
2174.  <entry>
2175.    <id>https://leap.tardate.com/Kraft/MetalEarthLeadGuitar/</id>
2176.    <link href="https://leap.tardate.com/Kraft/MetalEarthLeadGuitar/"/>
2177.    <updated>2020-03-31T15:20:15Z</updated>
2178.    <title>#539 Metal Earth Lead Guitar</title>
2179.    <summary>Pimping up the Metal Earth Electric Lead Guitar kit with some sound activated LEDs with electronics squirreled away in an 'amp'</summary>
2180.    <g:image_link>https://leap.tardate.com/Kraft/MetalEarthLeadGuitar/assets/MetalEarthLeadGuitar_build.jpg</g:image_link>
2181.    <category term="Craft"/>
2182.    <category term="LED"/>
2183.    <category term="Audio"/>
2184.  </entry>
2185.  <entry>
2186.    <id>https://leap.tardate.com/Electronics101/BatteryManagement/SingleCellChargeBoostBoard/</id>
2187.    <link href="https://leap.tardate.com/Electronics101/BatteryManagement/SingleCellChargeBoostBoard/"/>
2188.    <updated>2020-03-31T15:20:15Z</updated>
2189.    <title>#538 Single-cell Charge/Boost Board</title>
2190.    <summary>An 18650 single-cell battery module with integrated TP4056 5V/USB charge controller and MT3608 5V output boost converter</summary>
2191.    <g:image_link>https://leap.tardate.com/Electronics101/BatteryManagement/SingleCellChargeBoostBoard/assets/SingleCellChargeBoostBoard_build.jpg</g:image_link>
2192.    <category term="Power"/>
2193.    <category term="BMS"/>
2194.  </entry>
2195.  <entry>
2196.    <id>https://leap.tardate.com/Electronics101/SchmittTrigger/SwitchDebouncer/</id>
2197.    <link href="https://leap.tardate.com/Electronics101/SchmittTrigger/SwitchDebouncer/"/>
2198.    <updated>2020-03-31T15:20:15Z</updated>
2199.    <title>#537 Schmitt Switch Debouncer</title>
2200.    <summary>Testing a simple Schmitt Trigger debounce circuit using a 74HC14</summary>
2201.    <g:image_link>https://leap.tardate.com/Electronics101/SchmittTrigger/SwitchDebouncer/assets/SwitchDebouncer_build.jpg</g:image_link>
2202.    <category term="Schmitt"/>
2203.    <category term="CMOS/TTL"/>
2204.  </entry>
2205.  <entry>
2206.    <id>https://leap.tardate.com/Electronics101/SchmittTrigger/PowerOkIndicator/</id>
2207.    <link href="https://leap.tardate.com/Electronics101/SchmittTrigger/PowerOkIndicator/"/>
2208.    <updated>2020-03-31T15:20:15Z</updated>
2209.    <title>#536 Power OK Indicator</title>
2210.    <summary>Testing a simple Schmitt Trigger power OK indicator using a 74HC14</summary>
2211.    <g:image_link>https://leap.tardate.com/Electronics101/SchmittTrigger/PowerOkIndicator/assets/PowerOkIndicator_build.jpg</g:image_link>
2212.    <category term="Schmitt"/>
2213.    <category term="CMOS/TTL"/>
2214.  </entry>
2215.  <entry>
2216.    <id>https://leap.tardate.com/Electronics101/Detectors/AcLineDetector/</id>
2217.    <link href="https://leap.tardate.com/Electronics101/Detectors/AcLineDetector/"/>
2218.    <updated>2020-03-31T15:20:15Z</updated>
2219.    <title>#535 AC Line Detector</title>
2220.    <summary>Playing around with a simple AC line current detector</summary>
2221.    <g:image_link>https://leap.tardate.com/Electronics101/Detectors/AcLineDetector/assets/AcLineDetector_build.jpg</g:image_link>
2222.    <category term="power"/>
2223.    <category term="detector"/>
2224.  </entry>
2225.  <entry>
2226.    <id>https://leap.tardate.com/ESP8266/ESP12/Programming/</id>
2227.    <link href="https://leap.tardate.com/ESP8266/ESP12/Programming/"/>
2228.    <updated>2020-04-07T16:33:52Z</updated>
2229.    <title>#534 ESP-12 Programming</title>
2230.    <summary>The basics of programming an ESP-12 with the ESP8266 core for Arduino</summary>
2231.    <g:image_link>https://leap.tardate.com/ESP8266/ESP12/Programming/assets/Programming_build.jpg</g:image_link>
2232.    <category term="ESP8266"/>
2233.  </entry>
2234.  <entry>
2235.    <id>https://leap.tardate.com/PIC/TedsClock/</id>
2236.    <link href="https://leap.tardate.com/PIC/TedsClock/"/>
2237.    <updated>2020-03-21T11:41:57Z</updated>
2238.    <title>#533 Ted's LED Clock</title>
2239.    <summary>Building a freeform 20th anniversary clone of @tedyapo's LED clock, driven with a PIC16F84A</summary>
2240.    <g:image_link>https://leap.tardate.com/PIC/TedsClock/assets/TedsClock_build.jpg</g:image_link>
2241.    <category term="PIC"/>
2242.    <category term="LED"/>
2243.    <category term="Circuit Sculpture"/>
2244.    <category term="Freeform"/>
2245.  </entry>
2246.  <entry>
2247.    <id>https://leap.tardate.com/PIC/PIC16F84ABlinky/</id>
2248.    <link href="https://leap.tardate.com/PIC/PIC16F84ABlinky/"/>
2249.    <updated>2020-03-21T11:41:57Z</updated>
2250.    <title>#532 PIC16F84A Blinky</title>
2251.    <summary>A quick test of programming a PIC16F84A on a breadboard and 3rd party dev board with MPLabX (assembler)</summary>
2252.    <g:image_link>https://leap.tardate.com/PIC/PIC16F84ABlinky/assets/PIC16F84ABlinky_build.jpg</g:image_link>
2253.    <category term="PIC"/>
2254.    <category term="LED"/>
2255.  </entry>
2256.  <entry>
2257.    <id>https://leap.tardate.com/playground/ATtiny/SSD1306/BasicDemo/</id>
2258.    <link href="https://leap.tardate.com/playground/ATtiny/SSD1306/BasicDemo/"/>
2259.    <updated>2022-05-11T15:25:09Z</updated>
2260.    <title>#531 ATtiny SSD1306 I²C</title>
2261.    <summary>Basic demonstration using an ATtiny85 to drive an SSD1306 OLED over I²C</summary>
2262.    <g:image_link>https://leap.tardate.com/playground/ATtiny/SSD1306/BasicDemo/assets/BasicDemo_build.jpg</g:image_link>
2263.    <category term="AVR"/>
2264.    <category term="OLED"/>
2265.  </entry>
2266.  <entry>
2267.    <id>https://leap.tardate.com/playground/OLED/SSD1306BareBackI2C/</id>
2268.    <link href="https://leap.tardate.com/playground/OLED/SSD1306BareBackI2C/"/>
2269.    <updated>2020-03-14T16:56:38Z</updated>
2270.    <title>#530 SSD1306 OLED Bareback I²C</title>
2271.    <summary>Test driving a monochrome 128x32 OLED Display with an Arduino and the raw command set over I²C</summary>
2272.    <g:image_link>https://leap.tardate.com/playground/OLED/SSD1306BareBackI2C/assets/SSD1306BareBackI2C_build.jpg</g:image_link>
2273.    <category term="OLED"/>
2274.    <category term="Arduino"/>
2275.  </entry>
2276.  <entry>
2277.    <id>https://leap.tardate.com/playground/ATtiny/PinChangeInterrupts/</id>
2278.    <link href="https://leap.tardate.com/playground/ATtiny/PinChangeInterrupts/"/>
2279.    <updated>2020-02-15T08:47:43Z</updated>
2280.    <title>#529 ATtiny Pin Change Interrupts</title>
2281.    <summary>How to use pin change interrupts with the ATtiny85</summary>
2282.    <g:image_link>https://leap.tardate.com/playground/ATtiny/PinChangeInterrupts/assets/PinChangeInterrupts_build.jpg</g:image_link>
2283.    <category term="Arduino"/>
2284.    <category term="AVR"/>
2285.  </entry>
2286.  <entry>
2287.    <id>https://leap.tardate.com/BoldportClub/IxpandO/ATtinyController/</id>
2288.    <link href="https://leap.tardate.com/BoldportClub/IxpandO/ATtinyController/"/>
2289.    <updated>2020-01-30T13:45:31Z</updated>
2290.    <title>#528 ATtiny IxpandO</title>
2291.    <summary>Using an ATtiny85 to drive the Boldport IxpandO MCP23017-based I²C IO expansion board</summary>
2292.    <g:image_link>https://leap.tardate.com/BoldportClub/IxpandO/ATtinyController/assets/ATtinyController_build.jpg</g:image_link>
2293.    <category term="Boldport"/>
2294.    <category term="Port Expander"/>
2295.    <category term="AVR"/>
2296.  </entry>
2297.  <entry>
2298.    <id>https://leap.tardate.com/playground/OLED/SSD1306_u8g2/</id>
2299.    <link href="https://leap.tardate.com/playground/OLED/SSD1306_u8g2/"/>
2300.    <updated>2020-01-30T13:45:31Z</updated>
2301.    <title>#527 SSD1306 With u8g v2</title>
2302.    <summary>Testing an SSD1306 128x32 OLED with the new v2 u8g library over I²C</summary>
2303.    <g:image_link>https://leap.tardate.com/playground/OLED/SSD1306_u8g2/assets/SSD1306_u8g2_build.jpg</g:image_link>
2304.    <category term="OLED"/>
2305.    <category term="Arduino"/>
2306.  </entry>
2307.  <entry>
2308.    <id>https://leap.tardate.com/Equipment/MetalDetectorKit/</id>
2309.    <link href="https://leap.tardate.com/Equipment/MetalDetectorKit/"/>
2310.    <updated>2020-01-22T13:37:56Z</updated>
2311.    <title>#526 Metal Detector Kit</title>
2312.    <summary>An inductive metal detector kit powered by an 18650 with TP4333-based BMS charging circuit</summary>
2313.    <g:image_link>https://leap.tardate.com/Equipment/MetalDetectorKit/assets/MetalDetectorKit_build.jpg</g:image_link>
2314.    <category term="BMS"/>
2315.    <category term="RF"/>
2316.  </entry>
2317.  <entry>
2318.    <id>https://leap.tardate.com/Audio/SimpleSoundEffects2/</id>
2319.    <link href="https://leap.tardate.com/Audio/SimpleSoundEffects2/"/>
2320.    <updated>2020-01-15T16:25:24Z</updated>
2321.    <title>#525 Simple Sound Effects 2</title>
2322.    <summary>Building the ATtiny version of the Elektor Simple Sound Effects project, with a port to Arduino/C++.</summary>
2323.    <g:image_link>https://leap.tardate.com/Audio/SimpleSoundEffects2/assets/SimpleSoundEffects2_build.jpg</g:image_link>
2324.    <category term="Audio"/>
2325.    <category term="AVR"/>
2326.  </entry>
2327.  <entry>
2328.    <id>https://leap.tardate.com/playground/ThermalPrinter/Lucky4DOracle/</id>
2329.    <link href="https://leap.tardate.com/playground/ThermalPrinter/Lucky4DOracle/"/>
2330.    <updated>2019-12-30T04:27:25Z</updated>
2331.    <title>#524 Lucky 4D Printer</title>
2332.    <summary>A Lucky 4D number generator, built with a JP-QR701 Thermal Printer, including a detour into to print Chinese (GB2312-80)</summary>
2333.    <g:image_link>https://leap.tardate.com/playground/ThermalPrinter/Lucky4DOracle/assets/Lucky4DOracle_build.jpg</g:image_link>
2334.    <category term="Arduino"/>
2335.    <category term="Thermal Printer"/>
2336.  </entry>
2337.  <entry>
2338.    <id>https://leap.tardate.com/playground/ThermalPrinter/QR701Basics/</id>
2339.    <link href="https://leap.tardate.com/playground/ThermalPrinter/QR701Basics/"/>
2340.    <updated>2019-12-28T09:22:23Z</updated>
2341.    <title>#523 JP-QR701 Thermal Printer Basics</title>
2342.    <summary>Learning how to use the JP-QR701 thermal printer module with an Arduino, including QR codes generated with Python</summary>
2343.    <g:image_link>https://leap.tardate.com/playground/ThermalPrinter/QR701Basics/assets/QR701Basics_build.jpg</g:image_link>
2344.    <category term="Arduino"/>
2345.    <category term="Thermal Printer"/>
2346.  </entry>
2347.  <entry>
2348.    <id>https://leap.tardate.com/Radio/LPD433/RFDoorbell/</id>
2349.    <link href="https://leap.tardate.com/Radio/LPD433/RFDoorbell/"/>
2350.    <updated>2019-12-28T09:22:23Z</updated>
2351.    <title>#522 Remote Doorbell</title>
2352.    <summary>A simple doorbell using a 433MHz transmitter/receiver pair for remote signalling, and an HS-088 sound chip for a doorbell effect</summary>
2353.    <g:image_link>https://leap.tardate.com/Radio/LPD433/RFDoorbell/assets/RFDoorbell_build.jpg</g:image_link>
2354.    <category term="Radio"/>
2355.    <category term="OpAmp"/>
2356.    <category term="LPD433"/>
2357.    <category term="Music Chips"/>
2358.  </entry>
2359.  <entry>
2360.    <id>https://leap.tardate.com/Audio/AudioEffectsChips/CK9561/</id>
2361.    <link href="https://leap.tardate.com/Audio/AudioEffectsChips/CK9561/"/>
2362.    <updated>2019-12-22T04:55:25Z</updated>
2363.    <title>#521 CK9561 Audio Effects Chip</title>
2364.    <summary>Figuring out how to use the CK9561 music chip with 4 sound effects - alarm/siren/weapon sounds that sound strangely familiar if you have ever walked through a toy department at Christmas!</summary>
2365.    <g:image_link>https://leap.tardate.com/Audio/AudioEffectsChips/CK9561/assets/CK9561_build.jpg</g:image_link>
2366.    <category term="Audio"/>
2367.    <category term="Music Chips"/>
2368.  </entry>
2369.  <entry>
2370.    <id>https://leap.tardate.com/Electronics101/555Timer/ContinuityTester/</id>
2371.    <link href="https://leap.tardate.com/Electronics101/555Timer/ContinuityTester/"/>
2372.    <updated>2019-12-19T14:39:43Z</updated>
2373.    <title>#520 Continuity Tester</title>
2374.    <summary>A low-resistance continuity tester in a solder tube. Runs on 3V with a 555 timer buzzer.</summary>
2375.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/ContinuityTester/assets/ContinuityTester_build.jpg</g:image_link>
2376.    <category term="555 Timer"/>
2377.    <category term="Tools"/>
2378.    <category term="Test Equipment"/>
2379.  </entry>
2380.  <entry>
2381.    <id>https://leap.tardate.com/Electronics101/Fuses/PPTCPerformance/</id>
2382.    <link href="https://leap.tardate.com/Electronics101/Fuses/PPTCPerformance/"/>
2383.    <updated>2019-12-16T17:24:08Z</updated>
2384.    <title>#519 PPTC Performance</title>
2385.    <summary>Testing the performance of a few PolySwitch polymeric positive temperature coefficient (PPTC) resettable fuses</summary>
2386.    <g:image_link>https://leap.tardate.com/Electronics101/Fuses/PPTCPerformance/assets/PPTCPerformance_build.jpg</g:image_link>
2387.    <category term="Fuse"/>
2388.    <category term="Power"/>
2389.  </entry>
2390.  <entry>
2391.    <id>https://leap.tardate.com/Equipment/LipoTesterModule/</id>
2392.    <link href="https://leap.tardate.com/Equipment/LipoTesterModule/"/>
2393.    <updated>2019-12-16T17:24:08Z</updated>
2394.    <title>#518 Lipo Tester Module</title>
2395.    <summary>Just a quick look at a 1S to 8S battery tester and alarm module.</summary>
2396.    <g:image_link>https://leap.tardate.com/Equipment/LipoTesterModule/assets/LipoTesterModule_build.jpg</g:image_link>
2397.    <category term="Power"/>
2398.    <category term="BMS"/>
2399.    <category term="Tools"/>
2400.    <category term="Test Equipment"/>
2401.  </entry>
2402.  <entry>
2403.    <id>https://leap.tardate.com/Electronics101/555Timer/PrecisionVariableFrequencyFixedDuty/</id>
2404.    <link href="https://leap.tardate.com/Electronics101/555Timer/PrecisionVariableFrequencyFixedDuty/"/>
2405.    <updated>2020-03-14T16:56:38Z</updated>
2406.    <title>#517 555 Timer Fixed-duty VFO</title>
2407.    <summary>Using an unconventional configuration of a 555 timer variable frequency oscillator with fixed duty cycle (and precise duty cycle fine adjustment)</summary>
2408.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/PrecisionVariableFrequencyFixedDuty/assets/PrecisionVariableFrequencyFixedDuty_build.jpg</g:image_link>
2409.    <category term="555 Timer"/>
2410.    <category term="Oscillators"/>
2411.  </entry>
2412.  <entry>
2413.    <id>https://leap.tardate.com/Radio/FM/ZX2031Kit/</id>
2414.    <link href="https://leap.tardate.com/Radio/FM/ZX2031Kit/"/>
2415.    <updated>2019-12-12T15:37:15Z</updated>
2416.    <title>#516 ZX2031 FM Radio Kit</title>
2417.    <summary>Building an FM radio kit based on the Silan SC1088 FM receiver chip</summary>
2418.    <g:image_link>https://leap.tardate.com/Radio/FM/ZX2031Kit/assets/ZX2031Kit_build.jpg</g:image_link>
2419.    <category term="Radio"/>
2420.    <category term="FM"/>
2421.  </entry>
2422.  <entry>
2423.    <id>https://leap.tardate.com/Radio/FM/FrequencyConverter/</id>
2424.    <link href="https://leap.tardate.com/Radio/FM/FrequencyConverter/"/>
2425.    <updated>2019-12-08T03:41:36Z</updated>
2426.    <title>#515 FM Converter</title>
2427.    <summary>Playing with a simple FM frequency conversion circuit, and demonstrating how it can be used for external tuning</summary>
2428.    <g:image_link>https://leap.tardate.com/Radio/FM/FrequencyConverter/assets/FrequencyConverter_build.jpg</g:image_link>
2429.    <category term="Radio"/>
2430.    <category term="FM"/>
2431.  </entry>
2432.  <entry>
2433.    <id>https://leap.tardate.com/Electronics101/SubtractionLoopCounterKit/</id>
2434.    <link href="https://leap.tardate.com/Electronics101/SubtractionLoopCounterKit/"/>
2435.    <updated>2019-12-08T03:41:36Z</updated>
2436.    <title>#514 Subtraction Loop Counter Kit</title>
2437.    <summary>Investigating a single-digit counter with configurable range and frequency built with 74HC192, CD4011 and CD4511 logic</summary>
2438.    <g:image_link>https://leap.tardate.com/Electronics101/SubtractionLoopCounterKit/assets/SubtractionLoopCounterKit_build.jpg</g:image_link>
2439.    <category term="CMOS/TTL"/>
2440.  </entry>
2441.  <entry>
2442.    <id>https://leap.tardate.com/Equipment/DummyLoad/SimpleResistiveUsbLoad/</id>
2443.    <link href="https://leap.tardate.com/Equipment/DummyLoad/SimpleResistiveUsbLoad/"/>
2444.    <updated>2019-12-08T03:41:36Z</updated>
2445.    <title>#513 Simple USB Dummy Load</title>
2446.    <summary>Examining and testing a simple USB resistive dummy load</summary>
2447.    <g:image_link>https://leap.tardate.com/Equipment/DummyLoad/SimpleResistiveUsbLoad/assets/SimpleResistiveUsbLoad_build.jpg</g:image_link>
2448.    <category term="USB"/>
2449.    <category term="Dummy Load"/>
2450.  </entry>
2451.  <entry>
2452.    <id>https://leap.tardate.com/Audio/GreaterSimpleSoundEffects/</id>
2453.    <link href="https://leap.tardate.com/Audio/GreaterSimpleSoundEffects/"/>
2454.    <updated>2019-12-01T08:56:42Z</updated>
2455.    <title>#512 Greater Simple Sound Effects</title>
2456.    <summary>Reviving a design from Elektor in 1980, with light and touch-sensor variations on the basic CD4040/CD4049 oscillator. The circuit must have been used in BEAM robots back in the day, so my final build is a freeform phototrope squawker.</summary>
2457.    <g:image_link>https://leap.tardate.com/Audio/GreaterSimpleSoundEffects/assets/GreaterSimpleSoundEffects_build.jpg</g:image_link>
2458.    <category term="BEAM"/>
2459.    <category term="CMOS/TTL"/>
2460.    <category term="Sensors"/>
2461.    <category term="Circuit Sculpture"/>
2462.    <category term="Freeform"/>
2463.  </entry>
2464.  <entry>
2465.    <id>https://leap.tardate.com/Electronics101/Power/BridgeDoublerSplitSupply/</id>
2466.    <link href="https://leap.tardate.com/Electronics101/Power/BridgeDoublerSplitSupply/"/>
2467.    <updated>2019-11-17T13:14:42Z</updated>
2468.    <title>#511 Bridge Doubler Split Supply</title>
2469.    <summary>an AC-powered bridge doubler supply with DC output governed by 7815/7915 ±15V DC linear regulation</summary>
2470.    <g:image_link>https://leap.tardate.com/Electronics101/Power/BridgeDoublerSplitSupply/assets/BridgeDoublerSplitSupply_build.jpg</g:image_link>
2471.    <category term="Power"/>
2472.  </entry>
2473.  <entry>
2474.    <id>https://leap.tardate.com/Electronics101/SerialInterface/UsbToRs232/</id>
2475.    <link href="https://leap.tardate.com/Electronics101/SerialInterface/UsbToRs232/"/>
2476.    <updated>2019-11-14T17:23:18Z</updated>
2477.    <title>#510 USB to RS-232 Adapter</title>
2478.    <summary>building a USB to 3-wire RS-232 adapter with the CH340G and MAX3232 chipsets</summary>
2479.    <g:image_link>https://leap.tardate.com/Electronics101/SerialInterface/UsbToRs232/assets/UsbToRs232_build.jpg</g:image_link>
2480.    <category term="RS232"/>
2481.    <category term="Serial"/>
2482.    <category term="USB"/>
2483.  </entry>
2484.  <entry>
2485.    <id>https://leap.tardate.com/Electronics101/SerialInterface/MAX3232/RS232TTLModule/</id>
2486.    <link href="https://leap.tardate.com/Electronics101/SerialInterface/MAX3232/RS232TTLModule/"/>
2487.    <updated>2019-11-13T14:58:15Z</updated>
2488.    <title>#509 MAX3232 RS232 to TTL Module</title>
2489.    <summary>Using a MAX3232 Module with CH340 adapter for USB to RS-232 serial communication, with examples using screen on MacOSX</summary>
2490.    <g:image_link>https://leap.tardate.com/Electronics101/SerialInterface/MAX3232/RS232TTLModule/assets/RS232TTLModule_build.jpg</g:image_link>
2491.    <category term="RS232"/>
2492.    <category term="Serial"/>
2493.    <category term="USB"/>
2494.  </entry>
2495.  <entry>
2496.    <id>https://leap.tardate.com/ESP32/UsingMDNS/</id>
2497.    <link href="https://leap.tardate.com/ESP32/UsingMDNS/"/>
2498.    <updated>2019-11-10T09:07:05Z</updated>
2499.    <title>#508 Using mDNS</title>
2500.    <summary>delving into multicast DNS and how it can be used to find and connect to ESP32 devices on the network</summary>
2501.    <g:image_link>https://leap.tardate.com/ESP32/UsingMDNS/assets/UsingMDNS_build.jpg</g:image_link>
2502.    <category term="ESP32"/>
2503.    <category term="mDNS"/>
2504.  </entry>
2505.  <entry>
2506.    <id>https://leap.tardate.com/Electronics101/Switches/SingleStageDelay/</id>
2507.    <link href="https://leap.tardate.com/Electronics101/Switches/SingleStageDelay/"/>
2508.    <updated>2019-11-05T13:14:23Z</updated>
2509.    <title>#507 Single-stage Delay Switch</title>
2510.    <summary>comparing BJT and MOSFETs for creating a simple turn-off delay with discrete components</summary>
2511.    <g:image_link>https://leap.tardate.com/Electronics101/Switches/SingleStageDelay/assets/SingleStageDelay_build.jpg</g:image_link>
2512.    <category term="Switches"/>
2513.    <category term="RC"/>
2514.  </entry>
2515.  <entry>
2516.    <id>https://leap.tardate.com/BoldportClub/pcbmode/</id>
2517.    <link href="https://leap.tardate.com/BoldportClub/pcbmode/"/>
2518.    <updated>2019-11-15T16:37:51Z</updated>
2519.    <title>#506 Learning PCBmodE</title>
2520.    <summary>learning how to use Boldport PCBmodE design software with an example of making a simple 555 timer LED blinky PCB</summary>
2521.    <g:image_link>https://leap.tardate.com/BoldportClub/pcbmode/assets/pcbmode_build.jpg</g:image_link>
2522.    <category term="Boldport"/>
2523.    <category term="PCB Design"/>
2524.    <category term="EDA"/>
2525.  </entry>
2526.  <entry>
2527.    <id>https://leap.tardate.com/Audio/RakitBaby8Sequencer/</id>
2528.    <link href="https://leap.tardate.com/Audio/RakitBaby8Sequencer/"/>
2529.    <updated>2019-10-29T01:56:14Z</updated>
2530.    <title>#505 Rakit Baby8 Sequencer</title>
2531.    <summary>Building the Rakit Baby8, an 8 step sequencer with CV and Gate outputs and a clock input.</summary>
2532.    <g:image_link>https://leap.tardate.com/Audio/RakitBaby8Sequencer/assets/RakitBaby8Sequencer_build.jpg</g:image_link>
2533.    <category term="Audio"/>
2534.    <category term="Music"/>
2535.    <category term="Sequencer"/>
2536.  </entry>
2537.  <entry>
2538.    <id>https://leap.tardate.com/Electronics101/INA226/HighSideMonitorBasics/</id>
2539.    <link href="https://leap.tardate.com/Electronics101/INA226/HighSideMonitorBasics/"/>
2540.    <updated>2019-10-26T18:30:41Z</updated>
2541.    <title>#504 INA226 High-side Monitor Basics</title>
2542.    <summary>How to design for the INA226 current and power monitor and test with an Arduino and various libraries including raw wire I²C</summary>
2543.    <g:image_link>https://leap.tardate.com/Electronics101/INA226/HighSideMonitorBasics/assets/HighSideMonitorBasics_build.jpg</g:image_link>
2544.    <category term="INA226"/>
2545.    <category term="Sensors"/>
2546.  </entry>
2547.  <entry>
2548.    <id>https://leap.tardate.com/Equipment/imaxRcB3LipoCharger/</id>
2549.    <link href="https://leap.tardate.com/Equipment/imaxRcB3LipoCharger/"/>
2550.    <updated>2019-10-20T15:46:35Z</updated>
2551.    <title>#503 imaxRC B3 Lipo Charger</title>
2552.    <summary>quick teardown and review of the imax B3 Pro charger for 2s and 3s Lithium-polymer battery packs</summary>
2553.    <g:image_link>https://leap.tardate.com/Equipment/imaxRcB3LipoCharger/assets/imaxRcB3LipoCharger_build.jpg</g:image_link>
2554.    <category term="Power"/>
2555.    <category term="BMS"/>
2556.  </entry>
2557.  <entry>
2558.    <id>https://leap.tardate.com/Equipment/Lii202SmartCharger/</id>
2559.    <link href="https://leap.tardate.com/Equipment/Lii202SmartCharger/"/>
2560.    <updated>2019-10-20T15:46:35Z</updated>
2561.    <title>#502 LiitoKala Lii-202 Smart Charger</title>
2562.    <summary>quick teardown and review of the Lii-202 18650 charger and power bank</summary>
2563.    <g:image_link>https://leap.tardate.com/Equipment/Lii202SmartCharger/assets/Lii202SmartCharger_build.jpg</g:image_link>
2564.    <category term="Power"/>
2565.    <category term="BMS"/>
2566.  </entry>
2567.  <entry>
2568.    <id>https://leap.tardate.com/Electronics101/BatteryManagement/SingleCellLithiumCharger/</id>
2569.    <link href="https://leap.tardate.com/Electronics101/BatteryManagement/SingleCellLithiumCharger/"/>
2570.    <updated>2019-10-20T15:46:35Z</updated>
2571.    <title>#501 Single-cell Lithium Charger</title>
2572.    <summary>How to charge a single 18650 lithium-ion cell with a TP4056-based charging kit, with comparison to ETA9635/ETA9638-based modules</summary>
2573.    <g:image_link>https://leap.tardate.com/Electronics101/BatteryManagement/SingleCellLithiumCharger/assets/SingleCellLithiumCharger_build.jpg</g:image_link>
2574.    <category term="Power"/>
2575.    <category term="BMS"/>
2576.  </entry>
2577.  <entry>
2578.    <id>https://leap.tardate.com/playground/RFID/Concentration/</id>
2579.    <link href="https://leap.tardate.com/playground/RFID/Concentration/"/>
2580.    <updated>2019-10-15T17:20:23Z</updated>
2581.    <title>#500 RFID Concentration Game</title>
2582.    <summary>Play a game of Concentration/Pairs with a stack of MIFARE Classic cards</summary>
2583.    <g:image_link>https://leap.tardate.com/playground/RFID/Concentration/assets/Concentration_build.jpg</g:image_link>
2584.    <category term="RFID"/>
2585.    <category term="Arduino"/>
2586.    <category term="Boldport"/>
2587.    <category term="LED"/>
2588.  </entry>
2589.  <entry>
2590.    <id>https://leap.tardate.com/Audio/AudioEffectsChips/HS088/Amplified/</id>
2591.    <link href="https://leap.tardate.com/Audio/AudioEffectsChips/HS088/Amplified/"/>
2592.    <updated>2019-09-29T13:47:06Z</updated>
2593.    <title>#499 HS088 Low-voltage Amplifier</title>
2594.    <summary>adding a low-voltage BJT class A amplifier for the HS088 Audio Effects Chip</summary>
2595.    <g:image_link>https://leap.tardate.com/Audio/AudioEffectsChips/HS088/Amplified/assets/Amplified_build.jpg</g:image_link>
2596.    <category term="Audio"/>
2597.    <category term="Music Chips"/>
2598.  </entry>
2599.  <entry>
2600.    <id>https://leap.tardate.com/Electronics101/TeslaCoil/MusicalKit/</id>
2601.    <link href="https://leap.tardate.com/Electronics101/TeslaCoil/MusicalKit/"/>
2602.    <updated>2019-09-29T13:47:06Z</updated>
2603.    <title>#498 Tesla Coil Plasma Speaker Kit</title>
2604.    <summary>playing with a Tesla coil (slayer exciter) circuit that also acts as an audio speaker with pulsing LED effects</summary>
2605.    <g:image_link>https://leap.tardate.com/Electronics101/TeslaCoil/MusicalKit/assets/MusicalKit_build.jpg</g:image_link>
2606.    <category term="Audio"/>
2607.    <category term="Power"/>
2608.    <category term="Oscillators"/>
2609.  </entry>
2610.  <entry>
2611.    <id>https://leap.tardate.com/ESP32/PublishingInternals/</id>
2612.    <link href="https://leap.tardate.com/ESP32/PublishingInternals/"/>
2613.    <updated>2019-09-29T13:47:06Z</updated>
2614.    <title>#497 Publishing Internals</title>
2615.    <summary>Publishing live ESP32 system internals to the web - an exploration of ESP32 features and web serving options, including JSON serialization</summary>
2616.    <g:image_link>https://leap.tardate.com/ESP32/PublishingInternals/assets/PublishingInternals_build.jpg</g:image_link>
2617.    <category term="ESP32"/>
2618.    <category term="JSON"/>
2619.    <category term="WebServer"/>
2620.    <category term="Sensors"/>
2621.  </entry>
2622.  <entry>
2623.    <id>https://leap.tardate.com/ESP32/GettingStarted/</id>
2624.    <link href="https://leap.tardate.com/ESP32/GettingStarted/"/>
2625.    <updated>2019-09-29T13:47:06Z</updated>
2626.    <title>#496 ESP32 Getting Started</title>
2627.    <summary>Getting started with the ESP32: connecting and programming from MacOSX with the Arduino IDE using a WiFi scanner script as an example</summary>
2628.    <g:image_link>https://leap.tardate.com/ESP32/GettingStarted/assets/GettingStarted_build.jpg</g:image_link>
2629.    <category term="ESP32"/>
2630.  </entry>
2631.  <entry>
2632.    <id>https://leap.tardate.com/Electronics101/BJT/NegativeFeedbackAmplifier/</id>
2633.    <link href="https://leap.tardate.com/Electronics101/BJT/NegativeFeedbackAmplifier/"/>
2634.    <updated>2019-09-14T15:33:45Z</updated>
2635.    <title>#495 Negative Feedback Amplifier</title>
2636.    <summary>examining the design and performance of an ac-coupled negative feedback amplifier constructed with BJTs</summary>
2637.    <g:image_link>https://leap.tardate.com/Electronics101/BJT/NegativeFeedbackAmplifier/assets/NegativeFeedbackAmplifier_build.jpg</g:image_link>
2638.    <category term="BJT"/>
2639.  </entry>
2640.  <entry>
2641.    <id>https://leap.tardate.com/FPGA/Fomu/BuildNotifier/</id>
2642.    <link href="https://leap.tardate.com/FPGA/Fomu/BuildNotifier/"/>
2643.    <updated>2019-09-08T10:59:52Z</updated>
2644.    <title>#494 Fomu Build Notifier</title>
2645.    <summary>using the Fomu's RGB-in-your-USB as a test results notifier in RISC-V C (demonstrated with Ruby, RSpec and Guard)</summary>
2646.    <g:image_link>https://leap.tardate.com/FPGA/Fomu/BuildNotifier/assets/BuildNotifier_build.jpg</g:image_link>
2647.    <category term="FPGA"/>
2648.    <category term="Ruby"/>
2649.  </entry>
2650.  <entry>
2651.    <id>https://leap.tardate.com/FPGA/Fomu/GettingStarted/</id>
2652.    <link href="https://leap.tardate.com/FPGA/Fomu/GettingStarted/"/>
2653.    <updated>2019-09-08T10:59:52Z</updated>
2654.    <title>#493 Getting Started with Fomu</title>
2655.    <summary>first look at the Fomu FPGA and some tests running MicroPython on the RISC-V CPU core, and peeking/poking memory over the wishbone bus.</summary>
2656.    <g:image_link>https://leap.tardate.com/FPGA/Fomu/GettingStarted/assets/GettingStarted_build.jpg</g:image_link>
2657.    <category term="FPGA"/>
2658.  </entry>
2659.  <entry>
2660.    <id>https://leap.tardate.com/Kraft/KickingBack/</id>
2661.    <link href="https://leap.tardate.com/Kraft/KickingBack/"/>
2662.    <updated>2019-08-31T12:28:56Z</updated>
2663.    <title>#492 Kicking Back</title>
2664.    <summary>a useless machine/desktop toy that employs some overly complex mechanics to simply kick a ball (in a minor homage to @mPinoe)</summary>
2665.    <g:image_link>https://leap.tardate.com/Kraft/KickingBack/assets/KickingBack_build.jpg</g:image_link>
2666.    <category term="Sensors"/>
2667.    <category term="Solenoid"/>
2668.    <category term="555 Timer"/>
2669.  </entry>
2670.  <entry>
2671.    <id>https://leap.tardate.com/Kinetics/Solenoids/MagnetSwitchedSolenoid/</id>
2672.    <link href="https://leap.tardate.com/Kinetics/Solenoids/MagnetSwitchedSolenoid/"/>
2673.    <updated>2019-08-19T14:38:51Z</updated>
2674.    <title>#491 Magnet-switched Solenoid</title>
2675.    <summary>using a Hall effect sensor to trigger a solenoid with a fixed pulse</summary>
2676.    <g:image_link>https://leap.tardate.com/Kinetics/Solenoids/MagnetSwitchedSolenoid/assets/MagnetSwitchedSolenoid_build.jpg</g:image_link>
2677.    <category term="Solenoid"/>
2678.    <category term="Sensors"/>
2679.  </entry>
2680.  <entry>
2681.    <id>https://leap.tardate.com/Electronics101/EdgeDetection/555FallingEdgeDetector/</id>
2682.    <link href="https://leap.tardate.com/Electronics101/EdgeDetection/555FallingEdgeDetector/"/>
2683.    <updated>2019-08-19T14:38:51Z</updated>
2684.    <title>#490 555 Falling Edge Detector</title>
2685.    <summary>using the 555 timer, BJT inverter and AC-coupling to produce a fixed-width falling edge trigger pulse</summary>
2686.    <g:image_link>https://leap.tardate.com/Electronics101/EdgeDetection/555FallingEdgeDetector/assets/555FallingEdgeDetector_build.jpg</g:image_link>
2687.    <category term="555 Timer"/>
2688.  </entry>
2689.  <entry>
2690.    <id>https://leap.tardate.com/Electronics101/EdgeDetection/555RisingEdgeDetector/</id>
2691.    <link href="https://leap.tardate.com/Electronics101/EdgeDetection/555RisingEdgeDetector/"/>
2692.    <updated>2019-08-19T14:38:51Z</updated>
2693.    <title>#489 555 Rising Edge Detector</title>
2694.    <summary>using the 555 timer and AC-coupling to produce a fixed-width rising edge trigger pulse</summary>
2695.    <g:image_link>https://leap.tardate.com/Electronics101/EdgeDetection/555RisingEdgeDetector/assets/555RisingEdgeDetector_build.jpg</g:image_link>
2696.    <category term="555 Timer"/>
2697.  </entry>
2698.  <entry>
2699.    <id>https://leap.tardate.com/Electronics101/EdgeDetection/XorRcEdgeDetector/</id>
2700.    <link href="https://leap.tardate.com/Electronics101/EdgeDetection/XorRcEdgeDetector/"/>
2701.    <updated>2019-08-19T14:38:51Z</updated>
2702.    <title>#488 XOR-RC Edge Detector</title>
2703.    <summary>Dual edge detection with a 74LS86 XOR and RC circuit</summary>
2704.    <g:image_link>https://leap.tardate.com/Electronics101/EdgeDetection/XorRcEdgeDetector/assets/XorRcEdgeDetector_build.jpg</g:image_link>
2705.    <category term="CMOS/TTL"/>
2706.  </entry>
2707.  <entry>
2708.    <id>https://leap.tardate.com/Electronics101/Oscillators/CrystalLocked1khzOscillator/</id>
2709.    <link href="https://leap.tardate.com/Electronics101/Oscillators/CrystalLocked1khzOscillator/"/>
2710.    <updated>2019-08-12T05:18:25Z</updated>
2711.    <title>#487 Crystal-locked 1kHz Oscillator</title>
2712.    <summary>a 4.096MHz crystal oscillator divided by a CD4060, governing a wien-bridge oscillator to produce buffered sine and square wave outputs locked at 1kHz</summary>
2713.    <g:image_link>https://leap.tardate.com/Electronics101/Oscillators/CrystalLocked1khzOscillator/assets/CrystalLocked1khzOscillator_build.jpg</g:image_link>
2714.    <category term="Oscillators"/>
2715.  </entry>
2716.  <entry>
2717.    <id>https://leap.tardate.com/playground/UsingTemplates/</id>
2718.    <link href="https://leap.tardate.com/playground/UsingTemplates/"/>
2719.    <updated>2019-07-21T18:12:55Z</updated>
2720.    <title>#486 Using C++ Templates</title>
2721.    <summary>Learning how to use C++ template functions in embedded projects with an Arduino</summary>
2722.    <g:image_link>https://leap.tardate.com/playground/UsingTemplates/assets/UsingTemplates_build.jpg</g:image_link>
2723.    <category term="Arduino"/>
2724.    <category term="C++"/>
2725.  </entry>
2726.  <entry>
2727.    <id>https://leap.tardate.com/playground/RFID/CardCounter/</id>
2728.    <link href="https://leap.tardate.com/playground/RFID/CardCounter/"/>
2729.    <updated>2019-07-21T18:12:55Z</updated>
2730.    <title>#485 RFID Card Counter</title>
2731.    <summary>Simple demonstratration of reading an writing value blocks with an RC522 RFID reader and MIFARE Classic cards</summary>
2732.    <g:image_link>https://leap.tardate.com/playground/RFID/CardCounter/assets/CardCounter_build.jpg</g:image_link>
2733.    <category term="RFID"/>
2734.    <category term="Arduino"/>
2735.  </entry>
2736.  <entry>
2737.    <id>https://leap.tardate.com/Electronics101/Oscillators/CrystalLocked455kHzModulated/</id>
2738.    <link href="https://leap.tardate.com/Electronics101/Oscillators/CrystalLocked455kHzModulated/"/>
2739.    <updated>2019-05-31T14:21:04Z</updated>
2740.    <title>#484 Crystal-Locked 455 kHz AM Oscillator</title>
2741.    <summary>crystal-locked 455 kHz carrier oscillator with fixed-frequency audio tone amplitude modulation (AM) for IF alignment</summary>
2742.    <g:image_link>https://leap.tardate.com/Electronics101/Oscillators/CrystalLocked455kHzModulated/assets/CrystalLocked455kHzModulated_build.jpg</g:image_link>
2743.    <category term="Radio"/>
2744.    <category term="Oscillators"/>
2745.  </entry>
2746.  <entry>
2747.    <id>https://leap.tardate.com/Kraft/WyLed/</id>
2748.    <link href="https://leap.tardate.com/Kraft/WyLed/"/>
2749.    <updated>2019-05-26T11:40:18Z</updated>
2750.    <title>#483 WyLed</title>
2751.    <summary>.. when you allow an exploration of a chip (TM1638) to get a little out of hand! The WyLed free-form sculpture reacts to sound and blinks a 4-digit LED display. An ATTiny85 provides a little brain, and the TM1638 handles all input and output.</summary>
2752.    <g:image_link>https://leap.tardate.com/Kraft/WyLed/assets/WyLed_build.jpg</g:image_link>
2753.    <category term="Arduino"/>
2754.    <category term="ATmel"/>
2755.    <category term="LED"/>
2756.    <category term="TM1638"/>
2757.    <category term="Circuit Sculpture"/>
2758.    <category term="Freeform"/>
2759.  </entry>
2760.  <entry>
2761.    <id>https://leap.tardate.com/Electronics101/Electret/SoundLevelTrigger/</id>
2762.    <link href="https://leap.tardate.com/Electronics101/Electret/SoundLevelTrigger/"/>
2763.    <updated>2019-05-26T11:40:18Z</updated>
2764.    <title>#482 Electret Sound-level Trigger</title>
2765.    <summary>a simple circuit using a TL072 op-amp and 74LS14 inverter for getting a clear digital trigger signal based on the sound level detected by an electret microphone</summary>
2766.    <g:image_link>https://leap.tardate.com/Electronics101/Electret/SoundLevelTrigger/assets/SoundLevelTrigger_build.jpg</g:image_link>
2767.    <category term="Electret"/>
2768.    <category term="Audio"/>
2769.    <category term="Sensor"/>
2770.  </entry>
2771.  <entry>
2772.    <id>https://leap.tardate.com/playground/LED7Segment/TM1638/</id>
2773.    <link href="https://leap.tardate.com/playground/LED7Segment/TM1638/"/>
2774.    <updated>2019-05-26T11:40:18Z</updated>
2775.    <title>#481 TM1638 7-Segment LED Driver</title>
2776.    <summary>investigating the capabilities of the TM1638 as a 7-segment display driver and key pad controller</summary>
2777.    <g:image_link>https://leap.tardate.com/playground/LED7Segment/TM1638/assets/TM1638_build.jpg</g:image_link>
2778.    <category term="7-Segment"/>
2779.    <category term="Arduino"/>
2780.    <category term="LED"/>
2781.    <category term="TM1638"/>
2782.  </entry>
2783.  <entry>
2784.    <id>https://leap.tardate.com/playground/LED7Segment/</id>
2785.    <link href="https://leap.tardate.com/playground/LED7Segment/"/>
2786.    <updated>2016-06-23T14:50:15Z</updated>
2787.    <title>#480 7-Segment LED Displays</title>
2788.    <summary>All about LED 7-segment displays</summary>
2789.    <g:image_link>https://leap.tardate.com/playground/LED7Segment/assets/LED7Segment_build.jpg</g:image_link>
2790.    <category term="7-Segment"/>
2791.    <category term="LED"/>
2792.  </entry>
2793.  <entry>
2794.    <id>https://leap.tardate.com/playground/LED7Segment/MAX7219/LedControlDemo/</id>
2795.    <link href="https://leap.tardate.com/playground/LED7Segment/MAX7219/LedControlDemo/"/>
2796.    <updated>2019-05-26T11:40:18Z</updated>
2797.    <title>#479 LedControl MAX7219 7-Segment LED Driver</title>
2798.    <summary>Driving a series of 7-segment LED displays with the MAX7219 and the LedControl library</summary>
2799.    <g:image_link>https://leap.tardate.com/playground/LED7Segment/MAX7219/LedControlDemo/assets/LedControlDemo_build.jpg</g:image_link>
2800.    <category term="7-Segment"/>
2801.    <category term="Arduino"/>
2802.    <category term="LED"/>
2803.    <category term="MAX7219"/>
2804.  </entry>
2805.  <entry>
2806.    <id>https://leap.tardate.com/playground/LED7Segment/MAX7219/RawDrive/</id>
2807.    <link href="https://leap.tardate.com/playground/LED7Segment/MAX7219/RawDrive/"/>
2808.    <updated>2019-05-05T11:19:13Z</updated>
2809.    <title>#478 Raw MAX7219 7-Segment LED Driver</title>
2810.    <summary>Driving a series of 7-segment LED displays with the MAX7219 and raw SPI commands</summary>
2811.    <g:image_link>https://leap.tardate.com/playground/LED7Segment/MAX7219/RawDrive/assets/RawDrive_build.jpg</g:image_link>
2812.    <category term="7-Segment"/>
2813.    <category term="Arduino"/>
2814.    <category term="LED"/>
2815.    <category term="MAX7219"/>
2816.  </entry>
2817.  <entry>
2818.    <id>https://leap.tardate.com/Audio/RakitDrumSynth/</id>
2819.    <link href="https://leap.tardate.com/Audio/RakitDrumSynth/"/>
2820.    <updated>2019-05-05T11:19:13Z</updated>
2821.    <title>#477 Rakit Drum Synth</title>
2822.    <summary>building the Rakit Drum Synth kit - a very nicely produced clone of the classic Boss PC-2/AMDEK PCK-100 percussion synthesizer</summary>
2823.    <g:image_link>https://leap.tardate.com/Audio/RakitDrumSynth/assets/RakitDrumSynth_build.jpg</g:image_link>
2824.    <category term="Audio"/>
2825.    <category term="Drum"/>
2826.    <category term="Synth"/>
2827.    <category term="Music"/>
2828.  </entry>
2829.  <entry>
2830.    <id>https://leap.tardate.com/Radio/FM/SimplestDirectReceiver/</id>
2831.    <link href="https://leap.tardate.com/Radio/FM/SimplestDirectReceiver/"/>
2832.    <updated>2019-04-28T10:42:00Z</updated>
2833.    <title>#476 Simplest Direct FM Receiver</title>
2834.    <summary>Taming a very simple direct conversion FM receiver</summary>
2835.    <g:image_link>https://leap.tardate.com/Radio/FM/SimplestDirectReceiver/assets/SimplestDirectReceiver_build.jpg</g:image_link>
2836.    <category term="Radio"/>
2837.    <category term="FM"/>
2838.  </entry>
2839.  <entry>
2840.    <id>https://leap.tardate.com/Equipment/ANG860B/</id>
2841.    <link href="https://leap.tardate.com/Equipment/ANG860B/"/>
2842.    <updated>2019-04-27T11:59:59Z</updated>
2843.    <title>#475 ANG860B</title>
2844.    <summary>specifications and notes on the ANENG ANG860B+ digital multimeter</summary>
2845.    <g:image_link>https://leap.tardate.com/Equipment/ANG860B/assets/ANG860B_build.jpg</g:image_link>
2846.    <category term="Tools"/>
2847.    <category term="Test Equipment"/>
2848.    <category term="DMM"/>
2849.  </entry>
2850.  <entry>
2851.    <id>https://leap.tardate.com/Audio/AudioEffects/WhiteNoiseGenerator/</id>
2852.    <link href="https://leap.tardate.com/Audio/AudioEffects/WhiteNoiseGenerator/"/>
2853.    <updated>2020-06-06T18:36:43Z</updated>
2854.    <title>#474 BJT White Noise Generator</title>
2855.    <summary>Building a common white noise generator circuit and optimising it for 9V operation with BC337 transistors</summary>
2856.    <g:image_link>https://leap.tardate.com/Audio/AudioEffects/WhiteNoiseGenerator/assets/WhiteNoiseGenerator_build.jpg</g:image_link>
2857.    <category term="Audio"/>
2858.    <category term="BJT"/>
2859.  </entry>
2860.  <entry>
2861.    <id>https://leap.tardate.com/Kraft/xdiskclk/</id>
2862.    <link href="https://leap.tardate.com/Kraft/xdiskclk/"/>
2863.    <updated>2019-04-25T15:07:18Z</updated>
2864.    <title>#473 xdiskclk</title>
2865.    <summary>An old 3.5 inch disk drive was begging to be disassembled and transformed with the addition of a simple clock mechanism to produce the ex-disk-clock</summary>
2866.    <g:image_link>https://leap.tardate.com/Kraft/xdiskclk/assets/xdiskclk_build.jpg</g:image_link>
2867.    <category term="Craft"/>
2868.    <category term="Clock"/>
2869.  </entry>
2870.  <entry>
2871.    <id>https://leap.tardate.com/Electronics101/Power/CapacitiveDropper/</id>
2872.    <link href="https://leap.tardate.com/Electronics101/Power/CapacitiveDropper/"/>
2873.    <updated>2019-04-21T08:16:06Z</updated>
2874.    <title>#472 CapacitiveDropper</title>
2875.    <summary>Understanding how to design a capacitive dropper, and demonstration with a low-voltage LED driver circuit</summary>
2876.    <g:image_link>https://leap.tardate.com/Electronics101/Power/CapacitiveDropper/assets/CapacitiveDropper_build.jpg</g:image_link>
2877.    <category term="Power"/>
2878.  </entry>
2879.  <entry>
2880.    <id>https://leap.tardate.com/Electronics101/LED/FluorescentRingReplacement/</id>
2881.    <link href="https://leap.tardate.com/Electronics101/LED/FluorescentRingReplacement/"/>
2882.    <updated>2019-04-21T08:16:06Z</updated>
2883.    <title>#471 Fluorescent Ring LED Replacement</title>
2884.    <summary>Understanding fluorescent lighting and installing an LED replacement</summary>
2885.    <g:image_link>https://leap.tardate.com/Electronics101/LED/FluorescentRingReplacement/assets/FluorescentRingReplacement_build.jpg</g:image_link>
2886.    <category term="LED"/>
2887.    <category term="Power"/>
2888.    <category term="Lighting"/>
2889.  </entry>
2890.  <entry>
2891.    <id>https://leap.tardate.com/Radio/AM/SimpleCrystalTransmitter/</id>
2892.    <link href="https://leap.tardate.com/Radio/AM/SimpleCrystalTransmitter/"/>
2893.    <updated>2019-04-20T06:52:07Z</updated>
2894.    <title>#470 Simple Crystal AM Transmitter</title>
2895.    <summary>building a classic crystal-locked AM transmitter with a 1MHz MCO-1510A CMOS crystal oscillator</summary>
2896.    <g:image_link>https://leap.tardate.com/Radio/AM/SimpleCrystalTransmitter/assets/SimpleCrystalTransmitter_build.jpg</g:image_link>
2897.    <category term="Radio"/>
2898.    <category term="AM"/>
2899.    <category term="Transmitter"/>
2900.  </entry>
2901.  <entry>
2902.    <id>https://leap.tardate.com/Electronics101/BreadboardBling/LM386AudioAmp/</id>
2903.    <link href="https://leap.tardate.com/Electronics101/BreadboardBling/LM386AudioAmp/"/>
2904.    <updated>2019-04-15T12:26:29Z</updated>
2905.    <title>#469 LM386 Audio Amp</title>
2906.    <summary>A basic LM386 audio amplifier with volume and gain control on a breadboard-compatbile mounting</summary>
2907.    <g:image_link>https://leap.tardate.com/Electronics101/BreadboardBling/LM386AudioAmp/assets/LM386AudioAmp_build.jpg</g:image_link>
2908.    <category term="Breadboard Bling"/>
2909.    <category term="Audio"/>
2910.    <category term="OpAmp"/>
2911.  </entry>
2912.  <entry>
2913.    <id>https://leap.tardate.com/Electronics101/BreadboardBling/DuplexTuningCapacitor/</id>
2914.    <link href="https://leap.tardate.com/Electronics101/BreadboardBling/DuplexTuningCapacitor/"/>
2915.    <updated>2019-04-09T14:50:13Z</updated>
2916.    <title>#468 Duplex Tuning Capacitor</title>
2917.    <summary>making a breadboard-compatible variable capacitor for radio circuits</summary>
2918.    <g:image_link>https://leap.tardate.com/Electronics101/BreadboardBling/DuplexTuningCapacitor/assets/DuplexTuningCapacitor_build.jpg</g:image_link>
2919.    <category term="Breadboard Bling"/>
2920.    <category term="Radio"/>
2921.  </entry>
2922.  <entry>
2923.    <id>https://leap.tardate.com/Radio/FM/TwoStageTransmitter/</id>
2924.    <link href="https://leap.tardate.com/Radio/FM/TwoStageTransmitter/"/>
2925.    <updated>2019-04-08T02:06:47Z</updated>
2926.    <title>#467 Two-stage FM Transmitter</title>
2927.    <summary>build and test a simple two-stage FM transmitter</summary>
2928.    <g:image_link>https://leap.tardate.com/Radio/FM/TwoStageTransmitter/assets/TwoStageTransmitter_build.jpg</g:image_link>
2929.    <category term="Radio"/>
2930.    <category term="FM"/>
2931.  </entry>
2932.  <entry>
2933.    <id>https://leap.tardate.com/Equipment/VC3165/</id>
2934.    <link href="https://leap.tardate.com/Equipment/VC3165/"/>
2935.    <updated>2019-04-07T03:57:01Z</updated>
2936.    <title>#466 VC3165</title>
2937.    <summary>all about the Victor VC3165 frequency counter</summary>
2938.    <g:image_link>https://leap.tardate.com/Equipment/VC3165/assets/VC3165_build.jpg</g:image_link>
2939.    <category term="Tools"/>
2940.    <category term="Test Equipment"/>
2941.  </entry>
2942.  <entry>
2943.    <id>https://leap.tardate.com/Electronics101/BJT/MrBiJuT/</id>
2944.    <link href="https://leap.tardate.com/Electronics101/BJT/MrBiJuT/"/>
2945.    <updated>2019-04-05T15:21:20Z</updated>
2946.    <title>#465 MrBiJuT</title>
2947.    <summary>Mr BiJuT is a freeform realisation of a simple NPN/PNP transistor testing circuit using a CD4011 Schmitt oscillator</summary>
2948.    <g:image_link>https://leap.tardate.com/Electronics101/BJT/MrBiJuT/assets/MrBiJuT_build.jpg</g:image_link>
2949.    <category term="BJT"/>
2950.    <category term="Test Equipment"/>
2951.    <category term="Oscillators"/>
2952.    <category term="Circuit Sculpture"/>
2953.    <category term="Freeform"/>
2954.  </entry>
2955.  <entry>
2956.    <id>https://leap.tardate.com/Radio/AM/SingleTransistorTransmitter/</id>
2957.    <link href="https://leap.tardate.com/Radio/AM/SingleTransistorTransmitter/"/>
2958.    <updated>2019-03-26T11:22:03Z</updated>
2959.    <title>#464 Single Transistor AM Transmitter</title>
2960.    <summary>building a low power, single transistor AM transmitter with surprisingly good fidelity</summary>
2961.    <g:image_link>https://leap.tardate.com/Radio/AM/SingleTransistorTransmitter/assets/SingleTransistorTransmitter_build.jpg</g:image_link>
2962.    <category term="Radio"/>
2963.    <category term="AM"/>
2964.    <category term="Transmitter"/>
2965.  </entry>
2966.  <entry>
2967.    <id>https://leap.tardate.com/Electronics101/OpAmp/Transconductance/</id>
2968.    <link href="https://leap.tardate.com/Electronics101/OpAmp/Transconductance/"/>
2969.    <updated>2019-03-22T15:06:42Z</updated>
2970.    <title>#463 OpAmp Transconductance Amplifiers</title>
2971.    <summary>understanding transconductance amplifiers and how they can be realised with an op-amp, and testing both single and dual-supply transconductance circuits based on an LM741 op-amp</summary>
2972.    <g:image_link>https://leap.tardate.com/Electronics101/OpAmp/Transconductance/assets/Transconductance_build.jpg</g:image_link>
2973.    <category term="OpAmp"/>
2974.  </entry>
2975.  <entry>
2976.    <id>https://leap.tardate.com/Radio/AM/HX108-2/</id>
2977.    <link href="https://leap.tardate.com/Radio/AM/HX108-2/"/>
2978.    <updated>2019-03-18T15:30:49Z</updated>
2979.    <title>#462 HX108-2</title>
2980.    <summary>build and analyse the HX108-2 superheterodyne AM MW radio receiver kit</summary>
2981.    <g:image_link>https://leap.tardate.com/Radio/AM/HX108-2/assets/HX108-2_build.jpg</g:image_link>
2982.    <category term="Radio"/>
2983.    <category term="AM"/>
2984.  </entry>
2985.  <entry>
2986.    <id>https://leap.tardate.com/Electronics101/GuitarEffects/Goblin/</id>
2987.    <link href="https://leap.tardate.com/Electronics101/GuitarEffects/Goblin/"/>
2988.    <updated>2019-03-11T15:50:20Z</updated>
2989.    <title>#461 Goblin</title>
2990.    <summary>the Goblin is what I'm calling my remake of the classic Ibanez Tube Screamer 808, after researching how the circuit works and common modifications</summary>
2991.    <g:image_link>https://leap.tardate.com/Electronics101/GuitarEffects/Goblin/assets/Goblin_build.jpg</g:image_link>
2992.    <category term="Guitar Effects"/>
2993.    <category term="Audio"/>
2994.  </entry>
2995.  <entry>
2996.    <id>https://leap.tardate.com/Audio/AudioEffects/CANary/</id>
2997.    <link href="https://leap.tardate.com/Audio/AudioEffects/CANary/"/>
2998.    <updated>2020-06-06T18:36:43Z</updated>
2999.    <title>#460 CANary</title>
3000.    <summary>playing with a popular 74HC14 bird chirp effect by Wilf Rigter and making a CANary sculpture</summary>
3001.    <g:image_link>https://leap.tardate.com/Audio/AudioEffects/CANary/assets/CANary_build.jpg</g:image_link>
3002.    <category term="BEAM"/>
3003.    <category term="Oscillators"/>
3004.    <category term="Audio"/>
3005.  </entry>
3006.  <entry>
3007.    <id>https://leap.tardate.com/Electronics101/OpAmp/TwinTeeOscillator/</id>
3008.    <link href="https://leap.tardate.com/Electronics101/OpAmp/TwinTeeOscillator/"/>
3009.    <updated>2019-03-05T14:24:38Z</updated>
3010.    <title>#459 Twin-Tee OpAmp Oscillator</title>
3011.    <summary>a twin-tee sine wave oscillator using an TL072 Op-Amp, running in the audio spectrum</summary>
3012.    <g:image_link>https://leap.tardate.com/Electronics101/OpAmp/TwinTeeOscillator/assets/TwinTeeOscillator_build.jpg</g:image_link>
3013.    <category term="OpAmp"/>
3014.    <category term="Oscillators"/>
3015.  </entry>
3016.  <entry>
3017.    <id>https://leap.tardate.com/playground/FastAnalogRead/</id>
3018.    <link href="https://leap.tardate.com/playground/FastAnalogRead/"/>
3019.    <updated>2019-03-05T04:11:15Z</updated>
3020.    <title>#458 FastAnalogRead</title>
3021.    <summary>how to increase the Arduino ADC analog sampling rate</summary>
3022.    <g:image_link>https://leap.tardate.com/playground/FastAnalogRead/assets/FastAnalogRead_build.jpg</g:image_link>
3023.    <category term="Arduino"/>
3024.    <category term="GPIO"/>
3025.  </entry>
3026.  <entry>
3027.    <id>https://leap.tardate.com/playground/PrecisionTimer/</id>
3028.    <link href="https://leap.tardate.com/playground/PrecisionTimer/"/>
3029.    <updated>2019-03-05T03:49:15Z</updated>
3030.    <title>#457 PrecisionTimer</title>
3031.    <summary>comparing the precision and constraints of various methods for timing an operation with an Atmega328, with some discussion of the timer/counter features of the chip</summary>
3032.    <g:image_link>https://leap.tardate.com/playground/PrecisionTimer/assets/PrecisionTimer_build.jpg</g:image_link>
3033.    <category term="Arduino"/>
3034.  </entry>
3035.  <entry>
3036.    <id>https://leap.tardate.com/BoldportClub/pease-out/</id>
3037.    <link href="https://leap.tardate.com/BoldportClub/pease-out/"/>
3038.    <updated>2019-02-21T14:50:29Z</updated>
3039.    <title>#456 BoldportClub/pease-out</title>
3040.    <summary>an audio voltage indicator based on the Boldport Club Pease-out, Project #32 Jan 2019</summary>
3041.    <g:image_link>https://leap.tardate.com/BoldportClub/pease-out/assets/pease-out_build.jpg</g:image_link>
3042.    <category term="Boldport"/>
3043.    <category term="PCB Design"/>
3044.    <category term="LM331"/>
3045.  </entry>
3046.  <entry>
3047.    <id>https://leap.tardate.com/Electronics101/PiezoBuzzers/</id>
3048.    <link href="https://leap.tardate.com/Electronics101/PiezoBuzzers/"/>
3049.    <updated>2019-02-21T14:50:29Z</updated>
3050.    <title>#455 Piezo Transducers and Buzzers</title>
3051.    <summary>exploring techniques for driving piezo transducers and buzzer units for audio output</summary>
3052.    <g:image_link>https://leap.tardate.com/Electronics101/PiezoBuzzers/assets/PiezoBuzzers_build.jpg</g:image_link>
3053.    <category term="Oscillators"/>
3054.    <category term="Crystal"/>
3055.    <category term="Audio"/>
3056.  </entry>
3057.  <entry>
3058.    <id>https://leap.tardate.com/Electronics101/VoltageReference/ADR4540/</id>
3059.    <link href="https://leap.tardate.com/Electronics101/VoltageReference/ADR4540/"/>
3060.    <updated>2019-02-21T14:50:29Z</updated>
3061.    <title>#454 VoltageReference/ADR4540</title>
3062.    <summary>exploring the ADR4540 precision reference, tested with an Arduino as an external voltage reference</summary>
3063.    <g:image_link>https://leap.tardate.com/Electronics101/VoltageReference/ADR4540/assets/ADR4540_build.jpg</g:image_link>
3064.    <category term="Voltage Reference"/>
3065.  </entry>
3066.  <entry>
3067.    <id>https://leap.tardate.com/Electronics101/BreadboardBling/PotModules/</id>
3068.    <link href="https://leap.tardate.com/Electronics101/BreadboardBling/PotModules/"/>
3069.    <updated>2019-02-21T14:50:29Z</updated>
3070.    <title>#453 PotModules</title>
3071.    <summary>Making some breadboard-compatible potentiometers and covering some basics of terminology, Ohm's Law and voltage dividers</summary>
3072.    <g:image_link>https://leap.tardate.com/Electronics101/BreadboardBling/PotModules/assets/PotModules_build.jpg</g:image_link>
3073.    <category term="Breadboard Bling"/>
3074.  </entry>
3075.  <entry>
3076.    <id>https://leap.tardate.com/Electronics101/CD4046/MainsLinkedPLL/</id>
3077.    <link href="https://leap.tardate.com/Electronics101/CD4046/MainsLinkedPLL/"/>
3078.    <updated>2019-02-21T14:50:29Z</updated>
3079.    <title>#452 CD4046/MainsLinkedPLL</title>
3080.    <summary>A 50/60Hz oscillator locked to mains power frequency using the CD4046 PLL</summary>
3081.    <g:image_link>https://leap.tardate.com/Electronics101/CD4046/MainsLinkedPLL/assets/MainsLinkedPLL_build.jpg</g:image_link>
3082.    <category term="Oscillators"/>
3083.    <category term="PLL"/>
3084.  </entry>
3085.  <entry>
3086.    <id>https://leap.tardate.com/Electronics101/ArcGeneratorKit/</id>
3087.    <link href="https://leap.tardate.com/Electronics101/ArcGeneratorKit/"/>
3088.    <updated>2019-02-21T14:50:29Z</updated>
3089.    <title>#451 ArcGeneratorKit</title>
3090.    <summary>playing with a high-voltage arc generator kit that uses step-up transformer with a simple feedback control of a D882 power transistor</summary>
3091.    <g:image_link>https://leap.tardate.com/Electronics101/ArcGeneratorKit/assets/ArcGeneratorKit_build.jpg</g:image_link>
3092.    <category term="Power"/>
3093.  </entry>
3094.  <entry>
3095.    <id>https://leap.tardate.com/Equipment/LCR45/</id>
3096.    <link href="https://leap.tardate.com/Equipment/LCR45/"/>
3097.    <updated>2019-02-21T14:50:29Z</updated>
3098.    <title>#450 LCR45</title>
3099.    <summary>evaluating the Peak LCR45 inductance, capacitance and resistance meter</summary>
3100.    <g:image_link>https://leap.tardate.com/Equipment/LCR45/assets/LCR45_build.jpg</g:image_link>
3101.    <category term="Tools"/>
3102.    <category term="Test Equipment"/>
3103.  </entry>
3104.  <entry>
3105.    <id>https://leap.tardate.com/Audio/AudioEffects/Parrot/</id>
3106.    <link href="https://leap.tardate.com/Audio/AudioEffects/Parrot/"/>
3107.    <updated>2020-06-06T18:36:43Z</updated>
3108.    <title>#449 Parrot</title>
3109.    <summary>playing with a 1-transistor, dual oscillator chirping sound effect circuit</summary>
3110.    <g:image_link>https://leap.tardate.com/Audio/AudioEffects/Parrot/assets/Parrot_build.jpg</g:image_link>
3111.    <category term="Audio"/>
3112.    <category term="BEAM"/>
3113.    <category term="Oscillators"/>
3114.  </entry>
3115.  <entry>
3116.    <id>https://leap.tardate.com/Electronics101/ADC/LTC2400/</id>
3117.    <link href="https://leap.tardate.com/Electronics101/ADC/LTC2400/"/>
3118.    <updated>2019-01-28T18:20:45Z</updated>
3119.    <title>#448 LTC2400</title>
3120.    <summary>exploring the tips and traps involved in getting accurate readings from the LTC2400 24-bit ADC</summary>
3121.    <g:image_link>https://leap.tardate.com/Electronics101/ADC/LTC2400/assets/LTC2400_build.jpg</g:image_link>
3122.    <category term="ADC"/>
3123.  </entry>
3124.  <entry>
3125.    <id>https://leap.tardate.com/BoldportClub/capacimeter/</id>
3126.    <link href="https://leap.tardate.com/BoldportClub/capacimeter/"/>
3127.    <updated>2020-03-14T16:56:38Z</updated>
3128.    <title>#447 Capacimeter</title>
3129.    <summary>measuring capacitance with old-school 555 and 4017 digital logic - a Boldport Club remix of a PEAK, Project #31, December 2018</summary>
3130.    <g:image_link>https://leap.tardate.com/BoldportClub/capacimeter/assets/capacimeter_build.jpg</g:image_link>
3131.    <category term="Boldport"/>
3132.    <category term="Tools"/>
3133.    <category term="Test Equipment"/>
3134.  </entry>
3135.  <entry>
3136.    <id>https://leap.tardate.com/Electronics101/ToroidJouleThief/RgbNightLight/</id>
3137.    <link href="https://leap.tardate.com/Electronics101/ToroidJouleThief/RgbNightLight/"/>
3138.    <updated>2019-01-06T11:54:51Z</updated>
3139.    <title>#446 RGB Joule Thief Night Light</title>
3140.    <summary>testing a slow-flash RGB LED with a 1.5V joule thief power supply</summary>
3141.    <g:image_link>https://leap.tardate.com/Electronics101/ToroidJouleThief/RgbNightLight/assets/RgbNightLight_build.jpg</g:image_link>
3142.    <category term="LED"/>
3143.    <category term="Power"/>
3144.  </entry>
3145.  <entry>
3146.    <id>https://leap.tardate.com/Electronics101/555Timer/VariableDutyCycle/ControlAdjust/</id>
3147.    <link href="https://leap.tardate.com/Electronics101/555Timer/VariableDutyCycle/ControlAdjust/"/>
3148.    <updated>2019-01-01T13:33:20Z</updated>
3149.    <title>#445 VariableDutyCycle/ControlAdjust</title>
3150.    <summary>using the control pin to adjust duty cycle of a 555 Timer astable oscillator</summary>
3151.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/VariableDutyCycle/ControlAdjust/assets/ControlAdjust_build.jpg</g:image_link>
3152.    <category term="555 Timer"/>
3153.    <category term="Oscillators"/>
3154.  </entry>
3155.  <entry>
3156.    <id>https://leap.tardate.com/Electronics101/555Timer/VariableDutyCycle/DiodeSteering/</id>
3157.    <link href="https://leap.tardate.com/Electronics101/555Timer/VariableDutyCycle/DiodeSteering/"/>
3158.    <updated>2019-01-01T10:55:42Z</updated>
3159.    <title>#444 VariableDutyCycle/DiodeSteering</title>
3160.    <summary>using diode steering to achieve adjustable duty cycle at fixed frequency in a 555 Timer astable oscillator</summary>
3161.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/VariableDutyCycle/DiodeSteering/assets/DiodeSteering_build.jpg</g:image_link>
3162.    <category term="555 Timer"/>
3163.    <category term="Oscillators"/>
3164.  </entry>
3165.  <entry>
3166.    <id>https://leap.tardate.com/ARM/STM32F103C8T6/BluePill/LCD16x2/</id>
3167.    <link href="https://leap.tardate.com/ARM/STM32F103C8T6/BluePill/LCD16x2/"/>
3168.    <updated>2020-05-31T20:36:41Z</updated>
3169.    <title>#443 BluePill 16x2 LCD</title>
3170.    <summary>using a 16x2 LCD with an ARM Cortex-M3 STM32F103C8T6 Blue Pill board and programmed the Arduino IDE</summary>
3171.    <g:image_link>https://leap.tardate.com/ARM/STM32F103C8T6/BluePill/LCD16x2/assets/LCD16x2_build.jpg</g:image_link>
3172.    <category term="STM32"/>
3173.    <category term="LCD"/>
3174.  </entry>
3175.  <entry>
3176.    <id>https://leap.tardate.com/BoldportClub/respot/</id>
3177.    <link href="https://leap.tardate.com/BoldportClub/respot/"/>
3178.    <updated>2019-01-01T04:55:02Z</updated>
3179.    <title>#442 BoldportClub/respot</title>
3180.    <summary>Boldport puts the &quot;pot&quot; back in the resistance, a classic decade resistor box in custom pots</summary>
3181.    <g:image_link>https://leap.tardate.com/BoldportClub/respot/assets/respot_build.jpg</g:image_link>
3182.    <category term="Boldport"/>
3183.    <category term="Tools"/>
3184.    <category term="Test Equipment"/>
3185.  </entry>
3186.  <entry>
3187.    <id>https://leap.tardate.com/Kraft/Pollen8/</id>
3188.    <link href="https://leap.tardate.com/Kraft/Pollen8/"/>
3189.    <updated>2019-01-01T04:55:02Z</updated>
3190.    <title>#441 Pollen8</title>
3191.    <summary>a freeform wire sculpture with LEDs driven by a light-sensitive 555/4017 counter circuit</summary>
3192.    <g:image_link>https://leap.tardate.com/Kraft/Pollen8/assets/Pollen8_build.jpg</g:image_link>
3193.    <category term="LED"/>
3194.    <category term="CMOS/TTL"/>
3195.    <category term="555 Timer"/>
3196.    <category term="Craft"/>
3197.    <category term="Circuit Sculpture"/>
3198.    <category term="Freeform"/>
3199.  </entry>
3200.  <entry>
3201.    <id>https://leap.tardate.com/playground/DataLogging/VoltageToAdafruitIO/</id>
3202.    <link href="https://leap.tardate.com/playground/DataLogging/VoltageToAdafruitIO/"/>
3203.    <updated>2019-01-01T04:55:02Z</updated>
3204.    <title>#440 DataLogging/VoltageToAdafruitIO</title>
3205.    <summary>using Adafruit IO and an Ethernet shield to collect analog measurements to the cloud with MQTT</summary>
3206.    <g:image_link>https://leap.tardate.com/playground/DataLogging/VoltageToAdafruitIO/assets/VoltageToAdafruitIO_build.jpg</g:image_link>
3207.    <category term="Sensors"/>
3208.    <category term="Cloud"/>
3209.    <category term="MQTT"/>
3210.    <category term="Data Logging"/>
3211.  </entry>
3212.  <entry>
3213.    <id>https://leap.tardate.com/Electronics101/LedDrivers/QX5252SolarNightLight/</id>
3214.    <link href="https://leap.tardate.com/Electronics101/LedDrivers/QX5252SolarNightLight/"/>
3215.    <updated>2019-01-01T04:55:02Z</updated>
3216.    <title>#439 QX5252SolarNightLight</title>
3217.    <summary>exploring the circuit inside most garden solar lights, which uses a QX5252/YX805 boost and charge controller</summary>
3218.    <g:image_link>https://leap.tardate.com/Electronics101/LedDrivers/QX5252SolarNightLight/assets/QX5252SolarNightLight_build.jpg</g:image_link>
3219.    <category term="Power"/>
3220.    <category term="LED"/>
3221.    <category term="Solar"/>
3222.  </entry>
3223.  <entry>
3224.    <id>https://leap.tardate.com/playground/RFID/DeviceDumper/</id>
3225.    <link href="https://leap.tardate.com/playground/RFID/DeviceDumper/"/>
3226.    <updated>2019-01-01T04:55:02Z</updated>
3227.    <title>#438 RFID Device Dumper</title>
3228.    <summary>getting started with some RFID research and using an RC522 RFID reader with MIFARE Classic cards and tags</summary>
3229.    <g:image_link>https://leap.tardate.com/playground/RFID/DeviceDumper/assets/DeviceDumper_build.jpg</g:image_link>
3230.    <category term="RFID"/>
3231.    <category term="Arduino"/>
3232.  </entry>
3233.  <entry>
3234.    <id>https://leap.tardate.com/Electronics101/LedDrivers/QX5252JouleThief/</id>
3235.    <link href="https://leap.tardate.com/Electronics101/LedDrivers/QX5252JouleThief/"/>
3236.    <updated>2019-01-01T04:55:02Z</updated>
3237.    <title>#437 QX5252JouleThief</title>
3238.    <summary>using a QX5252/YX805 LED driver chip as a joule thief for driving an LED from a low-voltage battery</summary>
3239.    <g:image_link>https://leap.tardate.com/Electronics101/LedDrivers/QX5252JouleThief/assets/QX5252JouleThief_build.jpg</g:image_link>
3240.    <category term="Power"/>
3241.    <category term="LED"/>
3242.  </entry>
3243.  <entry>
3244.    <id>https://leap.tardate.com/Kinetics/BEAM/Vivian/</id>
3245.    <link href="https://leap.tardate.com/Kinetics/BEAM/Vivian/"/>
3246.    <updated>2019-01-01T04:55:02Z</updated>
3247.    <title>#436 Vivian</title>
3248.    <summary>a BEAM Vibrobot using a classic solar-powered FLED circuit enhanced with a QX5252/YX805 solar LED driver</summary>
3249.    <g:image_link>https://leap.tardate.com/Kinetics/BEAM/Vivian/assets/Vivian_build.jpg</g:image_link>
3250.    <category term="BEAM"/>
3251.    <category term="Robotics"/>
3252.  </entry>
3253.  <entry>
3254.    <id>https://leap.tardate.com/Kinetics/BEAM/</id>
3255.    <link href="https://leap.tardate.com/Kinetics/BEAM/"/>
3256.    <updated>2019-01-01T04:55:02Z</updated>
3257.    <title>#435 BEAM</title>
3258.    <summary>a quick survey of the BEAM (Biology, Electronics, Aesthetics and Mechanics) field</summary>
3259.    <g:image_link>https://leap.tardate.com/Kinetics/BEAM/assets/BEAM_build.jpg</g:image_link>
3260.    <category term="BEAM"/>
3261.    <category term="Robotics"/>
3262.  </entry>
3263.  <entry>
3264.    <id>https://leap.tardate.com/BoldportClub/krell/</id>
3265.    <link href="https://leap.tardate.com/BoldportClub/krell/"/>
3266.    <updated>2019-01-01T04:55:02Z</updated>
3267.    <title>#434 BoldportClub/krell</title>
3268.    <summary>building the Boldport Krell: a handheld DSP synthesiser built around a Microchip dsPIC and a design from madlab</summary>
3269.    <g:image_link>https://leap.tardate.com/BoldportClub/krell/assets/krell_build.jpg</g:image_link>
3270.    <category term="Boldport"/>
3271.    <category term="PCB Design"/>
3272.    <category term="Audio"/>
3273.  </entry>
3274.  <entry>
3275.    <id>https://leap.tardate.com/Equipment/AdjustablePowerSupplyKit/</id>
3276.    <link href="https://leap.tardate.com/Equipment/AdjustablePowerSupplyKit/"/>
3277.    <updated>2018-11-11T14:28:17Z</updated>
3278.    <title>#433 AdjustablePowerSupplyKit</title>
3279.    <summary>building a popular 30V/3A adjustable power supply kit, making an enclosure and testing</summary>
3280.    <g:image_link>https://leap.tardate.com/Equipment/AdjustablePowerSupplyKit/assets/AdjustablePowerSupplyKit_build.jpg</g:image_link>
3281.    <category term="Power"/>
3282.  </entry>
3283.  <entry>
3284.    <id>https://leap.tardate.com/Kinetics/StepperMotors/ULN2003Module/</id>
3285.    <link href="https://leap.tardate.com/Kinetics/StepperMotors/ULN2003Module/"/>
3286.    <updated>2018-11-04T15:38:01Z</updated>
3287.    <title>#432 StepperMotors/ULN2003Module</title>
3288.    <summary>investigating the common ULN2003A modules provided for unipolar stepper motor control - this one is identified as X113647</summary>
3289.    <g:image_link>https://leap.tardate.com/Kinetics/StepperMotors/ULN2003Module/assets/ULN2003Module_build.jpg</g:image_link>
3290.    <category term="Stepper"/>
3291.    <category term="ULN2003"/>
3292.  </entry>
3293.  <entry>
3294.    <id>https://leap.tardate.com/Kinetics/StepperMotors/28BYJ48/</id>
3295.    <link href="https://leap.tardate.com/Kinetics/StepperMotors/28BYJ48/"/>
3296.    <updated>2018-11-04T15:38:01Z</updated>
3297.    <title>#431 StepperMotors/28BYJ48</title>
3298.    <summary>all about the 28BYJ-48 unipolar stepper motor and driving it with an Arduino</summary>
3299.    <g:image_link>https://leap.tardate.com/Kinetics/StepperMotors/28BYJ48/assets/28BYJ48_build.jpg</g:image_link>
3300.    <category term="Stepper"/>
3301.    <category term="Arduino"/>
3302.  </entry>
3303.  <entry>
3304.    <id>https://leap.tardate.com/Kinetics/StepperMotors/BipolarWormDrive/SimpleHBridge/</id>
3305.    <link href="https://leap.tardate.com/Kinetics/StepperMotors/BipolarWormDrive/SimpleHBridge/"/>
3306.    <updated>2018-11-04T15:38:01Z</updated>
3307.    <title>#430 BipolarWormDrive/SimpleHBridge</title>
3308.    <summary>testing some linear/worm-drive stepper motors salvaged from a DVD drive unit, using a bespoke H-bridge circuit and Arduino .. or pushbuttons!</summary>
3309.    <g:image_link>https://leap.tardate.com/Kinetics/StepperMotors/BipolarWormDrive/SimpleHBridge/assets/SimpleHBridge_build.jpg</g:image_link>
3310.    <category term="Stepper"/>
3311.    <category term="Arduino"/>
3312.  </entry>
3313.  <entry>
3314.    <id>https://leap.tardate.com/BoldportClub/3x7/PomodoroTimer/</id>
3315.    <link href="https://leap.tardate.com/BoldportClub/3x7/PomodoroTimer/"/>
3316.    <updated>2018-10-27T03:24:49Z</updated>
3317.    <title>#429 3x7/PomodoroTimer</title>
3318.    <summary>a Pomodoro timer wire sculpture using the Boldport 3x7 display and an ATmega328</summary>
3319.    <g:image_link>https://leap.tardate.com/BoldportClub/3x7/PomodoroTimer/assets/PomodoroTimer_build.jpg</g:image_link>
3320.    <category term="Boldport"/>
3321.    <category term="7-Segment"/>
3322.    <category term="ATmel"/>
3323.  </entry>
3324.  <entry>
3325.    <id>https://leap.tardate.com/BoldportClub/3x7/LRThreeDigitDemo/</id>
3326.    <link href="https://leap.tardate.com/BoldportClub/3x7/LRThreeDigitDemo/"/>
3327.    <updated>2018-10-27T03:24:49Z</updated>
3328.    <title>#428 3x7 LRThreeDigitDemo</title>
3329.    <summary>driving the Boldport 3x7 display from a Cuttle (Arduino) and the LRThreeDigits library</summary>
3330.    <g:image_link>https://leap.tardate.com/BoldportClub/3x7/LRThreeDigitDemo/assets/LRThreeDigitDemo_build.jpg</g:image_link>
3331.    <category term="Boldport"/>
3332.    <category term="7-Segment"/>
3333.    <category term="Arduino"/>
3334.  </entry>
3335.  <entry>
3336.    <id>https://leap.tardate.com/playground/ATtiny/SoftwarePWM/</id>
3337.    <link href="https://leap.tardate.com/playground/ATtiny/SoftwarePWM/"/>
3338.    <updated>2018-10-21T07:22:34Z</updated>
3339.    <title>#427 ATtiny Software PWM</title>
3340.    <summary>generating arbitrary PWM signals with an ATtiny85 and bit-banging techniques</summary>
3341.    <g:image_link>https://leap.tardate.com/playground/ATtiny/SoftwarePWM/assets/SoftwarePWM_build.jpg</g:image_link>
3342.    <category term="AVR"/>
3343.    <category term="PWM"/>
3344.  </entry>
3345.  <entry>
3346.    <id>https://leap.tardate.com/BoldportClub/3x7/RippleTester/</id>
3347.    <link href="https://leap.tardate.com/BoldportClub/3x7/RippleTester/"/>
3348.    <updated>2018-10-19T10:19:59Z</updated>
3349.    <title>#426 3x7 RippleTester </title>
3350.    <summary>using some 4000 series counters (CD4017, CD4060) to exercise the digits and segments of the Boldport 3x7</summary>
3351.    <g:image_link>https://leap.tardate.com/BoldportClub/3x7/RippleTester/assets/RippleTester_build.jpg</g:image_link>
3352.    <category term="Boldport"/>
3353.    <category term="7-Segment"/>
3354.    <category term="CMOS/TTL"/>
3355.  </entry>
3356.  <entry>
3357.    <id>https://leap.tardate.com/BoldportClub/3x7/</id>
3358.    <link href="https://leap.tardate.com/BoldportClub/3x7/"/>
3359.    <updated>2018-10-19T10:19:59Z</updated>
3360.    <title>#425 BoldportClub/3x7</title>
3361.    <summary>building the Boldport 3x7, Project #29, with custom flip-top layout so you can see inside this discrete 3-digit, 7-segment display</summary>
3362.    <g:image_link>https://leap.tardate.com/BoldportClub/3x7/assets/3x7_build.jpg</g:image_link>
3363.    <category term="Boldport"/>
3364.    <category term="7-Segment"/>
3365.  </entry>
3366.  <entry>
3367.    <id>https://leap.tardate.com/playground/VL53L0X/TheToneRanger/</id>
3368.    <link href="https://leap.tardate.com/playground/VL53L0X/TheToneRanger/"/>
3369.    <updated>2018-10-14T13:32:30Z</updated>
3370.    <title>#424 TheToneRanger</title>
3371.    <summary>a simple modification of the basic VL53L0X example to add audio indication of range</summary>
3372.    <g:image_link>https://leap.tardate.com/playground/VL53L0X/TheToneRanger/assets/TheToneRanger_build.jpg</g:image_link>
3373.    <category term="Arduino"/>
3374.    <category term="Sensors"/>
3375.    <category term="Audio"/>
3376.  </entry>
3377.  <entry>
3378.    <id>https://leap.tardate.com/playground/MakerUno/</id>
3379.    <link href="https://leap.tardate.com/playground/MakerUno/"/>
3380.    <updated>2018-10-14T13:32:30Z</updated>
3381.    <title>#423 MakerUno</title>
3382.    <summary>checking out the Maker UNO, a feature-packed Arduino-compatible board from Cytron in Penang, Malaysia</summary>
3383.    <g:image_link>https://leap.tardate.com/playground/MakerUno/assets/MakerUno_build.jpg</g:image_link>
3384.    <category term="Arduino"/>
3385.  </entry>
3386.  <entry>
3387.    <id>https://leap.tardate.com/playground/VL53L0X/LaserTapeMeasure/</id>
3388.    <link href="https://leap.tardate.com/playground/VL53L0X/LaserTapeMeasure/"/>
3389.    <updated>2018-10-11T11:56:03Z</updated>
3390.    <title>#422 LaserTapeMeasure</title>
3391.    <summary>using a VL53L0X ranging sensor to make a short-range laser tape measure with an Arduino with Nokia 5110 display</summary>
3392.    <g:image_link>https://leap.tardate.com/playground/VL53L0X/LaserTapeMeasure/assets/LaserTapeMeasure_build.jpg</g:image_link>
3393.    <category term="Sensors"/>
3394.    <category term="Arduino"/>
3395.    <category term="LCD"/>
3396.  </entry>
3397.  <entry>
3398.    <id>https://leap.tardate.com/Radio/SDR/LimeSDR/FirstLook/</id>
3399.    <link href="https://leap.tardate.com/Radio/SDR/LimeSDR/FirstLook/"/>
3400.    <updated>2019-09-29T13:47:06Z</updated>
3401.    <title>#421 LimeSDR First Look</title>
3402.    <summary>unboxing and first test of the LimeSDR-USB software-defined radio with MacOSX host</summary>
3403.    <g:image_link>https://leap.tardate.com/Radio/SDR/LimeSDR/FirstLook/assets/FirstLook_build.jpg</g:image_link>
3404.    <category term="SDR"/>
3405.  </entry>
3406.  <entry>
3407.    <id>https://leap.tardate.com/BoldportClub/lite2sound-bc/CuttleTalk/</id>
3408.    <link href="https://leap.tardate.com/BoldportClub/lite2sound-bc/CuttleTalk/"/>
3409.    <updated>2018-10-07T15:29:04Z</updated>
3410.    <title>#420 CuttleTalk</title>
3411.    <summary>playing audio from a Boldport Cuttle (Arduino) over LiFi with lite2sound</summary>
3412.    <g:image_link>https://leap.tardate.com/BoldportClub/lite2sound-bc/CuttleTalk/assets/CuttleTalk_build.jpg</g:image_link>
3413.    <category term="Boldport"/>
3414.    <category term="Audio"/>
3415.    <category term="LiFi"/>
3416.  </entry>
3417.  <entry>
3418.    <id>https://leap.tardate.com/BoldportClub/lite2sound-bc/</id>
3419.    <link href="https://leap.tardate.com/BoldportClub/lite2sound-bc/"/>
3420.    <updated>2018-10-07T15:29:04Z</updated>
3421.    <title>#419 BoldportClub/lite2sound-bc</title>
3422.    <summary>building Lite2Sound Boldport Club Project #26</summary>
3423.    <g:image_link>https://leap.tardate.com/BoldportClub/lite2sound-bc/assets/lite2sound-bc_build.jpg</g:image_link>
3424.    <category term="Boldport"/>
3425.    <category term="PCB Design"/>
3426.    <category term="Audio"/>
3427.  </entry>
3428.  <entry>
3429.    <id>https://leap.tardate.com/Electronics101/Oscillators/CommonEmitterHartley/</id>
3430.    <link href="https://leap.tardate.com/Electronics101/Oscillators/CommonEmitterHartley/"/>
3431.    <updated>2018-10-06T12:58:56Z</updated>
3432.    <title>#418 CommonEmitterHartley</title>
3433.    <summary>build and test a BJT common-emitter Hartley oscillator</summary>
3434.    <g:image_link>https://leap.tardate.com/Electronics101/Oscillators/CommonEmitterHartley/assets/CommonEmitterHartley_build.jpg</g:image_link>
3435.    <category term="BJT"/>
3436.    <category term="Oscillators"/>
3437.  </entry>
3438.  <entry>
3439.    <id>https://leap.tardate.com/playground/Audio/SimpleSamplePlayer/</id>
3440.    <link href="https://leap.tardate.com/playground/Audio/SimpleSamplePlayer/"/>
3441.    <updated>2018-10-04T15:23:48Z</updated>
3442.    <title>#417 SimpleSamplePlayer</title>
3443.    <summary>playing short audio samples on an Arduino using some PWM tricks from the PCM library</summary>
3444.    <g:image_link>https://leap.tardate.com/playground/Audio/SimpleSamplePlayer/assets/SimpleSamplePlayer_build.jpg</g:image_link>
3445.    <category term="Audio"/>
3446.    <category term="Arduino"/>
3447.    <category term="PWM"/>
3448.  </entry>
3449.  <entry>
3450.    <id>https://leap.tardate.com/Kinetics/LineFollowerKit/</id>
3451.    <link href="https://leap.tardate.com/Kinetics/LineFollowerKit/"/>
3452.    <updated>2018-10-02T15:49:18Z</updated>
3453.    <title>#416 Line Follower Kit</title>
3454.    <summary>building the D2-5 Intelligent Line Tracking Car Kit - a nice demonstration of a simple feedback control system with an LM393 comparator</summary>
3455.    <g:image_link>https://leap.tardate.com/Kinetics/LineFollowerKit/assets/LineFollowerKit_build.jpg</g:image_link>
3456.    <category term="Sensors"/>
3457.    <category term="Kinetics"/>
3458.    <category term="OpAmp"/>
3459.  </entry>
3460.  <entry>
3461.    <id>https://leap.tardate.com/Electronics101/555Timer/NixiePowerSupply/</id>
3462.    <link href="https://leap.tardate.com/Electronics101/555Timer/NixiePowerSupply/"/>
3463.    <updated>2018-09-29T11:06:03Z</updated>
3464.    <title>#415 Nixie Power Supply - 555 Timer Version</title>
3465.    <summary>using a 555 boost converter to test some Nixie IN3 and IN14 tubes</summary>
3466.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/NixiePowerSupply/assets/NixiePowerSupply_build.jpg</g:image_link>
3467.    <category term="Power"/>
3468.    <category term="Nixie"/>
3469.    <category term="555 Timer"/>
3470.  </entry>
3471.  <entry>
3472.    <id>https://leap.tardate.com/Electronics101/DecadeProgrammableResistor/</id>
3473.    <link href="https://leap.tardate.com/Electronics101/DecadeProgrammableResistor/"/>
3474.    <updated>2018-09-17T16:54:22Z</updated>
3475.    <title>#414 Decade Programmable Resistor</title>
3476.    <summary>building an old-fashioned 7-digit decade programmable resistor with push-button control</summary>
3477.    <g:image_link>https://leap.tardate.com/Electronics101/DecadeProgrammableResistor/assets/DecadeProgrammableResistor_build.jpg</g:image_link>
3478.    <category term="Test Equipment"/>
3479.  </entry>
3480.  <entry>
3481.    <id>https://leap.tardate.com/Electronics101/RotaryEncoders/IncrementalTester/</id>
3482.    <link href="https://leap.tardate.com/Electronics101/RotaryEncoders/IncrementalTester/"/>
3483.    <updated>2018-09-17T16:54:22Z</updated>
3484.    <title>#413 Rotary Encoder Tester</title>
3485.    <summary>demonstrating a rotary encoder forward/reverse LED indicator using simple digital logic</summary>
3486.    <g:image_link>https://leap.tardate.com/Electronics101/RotaryEncoders/IncrementalTester/assets/IncrementalTester_build.jpg</g:image_link>
3487.    <category term="Sensor"/>
3488.    <category term="CMOS/TTL"/>
3489.  </entry>
3490.  <entry>
3491.    <id>https://leap.tardate.com/Electronics101/BJT/Comparator/</id>
3492.    <link href="https://leap.tardate.com/Electronics101/BJT/Comparator/"/>
3493.    <updated>2018-08-30T03:47:18Z</updated>
3494.    <title>#412 BJT Comparator</title>
3495.    <summary>investigating and testing a comparator design with discrete components</summary>
3496.    <g:image_link>https://leap.tardate.com/Electronics101/BJT/Comparator/assets/Comparator_build.jpg</g:image_link>
3497.    <category term="BJT"/>
3498.    <category term="Comparator"/>
3499.  </entry>
3500.  <entry>
3501.    <id>https://leap.tardate.com/BoldportClub/cordwood-three/</id>
3502.    <link href="https://leap.tardate.com/BoldportClub/cordwood-three/"/>
3503.    <updated>2018-08-23T15:04:09Z</updated>
3504.    <title>#411 BoldportClub/cordwood-three</title>
3505.    <summary>custom build of the Boldport Club Cordwood Puzzle III, Project #25, May 2018, with an archway layout and a spring-loaded LED trigger machanism</summary>
3506.    <g:image_link>https://leap.tardate.com/BoldportClub/cordwood-three/assets/cordwood-three_build.jpg</g:image_link>
3507.    <category term="Boldport"/>
3508.    <category term="LED"/>
3509.  </entry>
3510.  <entry>
3511.    <id>https://leap.tardate.com/Kinetics/HomopolarJouleThiefBlinky/</id>
3512.    <link href="https://leap.tardate.com/Kinetics/HomopolarJouleThiefBlinky/"/>
3513.    <updated>2018-08-12T16:16:08Z</updated>
3514.    <title>#410 HomopolarJouleThiefBlinky</title>
3515.    <summary>a totally Rube-Goldberg contraption for blinking an LED with a AAA battery, homopolar motor and joule thief mechanisms</summary>
3516.    <g:image_link>https://leap.tardate.com/Kinetics/HomopolarJouleThiefBlinky/assets/HomopolarJouleThiefBlinky_build.jpg</g:image_link>
3517.    <category term="Kinetics"/>
3518.    <category term="LED"/>
3519.    <category term="Oscillators"/>
3520.  </entry>
3521.  <entry>
3522.    <id>https://leap.tardate.com/BoldportClub/conehead/</id>
3523.    <link href="https://leap.tardate.com/BoldportClub/conehead/"/>
3524.    <updated>2018-08-12T16:16:08Z</updated>
3525.    <title>#409 Conehead</title>
3526.    <summary>The Conehead is the fourth in the Boldport Club series of beautiful electronic critters, Project #24 April 2018. This one chirps in response to light.</summary>
3527.    <g:image_link>https://leap.tardate.com/BoldportClub/conehead/assets/conehead_build.jpg</g:image_link>
3528.    <category term="Boldport"/>
3529.    <category term="Oscillators"/>
3530.    <category term="CMOS/TTL"/>
3531.    <category term="Audio"/>
3532.  </entry>
3533.  <entry>
3534.    <id>https://leap.tardate.com/Electronics101/Power/BBBreakout/</id>
3535.    <link href="https://leap.tardate.com/Electronics101/Power/BBBreakout/"/>
3536.    <updated>2018-08-05T08:52:10Z</updated>
3537.    <title>#408 BBBreakout</title>
3538.    <summary>a little breadboard power adapter and breakout with 5.5x2.1mm barrel jack, terminal block and XH2.54 connectors</summary>
3539.    <g:image_link>https://leap.tardate.com/Electronics101/Power/BBBreakout/assets/BBBreakout_build.jpg</g:image_link>
3540.    <category term="Power"/>
3541.  </entry>
3542.  <entry>
3543.    <id>https://leap.tardate.com/Equipment/DPS3005BenchPowerSupply/</id>
3544.    <link href="https://leap.tardate.com/Equipment/DPS3005BenchPowerSupply/"/>
3545.    <updated>2018-08-04T11:34:22Z</updated>
3546.    <title>#407 DPS3005BenchPowerSupply</title>
3547.    <summary>building an AC-powered 32V/5A variable bench power supply based on the DPS3005 DC power supply module and rectified step-down transformer</summary>
3548.    <g:image_link>https://leap.tardate.com/Equipment/DPS3005BenchPowerSupply/assets/DPS3005BenchPowerSupply_build.jpg</g:image_link>
3549.    <category term="Power"/>
3550.    <category term="Tools"/>
3551.  </entry>
3552.  <entry>
3553.    <id>https://leap.tardate.com/Electronics101/SerialInterface/UsbUartCH340G/</id>
3554.    <link href="https://leap.tardate.com/Electronics101/SerialInterface/UsbUartCH340G/"/>
3555.    <updated>2019-11-20T11:41:26Z</updated>
3556.    <title>#406 Custom CH340G USB to UART interface</title>
3557.    <summary>build a USB to TTL serial interface on a breadboard using the CH340G interface chip, and use it to program Arduino sketches on an ATmega328P</summary>
3558.    <g:image_link>https://leap.tardate.com/Electronics101/SerialInterface/UsbUartCH340G/assets/UsbUartCH340G_build.jpg</g:image_link>
3559.    <category term="USB"/>
3560.    <category term="Serial"/>
3561.    <category term="CH340"/>
3562.  </entry>
3563.  <entry>
3564.    <id>https://leap.tardate.com/playground/ATmegaSerialProgrammer/</id>
3565.    <link href="https://leap.tardate.com/playground/ATmegaSerialProgrammer/"/>
3566.    <updated>2018-07-29T10:09:32Z</updated>
3567.    <title>#405 ATmegaSerialProgrammer</title>
3568.    <summary>all about bootloaders and how to program an ATMEGA328P chip over a serial connection with a CH340G USB-Serial adapter instead of ICSP</summary>
3569.    <g:image_link>https://leap.tardate.com/playground/ATmegaSerialProgrammer/assets/ATmegaSerialProgrammer_build.jpg</g:image_link>
3570.    <category term="Arduino"/>
3571.    <category term="ATmel"/>
3572.    <category term="ICSP"/>
3573.    <category term="UART"/>
3574.  </entry>
3575.  <entry>
3576.    <id>https://leap.tardate.com/Kraft/arzamatron/</id>
3577.    <link href="https://leap.tardate.com/Kraft/arzamatron/"/>
3578.    <updated>2018-07-22T14:45:31Z</updated>
3579.    <title>#404 Arza-matron</title>
3580.    <summary>whipping together a simple sound-activated party decoration with the other half of the Fretboard guitar some LED strips</summary>
3581.    <g:image_link>https://leap.tardate.com/Kraft/arzamatron/assets/arzamatron_build.jpg</g:image_link>
3582.    <category term="Arduino"/>
3583.    <category term="LED"/>
3584.    <category term="Sensors"/>
3585.    <category term="Craft"/>
3586.  </entry>
3587.  <entry>
3588.    <id>https://leap.tardate.com/Equipment/GY560/</id>
3589.    <link href="https://leap.tardate.com/Equipment/GY560/"/>
3590.    <updated>2018-07-08T04:39:44Z</updated>
3591.    <title>#403 GY560</title>
3592.    <summary>checking out the GY560 Frequency Counter</summary>
3593.    <g:image_link>https://leap.tardate.com/Equipment/GY560/assets/GY560_build.jpg</g:image_link>
3594.    <category term="Radio"/>
3595.    <category term="Tools"/>
3596.    <category term="Test Equipment"/>
3597.  </entry>
3598.  <entry>
3599.    <id>https://leap.tardate.com/BoldportClub/pips/</id>
3600.    <link href="https://leap.tardate.com/BoldportClub/pips/"/>
3601.    <updated>2018-07-07T04:47:34Z</updated>
3602.    <title>#402 BoldportClub/pips</title>
3603.    <summary>rolling the BoldportClub Pips (Project #23) - a classic Elektor die circuit using the CD4060 ripple counter</summary>
3604.    <g:image_link>https://leap.tardate.com/BoldportClub/pips/assets/pips_build.jpg</g:image_link>
3605.    <category term="Boldport"/>
3606.    <category term="CD4060"/>
3607.  </entry>
3608.  <entry>
3609.    <id>https://leap.tardate.com/Radio/pixie/</id>
3610.    <link href="https://leap.tardate.com/Radio/pixie/"/>
3611.    <updated>2018-07-07T04:47:34Z</updated>
3612.    <title>#401 Pixie</title>
3613.    <summary>research the history and variants of the Pixie QRP transceiver, and build a basic Pixie 4.3 kit on 40m</summary>
3614.    <g:image_link>https://leap.tardate.com/Radio/pixie/assets/pixie_build.jpg</g:image_link>
3615.    <category term="Radio"/>
3616.  </entry>
3617.  <entry>
3618.    <id>https://leap.tardate.com/Equipment/USBProtector/</id>
3619.    <link href="https://leap.tardate.com/Equipment/USBProtector/"/>
3620.    <updated>2018-07-02T00:07:52Z</updated>
3621.    <title>#400 USBProtector</title>
3622.    <summary>building the Silicon Chip USB Protector which demonstrates various methods of reverse-polarity, over-voltage and over-current protection</summary>
3623.    <g:image_link>https://leap.tardate.com/Equipment/USBProtector/assets/USBProtector_build.jpg</g:image_link>
3624.    <category term="Power"/>
3625.    <category term="USB"/>
3626.    <category term="Tools"/>
3627.    <category term="Test Equipment"/>
3628.  </entry>
3629.  <entry>
3630.    <id>https://leap.tardate.com/8051/AT89C2051/LedChaser/</id>
3631.    <link href="https://leap.tardate.com/8051/AT89C2051/LedChaser/"/>
3632.    <updated>2018-07-02T00:07:52Z</updated>
3633.    <title>#399 AT89C2051 LED Chaser</title>
3634.    <summary>run an LED chaser with an AT89C2051 using interrupts for timing; C source compiled with SDCC on MacOSX</summary>
3635.    <g:image_link>https://leap.tardate.com/8051/AT89C2051/LedChaser/assets/LedChaser_build.jpg</g:image_link>
3636.    <category term="8051"/>
3637.    <category term="LED"/>
3638.  </entry>
3639.  <entry>
3640.    <id>https://leap.tardate.com/playground/LCD/I2CAdapter/</id>
3641.    <link href="https://leap.tardate.com/playground/LCD/I2CAdapter/"/>
3642.    <updated>2018-06-10T15:09:40Z</updated>
3643.    <title>#398 LCD I2C Adapter</title>
3644.    <summary>using an I²C adapter to reduce the Arduino pins needed to drive an LCD</summary>
3645.    <g:image_link>https://leap.tardate.com/playground/LCD/I2CAdapter/assets/I2CAdapter_build.jpg</g:image_link>
3646.    <category term="LCD"/>
3647.    <category term="I2C"/>
3648.  </entry>
3649.  <entry>
3650.    <id>https://leap.tardate.com/playground/I2CScanner/</id>
3651.    <link href="https://leap.tardate.com/playground/I2CScanner/"/>
3652.    <updated>2018-06-10T15:09:40Z</updated>
3653.    <title>#397 I2CScanner</title>
3654.    <summary>scanning for I²C devices with an Arduino</summary>
3655.    <g:image_link>https://leap.tardate.com/playground/I2CScanner/assets/I2CScanner_build.jpg</g:image_link>
3656.    <category term="I2C"/>
3657.    <category term="Arduino"/>
3658.  </entry>
3659.  <entry>
3660.    <id>https://leap.tardate.com/playground/CapacitiveTouchOrgan/</id>
3661.    <link href="https://leap.tardate.com/playground/CapacitiveTouchOrgan/"/>
3662.    <updated>2018-06-10T10:23:18Z</updated>
3663.    <title>#396 CapacitiveTouchOrgan</title>
3664.    <summary>a simple chromatic scale organ, controlled with a Freescale/NXP MPR121 Proximity Capacitive Touch Sensor and an Arduino</summary>
3665.    <g:image_link>https://leap.tardate.com/playground/CapacitiveTouchOrgan/assets/CapacitiveTouchOrgan_build.jpg</g:image_link>
3666.    <category term="Audio"/>
3667.    <category term="Sensors"/>
3668.    <category term="MPR121"/>
3669.  </entry>
3670.  <entry>
3671.    <id>https://leap.tardate.com/8051/AT89C2051/Blinky/</id>
3672.    <link href="https://leap.tardate.com/8051/AT89C2051/Blinky/"/>
3673.    <updated>2018-06-06T15:28:00Z</updated>
3674.    <title>#395 AT89C2051 Blinky</title>
3675.    <summary>Simplest LED blinky program in C for the AT89C2051(8051/MCS51) microprocessor, built with the SDCC open-source toolchain on MacOSX</summary>
3676.    <g:image_link>https://leap.tardate.com/8051/AT89C2051/Blinky/assets/Blinky_build.jpg</g:image_link>
3677.    <category term="8051"/>
3678.    <category term="LED"/>
3679.  </entry>
3680.  <entry>
3681.    <id>https://leap.tardate.com/8051/AT89C2051/Programmer/</id>
3682.    <link href="https://leap.tardate.com/8051/AT89C2051/Programmer/"/>
3683.    <updated>2018-06-06T15:28:00Z</updated>
3684.    <title>#394 AT89C2051 Programmer</title>
3685.    <summary>building a programmer for the Intel MCS-51/8051 compatible AT89C2051, with host software running on MacOSX</summary>
3686.    <g:image_link>https://leap.tardate.com/8051/AT89C2051/Programmer/assets/Programmer_build.jpg</g:image_link>
3687.    <category term="8051"/>
3688.  </entry>
3689.  <entry>
3690.    <id>https://leap.tardate.com/playground/DicksonChargePump/</id>
3691.    <link href="https://leap.tardate.com/playground/DicksonChargePump/"/>
3692.    <updated>2018-06-06T15:28:00Z</updated>
3693.    <title>#393 Dickson Charge Pump</title>
3694.    <summary>Zener-regulated 12V Dickson Charge Pump driven with Arduino PWM</summary>
3695.    <g:image_link>https://leap.tardate.com/playground/DicksonChargePump/assets/DicksonChargePump_build.jpg</g:image_link>
3696.    <category term="Arduino"/>
3697.    <category term="Power"/>
3698.  </entry>
3699.  <entry>
3700.    <id>https://leap.tardate.com/BoldportClub/whiteboard/</id>
3701.    <link href="https://leap.tardate.com/BoldportClub/whiteboard/"/>
3702.    <updated>2018-05-27T13:43:11Z</updated>
3703.    <title>#392 BoldportClub/whiteboard</title>
3704.    <summary>building the Whiteboard (Boldport Club project #22), a breadboard enhancer featuring variable and coin-cell power supplies and prototyping areas. Demonstrated with a 4-stage CD4060 ripple counter</summary>
3705.    <g:image_link>https://leap.tardate.com/BoldportClub/whiteboard/assets/whiteboard_build.jpg</g:image_link>
3706.    <category term="Boldport"/>
3707.    <category term="LM317"/>
3708.    <category term="CD4060"/>
3709.  </entry>
3710.  <entry>
3711.    <id>https://leap.tardate.com/Equipment/MilliVoltmeterDIY/CustomBoardAndEnclosure/</id>
3712.    <link href="https://leap.tardate.com/Equipment/MilliVoltmeterDIY/CustomBoardAndEnclosure/"/>
3713.    <updated>2018-05-25T15:54:24Z</updated>
3714.    <title>#391 MilliVoltmeterDIY PCB and Enclosure</title>
3715.    <summary>custom PCB and enclosure for the ATmega328-based millivolt meter based on a design by Scullcom Hobby Electronics. Uses an LTC2400 ADC and LT1019 voltage reference</summary>
3716.    <g:image_link>https://leap.tardate.com/Equipment/MilliVoltmeterDIY/CustomBoardAndEnclosure/assets/CustomBoardAndEnclosure_build.jpg</g:image_link>
3717.    <category term="ATmega"/>
3718.    <category term="ADC"/>
3719.    <category term="Tools"/>
3720.    <category term="Test Equipment"/>
3721.  </entry>
3722.  <entry>
3723.    <id>https://leap.tardate.com/PIC/GettingBlinky/UsingC/</id>
3724.    <link href="https://leap.tardate.com/PIC/GettingBlinky/UsingC/"/>
3725.    <updated>2018-05-25T15:54:24Z</updated>
3726.    <title>#390 PIC/GettingBlinky/UsingC</title>
3727.    <summary>getting up and running building XC8 C projects on MacOSX and a PIC12F675. Let's get Blinky again!</summary>
3728.    <g:image_link>https://leap.tardate.com/PIC/GettingBlinky/UsingC/assets/UsingC_build.jpg</g:image_link>
3729.    <category term="PIC"/>
3730.    <category term="LED"/>
3731.  </entry>
3732.  <entry>
3733.    <id>https://leap.tardate.com/Electronics101/BJT/TwoStageCommonEmitterAmplifier/</id>
3734.    <link href="https://leap.tardate.com/Electronics101/BJT/TwoStageCommonEmitterAmplifier/"/>
3735.    <updated>2018-05-14T13:20:09Z</updated>
3736.    <title>#389 Two-stage Common Emitter Amplifier</title>
3737.    <summary>designing a two-stage common-emitter BJT amplifier</summary>
3738.    <g:image_link>https://leap.tardate.com/Electronics101/BJT/TwoStageCommonEmitterAmplifier/assets/TwoStageCommonEmitterAmplifier_build.jpg</g:image_link>
3739.    <category term="BJT"/>
3740.    <category term="Amplifier"/>
3741.  </entry>
3742.  <entry>
3743.    <id>https://leap.tardate.com/Radio/SingaporeBands/</id>
3744.    <link href="https://leap.tardate.com/Radio/SingaporeBands/"/>
3745.    <updated>2020-03-14T16:56:38Z</updated>
3746.    <title>#388 SingaporeBands</title>
3747.    <summary>notes on official band plans for Singapore and my and personal observations on where the activity is found</summary>
3748.    <g:image_link>https://leap.tardate.com/Radio/SingaporeBands/assets/SingaporeBands_build.jpg</g:image_link>
3749.    <category term="Radio"/>
3750.  </entry>
3751.  <entry>
3752.    <id>https://leap.tardate.com/playground/GpsBasics/</id>
3753.    <link href="https://leap.tardate.com/playground/GpsBasics/"/>
3754.    <updated>2018-05-06T08:02:57Z</updated>
3755.    <title>#387 GpsBasics</title>
3756.    <summary>using a NEMA-compatible GPS module for time and location with an Arduino</summary>
3757.    <g:image_link>https://leap.tardate.com/playground/GpsBasics/assets/GpsBasics_build.jpg</g:image_link>
3758.    <category term="GPS"/>
3759.    <category term="Arduino"/>
3760.  </entry>
3761.  <entry>
3762.    <id>https://leap.tardate.com/ARM/STM32F103C8T6/BluePill/</id>
3763.    <link href="https://leap.tardate.com/ARM/STM32F103C8T6/BluePill/"/>
3764.    <updated>2020-05-31T20:36:41Z</updated>
3765.    <title>#386 BluePill</title>
3766.    <summary>programming an ARM Cortex-M3 STM32F103C8T6 Blue Pill board with the Arduino IDE</summary>
3767.    <g:image_link>https://leap.tardate.com/ARM/STM32F103C8T6/BluePill/assets/BluePill_build.jpg</g:image_link>
3768.    <category term="STM32"/>
3769.  </entry>
3770.  <entry>
3771.    <id>https://leap.tardate.com/BoldportClub/widlar/</id>
3772.    <link href="https://leap.tardate.com/BoldportClub/widlar/"/>
3773.    <updated>2018-05-02T16:55:49Z</updated>
3774.    <title>#385 BoldportClub/widlar</title>
3775.    <summary>hacking the BoldportClub Widlar (Project #21) to get the classic μA723 to do something other than voltage regulation (LED blinky)</summary>
3776.    <g:image_link>https://leap.tardate.com/BoldportClub/widlar/assets/widlar_build.jpg</g:image_link>
3777.    <category term="723"/>
3778.    <category term="Power"/>
3779.    <category term="Oscillator"/>
3780.  </entry>
3781.  <entry>
3782.    <id>https://leap.tardate.com/Electronics101/LM723/HighVoltageRegulator/</id>
3783.    <link href="https://leap.tardate.com/Electronics101/LM723/HighVoltageRegulator/"/>
3784.    <updated>2018-04-29T15:36:28Z</updated>
3785.    <title>#384 LM723/HighVoltageRegulator</title>
3786.    <summary>playing with the basic high voltage output circuit for the LM723 voltage regulator</summary>
3787.    <g:image_link>https://leap.tardate.com/Electronics101/LM723/HighVoltageRegulator/assets/HighVoltageRegulator_build.jpg</g:image_link>
3788.    <category term="Power"/>
3789.    <category term="Regulator"/>
3790.    <category term="LM723"/>
3791.  </entry>
3792.  <entry>
3793.    <id>https://leap.tardate.com/Electronics101/LM723/LowVoltageRegulator/</id>
3794.    <link href="https://leap.tardate.com/Electronics101/LM723/LowVoltageRegulator/"/>
3795.    <updated>2018-04-29T15:36:28Z</updated>
3796.    <title>#383 LM723/LowVoltageRegulator</title>
3797.    <summary>playing with the basic low voltage output circuit for the LM723 voltage regulator</summary>
3798.    <g:image_link>https://leap.tardate.com/Electronics101/LM723/LowVoltageRegulator/assets/LowVoltageRegulator_build.jpg</g:image_link>
3799.    <category term="Power"/>
3800.    <category term="Regulator"/>
3801.    <category term="LM723"/>
3802.  </entry>
3803.  <entry>
3804.    <id>https://leap.tardate.com/Electronics101/CD4046/VCO/</id>
3805.    <link href="https://leap.tardate.com/Electronics101/CD4046/VCO/"/>
3806.    <updated>2018-04-29T15:36:28Z</updated>
3807.    <title>#382 CD4046 VCO</title>
3808.    <summary>audio range voltage-controlled oscillator using the CD4046 PLL/VCO IC</summary>
3809.    <g:image_link>https://leap.tardate.com/Electronics101/CD4046/VCO/assets/VCO_build.jpg</g:image_link>
3810.    <category term="RC"/>
3811.    <category term="CD4046"/>
3812.    <category term="Oscillators"/>
3813.  </entry>
3814.  <entry>
3815.    <id>https://leap.tardate.com/playground/WaterQualityMonitor/</id>
3816.    <link href="https://leap.tardate.com/playground/WaterQualityMonitor/"/>
3817.    <updated>2018-04-29T15:36:28Z</updated>
3818.    <title>#381 WaterQualityMonitor</title>
3819.    <summary>a project by oweibo to monitor water quality</summary>
3820.    <g:image_link>https://leap.tardate.com/playground/WaterQualityMonitor/assets/WaterQualityMonitor_build.jpg</g:image_link>
3821.    <category term="Arduino"/>
3822.    <category term="Sensors"/>
3823.  </entry>
3824.  <entry>
3825.    <id>https://leap.tardate.com/playground/tin_counter/</id>
3826.    <link href="https://leap.tardate.com/playground/tin_counter/"/>
3827.    <updated>2018-04-29T15:36:28Z</updated>
3828.    <title>#380 Tin Counter</title>
3829.    <summary>a project by novaprimexex to count tins as they roll by and detect tins without paper labels</summary>
3830.    <g:image_link>https://leap.tardate.com/playground/tin_counter/assets/tin_counter_build.jpg</g:image_link>
3831.    <category term="Arduino"/>
3832.    <category term="Sensors"/>
3833.    <category term="HC-SR04"/>
3834.  </entry>
3835.  <entry>
3836.    <id>https://leap.tardate.com/playground/AS3935/</id>
3837.    <link href="https://leap.tardate.com/playground/AS3935/"/>
3838.    <updated>2018-04-29T15:36:28Z</updated>
3839.    <title>#379 AS3935</title>
3840.    <summary>using the AMS AS3935 Franklin Lightning Sensor with an Arduino with the Wire library</summary>
3841.    <g:image_link>https://leap.tardate.com/playground/AS3935/assets/AS3935_build.jpg</g:image_link>
3842.    <category term="Arduino"/>
3843.    <category term="AS3935"/>
3844.    <category term="Sensors"/>
3845.  </entry>
3846.  <entry>
3847.    <id>https://leap.tardate.com/Electronics101/BJT/PhaseSplitter/</id>
3848.    <link href="https://leap.tardate.com/Electronics101/BJT/PhaseSplitter/"/>
3849.    <updated>2018-02-13T01:35:19Z</updated>
3850.    <title>#378 BJT Phase Splitter</title>
3851.    <summary>simple unity-gain phase splitter in a little breadboard-compatible package</summary>
3852.    <g:image_link>https://leap.tardate.com/Electronics101/BJT/PhaseSplitter/assets/PhaseSplitter_build.jpg</g:image_link>
3853.    <category term="BJT"/>
3854.    <category term="Signals"/>
3855.  </entry>
3856.  <entry>
3857.    <id>https://leap.tardate.com/playground/Lcd5110/DIYShield/</id>
3858.    <link href="https://leap.tardate.com/playground/Lcd5110/DIYShield/"/>
3859.    <updated>2018-02-09T11:34:52Z</updated>
3860.    <title>#377 Nokia 5110 Shield</title>
3861.    <summary>putting a Nokia 5110 on an Arduino Uno shield for no-fuss prototyping</summary>
3862.    <g:image_link>https://leap.tardate.com/playground/Lcd5110/DIYShield/assets/DIYShield_build.jpg</g:image_link>
3863.    <category term="LCD"/>
3864.    <category term="Arduino"/>
3865.  </entry>
3866.  <entry>
3867.    <id>https://leap.tardate.com/playground/PiezoVibrationDetector/</id>
3868.    <link href="https://leap.tardate.com/playground/PiezoVibrationDetector/"/>
3869.    <updated>2018-02-05T02:17:28Z</updated>
3870.    <title>#376 PiezoVibrationDetector</title>
3871.    <summary>counting beats per minute with a piezo tap sensor and an Arduino/ATmega328 analog comparator</summary>
3872.    <g:image_link>https://leap.tardate.com/playground/PiezoVibrationDetector/assets/PiezoVibrationDetector_build.jpg</g:image_link>
3873.    <category term="Arduino"/>
3874.    <category term="Piezo"/>
3875.  </entry>
3876.  <entry>
3877.    <id>https://leap.tardate.com/Radio/ThreeTransistorShortWaveReceiver/</id>
3878.    <link href="https://leap.tardate.com/Radio/ThreeTransistorShortWaveReceiver/"/>
3879.    <updated>2018-01-28T15:48:22Z</updated>
3880.    <title>#375 Three Transistor Shortwave Receiver</title>
3881.    <summary>building a simple 3-transistor regenerative receiver for HF shortwave</summary>
3882.    <g:image_link>https://leap.tardate.com/Radio/ThreeTransistorShortWaveReceiver/assets/ThreeTransistorShortWaveReceiver_build.jpg</g:image_link>
3883.    <category term="Radio"/>
3884.    <category term="HF"/>
3885.  </entry>
3886.  <entry>
3887.    <id>https://leap.tardate.com/Electronics101/VoltageReference/LT1019/</id>
3888.    <link href="https://leap.tardate.com/Electronics101/VoltageReference/LT1019/"/>
3889.    <updated>2018-01-26T03:08:43Z</updated>
3890.    <title>#374 VoltageReference/LT1019</title>
3891.    <summary>exploring the LT1019 precision reference, tested with an Arduino as an external voltage reference</summary>
3892.    <g:image_link>https://leap.tardate.com/Electronics101/VoltageReference/LT1019/assets/LT1019_build.jpg</g:image_link>
3893.    <category term="Voltage Reference"/>
3894.  </entry>
3895.  <entry>
3896.    <id>https://leap.tardate.com/Audio/AudioEffectsChips/PX835/</id>
3897.    <link href="https://leap.tardate.com/Audio/AudioEffectsChips/PX835/"/>
3898.    <updated>2019-09-29T13:47:06Z</updated>
3899.    <title>#373 PX835 Audio Effects Chip</title>
3900.    <summary>figuring out how to use the PX835 &quot;16 Kind of Sound Doorbell Chip&quot; music chip</summary>
3901.    <g:image_link>https://leap.tardate.com/Audio/AudioEffectsChips/PX835/assets/PX835_build.jpg</g:image_link>
3902.    <category term="Audio"/>
3903.    <category term="Music Chips"/>
3904.  </entry>
3905.  <entry>
3906.    <id>https://leap.tardate.com/Equipment/MilliVoltmeterDIY/</id>
3907.    <link href="https://leap.tardate.com/Equipment/MilliVoltmeterDIY/"/>
3908.    <updated>2018-01-16T16:27:03Z</updated>
3909.    <title>#372 MilliVoltmeterDIY</title>
3910.    <summary>an ATmega328-based millivolt meter based on a design by Scullcom Hobby Electronics. Uses an LTC2400 ADC and LT1019 voltage reference</summary>
3911.    <g:image_link>https://leap.tardate.com/Equipment/MilliVoltmeterDIY/assets/MilliVoltmeterDIY_build.jpg</g:image_link>
3912.    <category term="ATmega"/>
3913.    <category term="ADC"/>
3914.    <category term="Tools"/>
3915.    <category term="Test Equipment"/>
3916.  </entry>
3917.  <entry>
3918.    <id>https://leap.tardate.com/Electronics101/BJT/CommonEmitterAmplifier/</id>
3919.    <link href="https://leap.tardate.com/Electronics101/BJT/CommonEmitterAmplifier/"/>
3920.    <updated>2018-01-16T16:27:03Z</updated>
3921.    <title>#371 CommonEmitterAmplifier</title>
3922.    <summary>all about BJT common-emitter amplifier biasing and class of operation</summary>
3923.    <g:image_link>https://leap.tardate.com/Electronics101/BJT/CommonEmitterAmplifier/assets/CommonEmitterAmplifier_build.jpg</g:image_link>
3924.    <category term="BJT"/>
3925.  </entry>
3926.  <entry>
3927.    <id>https://leap.tardate.com/Electronics101/DigitaSwitch/TS3A5018/</id>
3928.    <link href="https://leap.tardate.com/Electronics101/DigitaSwitch/TS3A5018/"/>
3929.    <updated>2018-01-11T16:14:48Z</updated>
3930.    <title>#370 DigitaSwitch/TS3A5018</title>
3931.    <summary>testing the TS3A5018 Quad SPDT Analog Switch with a simple 555 timer and Arduino demo</summary>
3932.    <g:image_link>https://leap.tardate.com/Electronics101/DigitaSwitch/TS3A5018/assets/TS3A5018_build.jpg</g:image_link>
3933.    <category term="Arduino"/>
3934.    <category term="Digital Switch"/>
3935.    <category term="555 Timer"/>
3936.  </entry>
3937.  <entry>
3938.    <id>https://leap.tardate.com/BoldportClub/ananas/</id>
3939.    <link href="https://leap.tardate.com/BoldportClub/ananas/"/>
3940.    <updated>2018-01-07T12:30:07Z</updated>
3941.    <title>#369 Ananas</title>
3942.    <summary>building the tropical end-of-year present from Boldport Club, Project #20 - ananas!</summary>
3943.    <g:image_link>https://leap.tardate.com/BoldportClub/ananas/assets/ananas_build.jpg</g:image_link>
3944.    <category term="Boldport"/>
3945.    <category term="Oscillators"/>
3946.  </entry>
3947.  <entry>
3948.    <id>https://leap.tardate.com/Audio/GranularSynth/</id>
3949.    <link href="https://leap.tardate.com/Audio/GranularSynth/"/>
3950.    <updated>2019-06-02T04:21:51Z</updated>
3951.    <title>#368 GranularSynth</title>
3952.    <summary>building an ATmega328 granular synth module in an Altoids can ..  because granular synthesis is a basically how they make Altoids, right?</summary>
3953.    <g:image_link>https://leap.tardate.com/Audio/GranularSynth/assets/GranularSynth_build.jpg</g:image_link>
3954.    <category term="Audio"/>
3955.    <category term="Arduino"/>
3956.  </entry>
3957.  <entry>
3958.    <id>https://leap.tardate.com/playground/nRF24/Scanner/</id>
3959.    <link href="https://leap.tardate.com/playground/nRF24/Scanner/"/>
3960.    <updated>2018-01-03T18:42:05Z</updated>
3961.    <title>#367 nRF24/Scanner</title>
3962.    <summary>a 2.4GHz channel scanner for the nRF24l01+ with Nokia 5110 LCD display</summary>
3963.    <g:image_link>https://leap.tardate.com/playground/nRF24/Scanner/assets/Scanner_build.jpg</g:image_link>
3964.    <category term="nRF24"/>
3965.    <category term="Arduino"/>
3966.  </entry>
3967.  <entry>
3968.    <id>https://leap.tardate.com/playground/Lcd5110/AdafruitSoftwareSPI/</id>
3969.    <link href="https://leap.tardate.com/playground/Lcd5110/AdafruitSoftwareSPI/"/>
3970.    <updated>2018-01-03T18:42:05Z</updated>
3971.    <title>#366 Lcd5110/AdafruitSoftwareSPI</title>
3972.    <summary>a quick Nokia 5110 LCD test using software SPI and the Adafruit PCD8544 library</summary>
3973.    <g:image_link>https://leap.tardate.com/playground/Lcd5110/AdafruitSoftwareSPI/assets/AdafruitSoftwareSPI_build.jpg</g:image_link>
3974.    <category term="LCD"/>
3975.    <category term="Arduino"/>
3976.  </entry>
3977.  <entry>
3978.    <id>https://leap.tardate.com/playground/Lcd5110/AdafruitHardwareSPI/</id>
3979.    <link href="https://leap.tardate.com/playground/Lcd5110/AdafruitHardwareSPI/"/>
3980.    <updated>2018-01-03T18:42:05Z</updated>
3981.    <title>#365 Lcd5110/AdafruitHardwareSPI</title>
3982.    <summary>a quick Nokia 5110 LCD test using hardware SPI and the Adafruit PCD8544 library</summary>
3983.    <g:image_link>https://leap.tardate.com/playground/Lcd5110/AdafruitHardwareSPI/assets/AdafruitHardwareSPI_build.jpg</g:image_link>
3984.    <category term="LCD"/>
3985.    <category term="Arduino"/>
3986.  </entry>
3987.  <entry>
3988.    <id>https://leap.tardate.com/playground/ClassicNokia/</id>
3989.    <link href="https://leap.tardate.com/playground/ClassicNokia/"/>
3990.    <updated>2020-03-14T16:56:38Z</updated>
3991.    <title>#364 ClassicNokia</title>
3992.    <summary>just a quick transcription of the classic Nokia 3310 ringtone for Arduino</summary>
3993.    <g:image_link>https://leap.tardate.com/playground/ClassicNokia/assets/ClassicNokia_build.jpg</g:image_link>
3994.    <category term="Audio"/>
3995.    <category term="Arduino"/>
3996.  </entry>
3997.  <entry>
3998.    <id>https://leap.tardate.com/BoldportClub/binco/</id>
3999.    <link href="https://leap.tardate.com/BoldportClub/binco/"/>
4000.    <updated>2017-12-29T13:50:08Z</updated>
4001.    <title>#363 BINCO</title>
4002.    <summary>BINCO is a little up or down &quot;fidget&quot; counter, Project #19 of the Boldport Club</summary>
4003.    <g:image_link>https://leap.tardate.com/BoldportClub/binco/assets/binco_build.jpg</g:image_link>
4004.    <category term="Boldport"/>
4005.    <category term="PCB Design"/>
4006.    <category term="LED"/>
4007.    <category term="CMOS/TTL"/>
4008.  </entry>
4009.  <entry>
4010.    <id>https://leap.tardate.com/Audio/AudioEffectsChips/H83A/</id>
4011.    <link href="https://leap.tardate.com/Audio/AudioEffectsChips/H83A/"/>
4012.    <updated>2019-09-29T13:47:06Z</updated>
4013.    <title>#362 H83A Audio Effects Chip</title>
4014.    <summary>figuring out how to use the H-83A &quot;12 songs&quot; music chip</summary>
4015.    <g:image_link>https://leap.tardate.com/Audio/AudioEffectsChips/H83A/assets/H83A_build.jpg</g:image_link>
4016.    <category term="Audio"/>
4017.    <category term="Music Chips"/>
4018.  </entry>
4019.  <entry>
4020.    <id>https://leap.tardate.com/playground/TFT/Color128x128/</id>
4021.    <link href="https://leap.tardate.com/playground/TFT/Color128x128/"/>
4022.    <updated>2017-12-24T18:46:29Z</updated>
4023.    <title>#361 TFT/Color128x128</title>
4024.    <summary>testing a 128x128 colour TFT LCD with a couple of different Arduino libraries</summary>
4025.    <g:image_link>https://leap.tardate.com/playground/TFT/Color128x128/assets/Color128x128_build.jpg</g:image_link>
4026.    <category term="TFT LCD"/>
4027.    <category term="Arduino"/>
4028.  </entry>
4029.  <entry>
4030.    <id>https://leap.tardate.com/Electronics101/VoltageReference/TL431/ShuntRegulator/</id>
4031.    <link href="https://leap.tardate.com/Electronics101/VoltageReference/TL431/ShuntRegulator/"/>
4032.    <updated>2018-01-26T03:08:43Z</updated>
4033.    <title>#360 TL431/ShuntRegulator</title>
4034.    <summary>testing a TL431 voltage reference (regulator) circuit with manual course and fine trim</summary>
4035.    <g:image_link>https://leap.tardate.com/Electronics101/VoltageReference/TL431/ShuntRegulator/assets/ShuntRegulator_build.jpg</g:image_link>
4036.    <category term=" Power"/>
4037.    <category term="Regulator"/>
4038.    <category term="Reference"/>
4039.  </entry>
4040.  <entry>
4041.    <id>https://leap.tardate.com/Audio/AudioEffectsChips/HS088/</id>
4042.    <link href="https://leap.tardate.com/Audio/AudioEffectsChips/HS088/"/>
4043.    <updated>2019-09-29T13:47:06Z</updated>
4044.    <title>#359 HS088 Audio Effects Chip</title>
4045.    <summary>figuring out the HS088 &quot;Ding Dong&quot; audio effects chip</summary>
4046.    <g:image_link>https://leap.tardate.com/Audio/AudioEffectsChips/HS088/assets/HS088_build.jpg</g:image_link>
4047.    <category term="Audio"/>
4048.    <category term="Music Chips"/>
4049.  </entry>
4050.  <entry>
4051.    <id>https://leap.tardate.com/Electronics101/SwitchModePowerSupplies/MC34063/ModuleKit/</id>
4052.    <link href="https://leap.tardate.com/Electronics101/SwitchModePowerSupplies/MC34063/ModuleKit/"/>
4053.    <updated>2017-12-20T14:33:54Z</updated>
4054.    <title>#358 MC34063 Boost Converter Kit</title>
4055.    <summary>build and test an MC34063-based boost converter</summary>
4056.    <g:image_link>https://leap.tardate.com/Electronics101/SwitchModePowerSupplies/MC34063/ModuleKit/assets/ModuleKit_build.jpg</g:image_link>
4057.    <category term="Power"/>
4058.  </entry>
4059.  <entry>
4060.    <id>https://leap.tardate.com/BoldportClub/TheMonarch/</id>
4061.    <link href="https://leap.tardate.com/BoldportClub/TheMonarch/"/>
4062.    <updated>2017-12-18T15:36:30Z</updated>
4063.    <title>#357 BoldportClub/TheMonarch</title>
4064.    <summary>the third in a series of beautiful electronic &quot;bug&quot; boards from the Boldport Club, Project #18 October 2017</summary>
4065.    <g:image_link>https://leap.tardate.com/BoldportClub/TheMonarch/assets/TheMonarch_build.jpg</g:image_link>
4066.    <category term="Boldport"/>
4067.    <category term="PCB Design"/>
4068.    <category term="Bugs"/>
4069.    <category term="LFSR"/>
4070.  </entry>
4071.  <entry>
4072.    <id>https://leap.tardate.com/Audio/AudioEffectsChips/PX088A/</id>
4073.    <link href="https://leap.tardate.com/Audio/AudioEffectsChips/PX088A/"/>
4074.    <updated>2019-09-29T13:47:06Z</updated>
4075.    <title>#356 PX088A Audio Effects Chip</title>
4076.    <summary>figuring out how to use the PX088A &quot;Für Elise&quot; music chip</summary>
4077.    <g:image_link>https://leap.tardate.com/Audio/AudioEffectsChips/PX088A/assets/PX088A_build.jpg</g:image_link>
4078.    <category term="Audio"/>
4079.    <category term="Music Chips"/>
4080.  </entry>
4081.  <entry>
4082.    <id>https://leap.tardate.com/Kraft/snowflake/</id>
4083.    <link href="https://leap.tardate.com/Kraft/snowflake/"/>
4084.    <updated>2017-12-14T11:57:58Z</updated>
4085.    <title>#355 Snow Flake</title>
4086.    <summary>an Atmel SAM D ARM Cortex-M0-controlled LED ornament produced by @LuckResistor and shared with the Boldport Club community as a special project</summary>
4087.    <g:image_link>https://leap.tardate.com/Kraft/snowflake/assets/snowflake_build.jpg</g:image_link>
4088.    <category term="Craft"/>
4089.    <category term="ARM"/>
4090.    <category term="LED"/>
4091.  </entry>
4092.  <entry>
4093.    <id>https://leap.tardate.com/Kinetics/SpiderBot/</id>
4094.    <link href="https://leap.tardate.com/Kinetics/SpiderBot/"/>
4095.    <updated>2017-11-15T12:38:17Z</updated>
4096.    <title>#354 SpiderBot</title>
4097.    <summary>Boldport Club PissOff mutant offspring .. with spider legs and scuttling drive system</summary>
4098.    <g:image_link>https://leap.tardate.com/Kinetics/SpiderBot/assets/SpiderBot_build.jpg</g:image_link>
4099.    <category term="Boldport"/>
4100.    <category term="Kinetics"/>
4101.  </entry>
4102.  <entry>
4103.    <id>https://leap.tardate.com/Electronics101/DigitalLogic/DFlipFlop/</id>
4104.    <link href="https://leap.tardate.com/Electronics101/DigitalLogic/DFlipFlop/"/>
4105.    <updated>2017-10-30T13:40:33Z</updated>
4106.    <title>#353 D Flip-Flop</title>
4107.    <summary>building a clocked D Flip-flop with 74LS00 NAND gates</summary>
4108.    <g:image_link>https://leap.tardate.com/Electronics101/DigitalLogic/DFlipFlop/assets/DFlipFlop_build.jpg</g:image_link>
4109.    <category term="Digital Logic"/>
4110.    <category term="CMOS/TTL"/>
4111.  </entry>
4112.  <entry>
4113.    <id>https://leap.tardate.com/Radio/SDR/DecodingACARS/</id>
4114.    <link href="https://leap.tardate.com/Radio/SDR/DecodingACARS/"/>
4115.    <updated>2019-09-29T13:47:06Z</updated>
4116.    <title>#352 Decoding ACARS</title>
4117.    <summary>decoding ACARS with rtl_acars_ng and a R820T2+RTL2832U dongle on MacOSX</summary>
4118.    <g:image_link>https://leap.tardate.com/Radio/SDR/DecodingACARS/assets/DecodingACARS_build.jpg</g:image_link>
4119.    <category term="SDR"/>
4120.    <category term="Radio"/>
4121.  </entry>
4122.  <entry>
4123.    <id>https://leap.tardate.com/Radio/SDR/RtlSdrDongle/</id>
4124.    <link href="https://leap.tardate.com/Radio/SDR/RtlSdrDongle/"/>
4125.    <updated>2019-09-29T13:47:06Z</updated>
4126.    <title>#351 RTL-SDR Dongle</title>
4127.    <summary>getting started with an R820T2+RTL2832U dongle and open-source SDR software on MacOSX (gprx, CubicSDR)</summary>
4128.    <g:image_link>https://leap.tardate.com/Radio/SDR/RtlSdrDongle/assets/RtlSdrDongle_build.jpg</g:image_link>
4129.    <category term="SDR"/>
4130.    <category term="Radio"/>
4131.  </entry>
4132.  <entry>
4133.    <id>https://leap.tardate.com/Kraft/CircuitScribe/LiteWings/</id>
4134.    <link href="https://leap.tardate.com/Kraft/CircuitScribe/LiteWings/"/>
4135.    <updated>2017-10-26T16:44:35Z</updated>
4136.    <title>#350 LiteWings</title>
4137.    <summary>learning about conductive ink with the CircuitScribe LiteWings kit</summary>
4138.    <g:image_link>https://leap.tardate.com/Kraft/CircuitScribe/LiteWings/assets/LiteWings_build.jpg</g:image_link>
4139.    <category term="Conductive Ink"/>
4140.    <category term="Craft"/>
4141.  </entry>
4142.  <entry>
4143.    <id>https://leap.tardate.com/BoldportClub/stringy/DemoBurner/</id>
4144.    <link href="https://leap.tardate.com/BoldportClub/stringy/DemoBurner/"/>
4145.    <updated>2017-10-17T12:35:14Z</updated>
4146.    <title>#349 stringy/DemoBurner</title>
4147.    <summary>burning a new demo mode for the Boldport Club Stringy, with a Ruby gem for MusicXML conversion to PIC assembler</summary>
4148.    <g:image_link>https://leap.tardate.com/BoldportClub/stringy/DemoBurner/assets/DemoBurner_build.jpg</g:image_link>
4149.    <category term="Boldport"/>
4150.    <category term="PIC"/>
4151.  </entry>
4152.  <entry>
4153.    <id>https://leap.tardate.com/Electronics101/DigitalLogic/DLatch/</id>
4154.    <link href="https://leap.tardate.com/Electronics101/DigitalLogic/DLatch/"/>
4155.    <updated>2017-10-10T15:54:26Z</updated>
4156.    <title>#348 D Latch</title>
4157.    <summary>building a D Latch with 74LS00 NAND gates</summary>
4158.    <g:image_link>https://leap.tardate.com/Electronics101/DigitalLogic/DLatch/assets/DLatch_build.jpg</g:image_link>
4159.    <category term="Digital Logic"/>
4160.    <category term="CMOS/TTL"/>
4161.  </entry>
4162.  <entry>
4163.    <id>https://leap.tardate.com/Electronics101/Connectors/RF/</id>
4164.    <link href="https://leap.tardate.com/Electronics101/Connectors/RF/"/>
4165.    <updated>2017-10-10T15:54:25Z</updated>
4166.    <title>#347 RF Connectors</title>
4167.    <summary>notes on miscellaneous RF connectors</summary>
4168.    <g:image_link>https://leap.tardate.com/Electronics101/Connectors/RF/assets/RF_build.jpg</g:image_link>
4169.    <category term="Radio"/>
4170.    <category term="Connectors"/>
4171.  </entry>
4172.  <entry>
4173.    <id>https://leap.tardate.com/Electronics101/DigitalLogic/SRLatchWithNandGates/</id>
4174.    <link href="https://leap.tardate.com/Electronics101/DigitalLogic/SRLatchWithNandGates/"/>
4175.    <updated>2017-10-06T01:44:22Z</updated>
4176.    <title>#346 NAND Gate SR Latch</title>
4177.    <summary>Set-Reset latch implemented with NAND gates</summary>
4178.    <g:image_link>https://leap.tardate.com/Electronics101/DigitalLogic/SRLatchWithNandGates/assets/SRLatchWithNandGates_build.jpg</g:image_link>
4179.    <category term="Digital Logic"/>
4180.    <category term="CMOS/TTL"/>
4181.  </entry>
4182.  <entry>
4183.    <id>https://leap.tardate.com/BoldportClub/mostap/</id>
4184.    <link href="https://leap.tardate.com/BoldportClub/mostap/"/>
4185.    <updated>2017-10-03T14:23:40Z</updated>
4186.    <title>#345 BoldportClub/mostap</title>
4187.    <summary>upgrading the tap to modern CMOS and MOSFET technology, circa 1975 - another Boldport Club retro classic. The mostap is a touch sensor using NAND-gate flip-flops and FET output drivers.</summary>
4188.    <g:image_link>https://leap.tardate.com/BoldportClub/mostap/assets/mostap_build.jpg</g:image_link>
4189.    <category term="Boldport"/>
4190.    <category term="CMOS"/>
4191.  </entry>
4192.  <entry>
4193.    <id>https://leap.tardate.com/ESP8266/micropython/GettingStarted/</id>
4194.    <link href="https://leap.tardate.com/ESP8266/micropython/GettingStarted/"/>
4195.    <updated>2017-09-26T17:01:34Z</updated>
4196.    <title>#344 ESP8266/micropython/GettingStarted</title>
4197.    <summary>getting MicroPython up and running with an ESP-01 ESP8266</summary>
4198.    <g:image_link>https://leap.tardate.com/ESP8266/micropython/GettingStarted/assets/GettingStarted_build.jpg</g:image_link>
4199.    <category term="ESP8266"/>
4200.    <category term="MicroPython"/>
4201.  </entry>
4202.  <entry>
4203.    <id>https://leap.tardate.com/ESP8266/Sensors/DHT11/</id>
4204.    <link href="https://leap.tardate.com/ESP8266/Sensors/DHT11/"/>
4205.    <updated>2017-09-25T15:38:43Z</updated>
4206.    <title>#343 ESP8266/Sensors/DHT11</title>
4207.    <summary>reading temperature and humidity with a DHT11 sensor and ESP-01, coding with ESP8266 core for Arduino</summary>
4208.    <g:image_link>https://leap.tardate.com/ESP8266/Sensors/DHT11/assets/DHT11_build.jpg</g:image_link>
4209.    <category term="ESP8266"/>
4210.    <category term="Sensors"/>
4211.  </entry>
4212.  <entry>
4213.    <id>https://leap.tardate.com/ESP8266/MorseBlinky/</id>
4214.    <link href="https://leap.tardate.com/ESP8266/MorseBlinky/"/>
4215.    <updated>2017-09-24T13:47:05Z</updated>
4216.    <title>#342 ESP8266/MorseBlinky</title>
4217.    <summary>building code for an ESP-01 with the ESP8266 core for Arduino and demonstrate with a simple morse code blinker</summary>
4218.    <g:image_link>https://leap.tardate.com/ESP8266/MorseBlinky/assets/MorseBlinky_build.jpg</g:image_link>
4219.    <category term="ESP8266"/>
4220.  </entry>
4221.  <entry>
4222.    <id>https://leap.tardate.com/Electronics101/Power/UsbPowerSupplyKit/</id>
4223.    <link href="https://leap.tardate.com/Electronics101/Power/UsbPowerSupplyKit/"/>
4224.    <updated>2017-09-18T14:43:37Z</updated>
4225.    <title>#341 UsbPowerSupplyKit</title>
4226.    <summary>building a USB Wall Wart and taking a look at how they work .. instead of taking them apart or having them blow up</summary>
4227.    <g:image_link>https://leap.tardate.com/Electronics101/Power/UsbPowerSupplyKit/assets/UsbPowerSupplyKit_build.jpg</g:image_link>
4228.    <category term="Power"/>
4229.    <category term="USB"/>
4230.  </entry>
4231.  <entry>
4232.    <id>https://leap.tardate.com/BoldportClub/IxpandO/</id>
4233.    <link href="https://leap.tardate.com/BoldportClub/IxpandO/"/>
4234.    <updated>2017-09-10T15:59:16Z</updated>
4235.    <title>#340 BoldportClub/IxpandO</title>
4236.    <summary>an input/output expansion board based on Microchip's MCP23017, BoldportClub Project #16. Demo program covers digital output and interrupt-driven input</summary>
4237.    <g:image_link>https://leap.tardate.com/BoldportClub/IxpandO/assets/IxpandO_build.jpg</g:image_link>
4238.    <category term="Boldport"/>
4239.    <category term="PCB Design"/>
4240.    <category term="Port Expander"/>
4241.  </entry>
4242.  <entry>
4243.    <id>https://leap.tardate.com/Electronics101/GuitarEffects/DelayKit/</id>
4244.    <link href="https://leap.tardate.com/Electronics101/GuitarEffects/DelayKit/"/>
4245.    <updated>2017-08-27T15:38:39Z</updated>
4246.    <title>#339 DelayKit</title>
4247.    <summary>build and test a PT2399-based analogue delay pedal kit</summary>
4248.    <g:image_link>https://leap.tardate.com/Electronics101/GuitarEffects/DelayKit/assets/DelayKit_build.jpg</g:image_link>
4249.    <category term="Guitar Effects"/>
4250.    <category term="Audio"/>
4251.  </entry>
4252.  <entry>
4253.    <id>https://leap.tardate.com/Kraft/GlowBall/</id>
4254.    <link href="https://leap.tardate.com/Kraft/GlowBall/"/>
4255.    <updated>2017-08-24T18:00:18Z</updated>
4256.    <title>#338 GlowBall</title>
4257.    <summary>building LED effects for a Glass Eye Studio Celestial Planet Weight</summary>
4258.    <g:image_link>https://leap.tardate.com/Kraft/GlowBall/assets/GlowBall_build.jpg</g:image_link>
4259.    <category term="LED"/>
4260.    <category term="Oscillators"/>
4261.    <category term="Power"/>
4262.    <category term="Craft"/>
4263.  </entry>
4264.  <entry>
4265.    <id>https://leap.tardate.com/Electronics101/RgbLedGlow/</id>
4266.    <link href="https://leap.tardate.com/Electronics101/RgbLedGlow/"/>
4267.    <updated>2017-08-19T17:33:24Z</updated>
4268.    <title>#337 RgbLedGlow</title>
4269.    <summary>rainbow glow effects with an RGB LED and OpAmp oscillators</summary>
4270.    <g:image_link>https://leap.tardate.com/Electronics101/RgbLedGlow/assets/RgbLedGlow_build.jpg</g:image_link>
4271.    <category term="LED"/>
4272.    <category term="Oscillators"/>
4273.  </entry>
4274.  <entry>
4275.    <id>https://leap.tardate.com/Electronics101/Oscillators/ComparatorRelaxation/</id>
4276.    <link href="https://leap.tardate.com/Electronics101/Oscillators/ComparatorRelaxation/"/>
4277.    <updated>2017-08-19T13:50:42Z</updated>
4278.    <title>#336 Comparator Relaxation Oscillator</title>
4279.    <summary>test a classic comparator-based relaxation oscillator, modified for single-supply LM358 OpAmp</summary>
4280.    <g:image_link>https://leap.tardate.com/Electronics101/Oscillators/ComparatorRelaxation/assets/ComparatorRelaxation_build.jpg</g:image_link>
4281.    <category term="OpAmp"/>
4282.    <category term="Oscillators"/>
4283.  </entry>
4284.  <entry>
4285.    <id>https://leap.tardate.com/Electronics101/MCP2200/Chaser/</id>
4286.    <link href="https://leap.tardate.com/Electronics101/MCP2200/Chaser/"/>
4287.    <updated>2017-08-19T13:50:42Z</updated>
4288.    <title>#335 MCP2200/Chaser</title>
4289.    <summary>using the MCP2200 GPIO from MacOSX. With great power comes great responsibility to blink LEDs</summary>
4290.    <g:image_link>https://leap.tardate.com/Electronics101/MCP2200/Chaser/assets/Chaser_build.jpg</g:image_link>
4291.    <category term="UART"/>
4292.    <category term="USB"/>
4293.    <category term="LED"/>
4294.  </entry>
4295.  <entry>
4296.    <id>https://leap.tardate.com/Electronics101/MCP2200/DevKit/</id>
4297.    <link href="https://leap.tardate.com/Electronics101/MCP2200/DevKit/"/>
4298.    <updated>2017-08-15T17:19:04Z</updated>
4299.    <title>#334 MCP2200/DevKit</title>
4300.    <summary>exploring the capabilities of the MCP2200 USB-to-UART and program it from a MacOSX host</summary>
4301.    <g:image_link>https://leap.tardate.com/Electronics101/MCP2200/DevKit/assets/DevKit_build.jpg</g:image_link>
4302.    <category term="UART"/>
4303.    <category term="USB"/>
4304.  </entry>
4305.  <entry>
4306.    <id>https://leap.tardate.com/playground/VoltageSelfMeasurement/</id>
4307.    <link href="https://leap.tardate.com/playground/VoltageSelfMeasurement/"/>
4308.    <updated>2017-08-15T17:19:04Z</updated>
4309.    <title>#333 VoltageSelfMeasurement</title>
4310.    <summary>self-measurement of an Arduino's supply voltage (Vcc)</summary>
4311.    <g:image_link>https://leap.tardate.com/playground/VoltageSelfMeasurement/assets/VoltageSelfMeasurement_build.jpg</g:image_link>
4312.    <category term="Arduino"/>
4313.    <category term="ADC"/>
4314.  </entry>
4315.  <entry>
4316.    <id>https://leap.tardate.com/Electronics101/Oscillators/RCPhaseShiftBJT/</id>
4317.    <link href="https://leap.tardate.com/Electronics101/Oscillators/RCPhaseShiftBJT/"/>
4318.    <updated>2017-08-13T11:01:24Z</updated>
4319.    <title>#332 RCPhaseShiftBJT</title>
4320.    <summary>testing an RC phase-shift oscillator using a BJT amplifier</summary>
4321.    <g:image_link>https://leap.tardate.com/Electronics101/Oscillators/RCPhaseShiftBJT/assets/RCPhaseShiftBJT_build.jpg</g:image_link>
4322.    <category term="BJT"/>
4323.    <category term="RC"/>
4324.    <category term="Oscillators"/>
4325.  </entry>
4326.  <entry>
4327.    <id>https://leap.tardate.com/PIC/GettingBlinky/</id>
4328.    <link href="https://leap.tardate.com/PIC/GettingBlinky/"/>
4329.    <updated>2017-08-13T11:01:24Z</updated>
4330.    <title>#331 PIC/GettingBlinky</title>
4331.    <summary>getting up and running building a PIC assembler project on MacOSX with a PIC12F675 development board. Let's get Blinky!</summary>
4332.    <g:image_link>https://leap.tardate.com/PIC/GettingBlinky/assets/GettingBlinky_build.jpg</g:image_link>
4333.    <category term="PIC"/>
4334.    <category term="LED"/>
4335.  </entry>
4336.  <entry>
4337.    <id>https://leap.tardate.com/Electronics101/Power/Any2AnyPowerPack/</id>
4338.    <link href="https://leap.tardate.com/Electronics101/Power/Any2AnyPowerPack/"/>
4339.    <updated>2017-08-06T11:06:07Z</updated>
4340.    <title>#330 Power/Any2AnyPowerPack</title>
4341.    <summary>a 2.1mm DC adapter pack with battery bypass and any-polarity to any-polarity connectors</summary>
4342.    <g:image_link>https://leap.tardate.com/Electronics101/Power/Any2AnyPowerPack/assets/Any2AnyPowerPack_build.jpg</g:image_link>
4343.    <category term="Power"/>
4344.  </entry>
4345.  <entry>
4346.    <id>https://leap.tardate.com/Electronics101/Connectors/Power/</id>
4347.    <link href="https://leap.tardate.com/Electronics101/Connectors/Power/"/>
4348.    <updated>2017-10-10T15:54:25Z</updated>
4349.    <title>#329 PowerConnectors</title>
4350.    <summary>obsessing over all manner of DC power connectors</summary>
4351.    <g:image_link>https://leap.tardate.com/Electronics101/Connectors/Power/assets/Power_build.jpg</g:image_link>
4352.    <category term="Power"/>
4353.  </entry>
4354.  <entry>
4355.    <id>https://leap.tardate.com/Electronics101/555Timer/VoltageControlledOscillator/</id>
4356.    <link href="https://leap.tardate.com/Electronics101/555Timer/VoltageControlledOscillator/"/>
4357.    <updated>2017-08-03T17:51:17Z</updated>
4358.    <title>#328 VoltageControlledOscillator/555</title>
4359.    <summary>a voltage-controlled oscillator (VCO) using the 555 timer</summary>
4360.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/VoltageControlledOscillator/assets/VoltageControlledOscillator_build.jpg</g:image_link>
4361.    <category term="Oscillators"/>
4362.    <category term="VCO"/>
4363.    <category term="555 Timer"/>
4364.  </entry>
4365.  <entry>
4366.    <id>https://leap.tardate.com/Electronics101/Mixers/RFDiodeRing/</id>
4367.    <link href="https://leap.tardate.com/Electronics101/Mixers/RFDiodeRing/"/>
4368.    <updated>2017-07-30T14:59:45Z</updated>
4369.    <title>#327 Mixers/RFDiodeRing</title>
4370.    <summary>a diode ring double-balanced frequency mixer</summary>
4371.    <g:image_link>https://leap.tardate.com/Electronics101/Mixers/RFDiodeRing/assets/RFDiodeRing_build.jpg</g:image_link>
4372.    <category term="Radio"/>
4373.    <category term="Mixers"/>
4374.  </entry>
4375.  <entry>
4376.    <id>https://leap.tardate.com/Electronics101/Mixers/</id>
4377.    <link href="https://leap.tardate.com/Electronics101/Mixers/"/>
4378.    <updated>2017-07-30T14:59:45Z</updated>
4379.    <title>#326 Mixers</title>
4380.    <summary>all about frequency mixers</summary>
4381.    <g:image_link>https://leap.tardate.com/Electronics101/Mixers/assets/Mixers_build.jpg</g:image_link>
4382.    <category term="Radio"/>
4383.    <category term="Mixers"/>
4384.  </entry>
4385.  <entry>
4386.    <id>https://leap.tardate.com/BoldportClub/spoolt/</id>
4387.    <link href="https://leap.tardate.com/BoldportClub/spoolt/"/>
4388.    <updated>2017-07-27T17:50:06Z</updated>
4389.    <title>#325 BoldportClub/spoolt</title>
4390.    <summary>pimp my spoolt - the Boldport Club solder dispenser (Project #15, July 2017)</summary>
4391.    <g:image_link>https://leap.tardate.com/BoldportClub/spoolt/assets/spoolt_build.jpg</g:image_link>
4392.    <category term="Boldport"/>
4393.    <category term="Soldering"/>
4394.  </entry>
4395.  <entry>
4396.    <id>https://leap.tardate.com/Equipment/Labrador/</id>
4397.    <link href="https://leap.tardate.com/Equipment/Labrador/"/>
4398.    <updated>2017-07-27T17:50:06Z</updated>
4399.    <title>#324 Labrador</title>
4400.    <summary>first look at the EspoTek Labrador USB &quot;lab-on-a-board&quot; hardware and software</summary>
4401.    <g:image_link>https://leap.tardate.com/Equipment/Labrador/assets/Labrador_build.jpg</g:image_link>
4402.    <category term="Tools"/>
4403.    <category term="Test Equipment"/>
4404.  </entry>
4405.  <entry>
4406.    <id>https://leap.tardate.com/BoldportClub/stringy/</id>
4407.    <link href="https://leap.tardate.com/BoldportClub/stringy/"/>
4408.    <updated>2017-06-26T15:07:01Z</updated>
4409.    <title>#323 BoldportClub/stringy</title>
4410.    <summary>building and playing (mainly playing) the Boldport Club Stringy (Project #14)</summary>
4411.    <g:image_link>https://leap.tardate.com/BoldportClub/stringy/assets/stringy_build.jpg</g:image_link>
4412.    <category term="Boldport"/>
4413.    <category term="PIC"/>
4414.    <category term="Audio"/>
4415.  </entry>
4416.  <entry>
4417.    <id>https://leap.tardate.com/BoldportClub/cordwood-too/FidgetCube/</id>
4418.    <link href="https://leap.tardate.com/BoldportClub/cordwood-too/FidgetCube/"/>
4419.    <updated>2017-06-25T08:07:40Z</updated>
4420.    <title>#322 BoldportClub/cordwood-too/FidgetCube</title>
4421.    <summary>making a Fidget Cube controller for the Boldport Cordwood Too</summary>
4422.    <g:image_link>https://leap.tardate.com/BoldportClub/cordwood-too/FidgetCube/assets/FidgetCube_build.jpg</g:image_link>
4423.    <category term="Boldport"/>
4424.    <category term="Sensors"/>
4425.    <category term="LED"/>
4426.  </entry>
4427.  <entry>
4428.    <id>https://leap.tardate.com/BoldportClub/cordwood-too/</id>
4429.    <link href="https://leap.tardate.com/BoldportClub/cordwood-too/"/>
4430.    <updated>2017-06-15T12:00:17Z</updated>
4431.    <title>#321 BoldportClub/cordwood-too</title>
4432.    <summary>the Cordwood Puzzle returns! Boldport Club Project #13, May 2017</summary>
4433.    <g:image_link>https://leap.tardate.com/BoldportClub/cordwood-too/assets/cordwood-too_build.jpg</g:image_link>
4434.    <category term="Boldport"/>
4435.    <category term="PCB Design"/>
4436.    <category term="LED"/>
4437.  </entry>
4438.  <entry>
4439.    <id>https://leap.tardate.com/Electronics101/DigitalLogic/SyncJKCounter/</id>
4440.    <link href="https://leap.tardate.com/Electronics101/DigitalLogic/SyncJKCounter/"/>
4441.    <updated>2017-07-27T17:50:06Z</updated>
4442.    <title>#320 Synchronous JK Counter</title>
4443.    <summary>a synchronous 8-bit counter built with JK Flip-Flops</summary>
4444.    <g:image_link>https://leap.tardate.com/Electronics101/DigitalLogic/SyncJKCounter/assets/SyncJKCounter_build.jpg</g:image_link>
4445.    <category term="CMOS/TTL"/>
4446.    <category term="Digital Logic"/>
4447.  </entry>
4448.  <entry>
4449.    <id>https://leap.tardate.com/Electronics101/555Timer/DigitalLogicClock/</id>
4450.    <link href="https://leap.tardate.com/Electronics101/555Timer/DigitalLogicClock/"/>
4451.    <updated>2017-05-23T17:19:00Z</updated>
4452.    <title>#319 DigitalLogicClock</title>
4453.    <summary>build a flexible, low-frequency digital logic clock module</summary>
4454.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/DigitalLogicClock/assets/DigitalLogicClock_build.jpg</g:image_link>
4455.    <category term="555 Timer"/>
4456.    <category term="CMOS/TTL"/>
4457.  </entry>
4458.  <entry>
4459.    <id>https://leap.tardate.com/Electronics101/555Timer/Bistable/</id>
4460.    <link href="https://leap.tardate.com/Electronics101/555Timer/Bistable/"/>
4461.    <updated>2017-05-21T15:27:44Z</updated>
4462.    <title>#318 Bistable</title>
4463.    <summary>using the 555 timer as a bistable latch and button debouncer</summary>
4464.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/Bistable/assets/Bistable_build.jpg</g:image_link>
4465.    <category term="555 Timer"/>
4466.  </entry>
4467.  <entry>
4468.    <id>https://leap.tardate.com/Electronics101/SchmittTrigger/BasicDiscrete/</id>
4469.    <link href="https://leap.tardate.com/Electronics101/SchmittTrigger/BasicDiscrete/"/>
4470.    <updated>2017-05-21T15:27:44Z</updated>
4471.    <title>#317 Discrete Schmitt Trigger</title>
4472.    <summary>Exploring a basic emitter-coupled Schmitt Trigger circuit design with discrete components</summary>
4473.    <g:image_link>https://leap.tardate.com/Electronics101/SchmittTrigger/BasicDiscrete/assets/BasicDiscrete_build.jpg</g:image_link>
4474.    <category term="Schmitt"/>
4475.    <category term="BJT"/>
4476.  </entry>
4477.  <entry>
4478.    <id>https://leap.tardate.com/BoldportClub/QSOPBreakout/</id>
4479.    <link href="https://leap.tardate.com/BoldportClub/QSOPBreakout/"/>
4480.    <updated>2017-05-19T13:00:00Z</updated>
4481.    <title>#316 BoldportClub/QSOPBreakout</title>
4482.    <summary>all about soldering and the Boldport Club QSOP breakout board</summary>
4483.    <g:image_link>https://leap.tardate.com/BoldportClub/QSOPBreakout/assets/QSOPBreakout_build.jpg</g:image_link>
4484.    <category term="Boldport"/>
4485.    <category term="Soldering"/>
4486.  </entry>
4487.  <entry>
4488.    <id>https://leap.tardate.com/Electronics101/SwitchModePowerSupplies/MT3608/VariableBoost/</id>
4489.    <link href="https://leap.tardate.com/Electronics101/SwitchModePowerSupplies/MT3608/VariableBoost/"/>
4490.    <updated>2017-10-08T12:09:10Z</updated>
4491.    <title>#315 MT3608 Variable Boost</title>
4492.    <summary>testing the canonical variable boost circuit using the MT3608 High Efficiency 1.2MHz 2A Step Up Converter</summary>
4493.    <g:image_link>https://leap.tardate.com/Electronics101/SwitchModePowerSupplies/MT3608/VariableBoost/assets/VariableBoost_build.jpg</g:image_link>
4494.    <category term="Power"/>
4495.    <category term="SMPS"/>
4496.  </entry>
4497.  <entry>
4498.    <id>https://leap.tardate.com/playground/EEPROM/AT28C16/PEProgrammer/</id>
4499.    <link href="https://leap.tardate.com/playground/EEPROM/AT28C16/PEProgrammer/"/>
4500.    <updated>2017-05-11T12:01:51Z</updated>
4501.    <title>#314 AT28C16 EEPROM Programmer</title>
4502.    <summary>programming an AT28C16 64k EEPROM with an Arduino and MCP23S17 16-bit port expander</summary>
4503.    <g:image_link>https://leap.tardate.com/playground/EEPROM/AT28C16/PEProgrammer/assets/PEProgrammer_build.jpg</g:image_link>
4504.    <category term="EEPROM"/>
4505.    <category term="Arduino"/>
4506.  </entry>
4507.  <entry>
4508.    <id>https://leap.tardate.com/Electronics101/MCP23S17/</id>
4509.    <link href="https://leap.tardate.com/Electronics101/MCP23S17/"/>
4510.    <updated>2017-05-07T12:13:27Z</updated>
4511.    <title>#313 MCP23S17</title>
4512.    <summary>investigate and test the MCP23S17 16-Bit I/O Expander with serial interface</summary>
4513.    <g:image_link>https://leap.tardate.com/Electronics101/MCP23S17/assets/MCP23S17_build.jpg</g:image_link>
4514.    <category term="Arduino"/>
4515.    <category term="Port Expander"/>
4516.  </entry>
4517.  <entry>
4518.    <id>https://leap.tardate.com/BoldportClub/TheMatrix/Firecracker/</id>
4519.    <link href="https://leap.tardate.com/BoldportClub/TheMatrix/Firecracker/"/>
4520.    <updated>2017-06-05T11:23:09Z</updated>
4521.    <title>#312 TheMatrix/Firecracker</title>
4522.    <summary>a firecracker simulacrum running on the BoldportClub Matrix</summary>
4523.    <g:image_link>https://leap.tardate.com/BoldportClub/TheMatrix/Firecracker/assets/Firecracker_build.jpg</g:image_link>
4524.    <category term="Boldport"/>
4525.    <category term="LED"/>
4526.    <category term="AS1130"/>
4527.    <category term="Sensors"/>
4528.  </entry>
4529.  <entry>
4530.    <id>https://leap.tardate.com/BoldportClub/Juice/</id>
4531.    <link href="https://leap.tardate.com/BoldportClub/Juice/"/>
4532.    <updated>2017-04-30T06:29:37Z</updated>
4533.    <title>#311 BoldportClub/Juice</title>
4534.    <summary>building the Boldport Juice battery replacement kit (Project #12)</summary>
4535.    <g:image_link>https://leap.tardate.com/BoldportClub/Juice/assets/Juice_build.jpg</g:image_link>
4536.    <category term="Boldport"/>
4537.    <category term="PCB Design"/>
4538.    <category term="Power"/>
4539.  </entry>
4540.  <entry>
4541.    <id>https://leap.tardate.com/Radio/FM/TEA5767/</id>
4542.    <link href="https://leap.tardate.com/Radio/FM/TEA5767/"/>
4543.    <updated>2019-08-06T17:20:09Z</updated>
4544.    <title>#310 TEA5767 FM Receiver</title>
4545.    <summary>controlling the TEA5767 low-power FM stereo radio chip with an Arduino</summary>
4546.    <g:image_link>https://leap.tardate.com/Radio/FM/TEA5767/assets/TEA5767_build.jpg</g:image_link>
4547.    <category term="Radio"/>
4548.    <category term="FM"/>
4549.    <category term="Arduino"/>
4550.  </entry>
4551.  <entry>
4552.    <id>https://leap.tardate.com/Electronics101/Connectors/Audio/</id>
4553.    <link href="https://leap.tardate.com/Electronics101/Connectors/Audio/"/>
4554.    <updated>2017-10-10T15:54:25Z</updated>
4555.    <title>#309 AudioConnectors</title>
4556.    <summary>notes on miscellaneous audio connectors</summary>
4557.    <g:image_link>https://leap.tardate.com/Electronics101/Connectors/Audio/assets/Audio_build.jpg</g:image_link>
4558.    <category term="Audio"/>
4559.    <category term="Connectors"/>
4560.  </entry>
4561.  <entry>
4562.    <id>https://leap.tardate.com/playground/LED7Segment/CombinationalLogicDriver/</id>
4563.    <link href="https://leap.tardate.com/playground/LED7Segment/CombinationalLogicDriver/"/>
4564.    <updated>2017-04-23T18:59:24Z</updated>
4565.    <title>#308 7-Segment Combinational Logic</title>
4566.    <summary>- dust off some combinational logic methods and build a 8421-BCD to 7-segment LED driver with 7400 series logic</summary>
4567.    <g:image_link>https://leap.tardate.com/playground/LED7Segment/CombinationalLogicDriver/assets/CombinationalLogicDriver_build.jpg</g:image_link>
4568.    <category term="LED"/>
4569.    <category term="7-Segment"/>
4570.    <category term="CMOS/TTL"/>
4571.    <category term="Arduino"/>
4572.  </entry>
4573.  <entry>
4574.    <id>https://leap.tardate.com/BoldportClub/TheMatrix/KeypadControl/</id>
4575.    <link href="https://leap.tardate.com/BoldportClub/TheMatrix/KeypadControl/"/>
4576.    <updated>2017-04-21T13:28:00Z</updated>
4577.    <title>#307 TheMatrix/KeypadControl</title>
4578.    <summary>use a 20-button keypad to write a scrolling message on the Boldport Matrix</summary>
4579.    <g:image_link>https://leap.tardate.com/BoldportClub/TheMatrix/KeypadControl/assets/KeypadControl_build.jpg</g:image_link>
4580.    <category term="Boldport"/>
4581.    <category term="LED"/>
4582.    <category term="AS1130"/>
4583.  </entry>
4584.  <entry>
4585.    <id>https://leap.tardate.com/playground/KeyboardMatrixModule/SwitchInterrupts/</id>
4586.    <link href="https://leap.tardate.com/playground/KeyboardMatrixModule/SwitchInterrupts/"/>
4587.    <updated>2017-04-17T17:08:25Z</updated>
4588.    <title>#306 KeyboardMatrixModule/SwitchInterrupts</title>
4589.    <summary>demo interrupt-driven switch input on a simple pushbutton/LED matrix module and how to use the EnableInterrupt library</summary>
4590.    <g:image_link>https://leap.tardate.com/playground/KeyboardMatrixModule/SwitchInterrupts/assets/SwitchInterrupts_build.jpg</g:image_link>
4591.    <category term="Arduino"/>
4592.    <category term="Human Input"/>
4593.  </entry>
4594.  <entry>
4595.    <id>https://leap.tardate.com/playground/KeyboardMatrixModule/LedControl/</id>
4596.    <link href="https://leap.tardate.com/playground/KeyboardMatrixModule/LedControl/"/>
4597.    <updated>2017-04-17T17:08:25Z</updated>
4598.    <title>#305 KeyboardMatrixModule/LedControl</title>
4599.    <summary>demo controlling the LEDs on a simple pushbutton/LED matrix module</summary>
4600.    <g:image_link>https://leap.tardate.com/playground/KeyboardMatrixModule/LedControl/assets/LedControl_build.jpg</g:image_link>
4601.    <category term="Arduino"/>
4602.    <category term="LED"/>
4603.  </entry>
4604.  <entry>
4605.    <id>https://leap.tardate.com/playground/KeyboardMatrixModule/KeyMatrixInput/</id>
4606.    <link href="https://leap.tardate.com/playground/KeyboardMatrixModule/KeyMatrixInput/"/>
4607.    <updated>2017-04-17T17:08:25Z</updated>
4608.    <title>#304 KeyboardMatrixModule/KeyMatrixInput</title>
4609.    <summary>demo multiplexed key input on a simple pushbutton/LED matrix module and how to use INPUT_PULLUP</summary>
4610.    <g:image_link>https://leap.tardate.com/playground/KeyboardMatrixModule/KeyMatrixInput/assets/KeyMatrixInput_build.jpg</g:image_link>
4611.    <category term="Arduino"/>
4612.    <category term="Human Input"/>
4613.  </entry>
4614.  <entry>
4615.    <id>https://leap.tardate.com/playground/KeyboardMatrixModule/</id>
4616.    <link href="https://leap.tardate.com/playground/KeyboardMatrixModule/"/>
4617.    <updated>2017-04-17T17:08:25Z</updated>
4618.    <title>#303 KeyboardMatrixModule</title>
4619.    <summary>demo a simple pushbutton/LED matrix module</summary>
4620.    <g:image_link>https://leap.tardate.com/playground/KeyboardMatrixModule/assets/KeyboardMatrixModule_build.jpg</g:image_link>
4621.    <category term="Arduino"/>
4622.    <category term="LED"/>
4623.    <category term="Human Input"/>
4624.  </entry>
4625.  <entry>
4626.    <id>https://leap.tardate.com/BoldportClub/TheMatrix/GameOfLife/</id>
4627.    <link href="https://leap.tardate.com/BoldportClub/TheMatrix/GameOfLife/"/>
4628.    <updated>2017-04-16T15:01:55Z</updated>
4629.    <title>#302 TheMatrix/GameOfLife</title>
4630.    <summary>a simple implementation of Conway's Game of Life on the BoldportClub Matrix</summary>
4631.    <g:image_link>https://leap.tardate.com/BoldportClub/TheMatrix/GameOfLife/assets/GameOfLife_build.jpg</g:image_link>
4632.    <category term="Boldport"/>
4633.    <category term="LED"/>
4634.    <category term="AS1130"/>
4635.  </entry>
4636.  <entry>
4637.    <id>https://leap.tardate.com/playground/DHT11/Basics/</id>
4638.    <link href="https://leap.tardate.com/playground/DHT11/Basics/"/>
4639.    <updated>2017-04-11T16:45:55Z</updated>
4640.    <title>#301 DHT11 Basics</title>
4641.    <summary>test basic temperature and humidity readings with the DHT11 sensor</summary>
4642.    <g:image_link>https://leap.tardate.com/playground/DHT11/Basics/assets/Basics_build.jpg</g:image_link>
4643.    <category term="Sensors"/>
4644.    <category term="Arduino"/>
4645.  </entry>
4646.  <entry>
4647.    <id>https://leap.tardate.com/BoldportClub/TheMatrix/LedTest/</id>
4648.    <link href="https://leap.tardate.com/BoldportClub/TheMatrix/LedTest/"/>
4649.    <updated>2017-04-09T14:54:40Z</updated>
4650.    <title>#300 TheMatrix/LedTest</title>
4651.    <summary>testing The Matrix (Boldport Club project #11) with @luckyresistor's LRAS1130 library</summary>
4652.    <g:image_link>https://leap.tardate.com/BoldportClub/TheMatrix/LedTest/assets/LedTest_build.jpg</g:image_link>
4653.    <category term="Boldport"/>
4654.    <category term="LED"/>
4655.    <category term="AS1130"/>
4656.  </entry>
4657.  <entry>
4658.    <id>https://leap.tardate.com/BoldportClub/TheMatrix/</id>
4659.    <link href="https://leap.tardate.com/BoldportClub/TheMatrix/"/>
4660.    <updated>2020-03-14T16:56:38Z</updated>
4661.    <title>#299 BoldportClub/TheMatrix</title>
4662.    <summary>building The Matrix (Boldport Club project #11) is an I²C-controlled 24x5 LED matrix display, powered by an AMS AS1130 LED driver</summary>
4663.    <g:image_link>https://leap.tardate.com/BoldportClub/TheMatrix/assets/TheMatrix_build.jpg</g:image_link>
4664.    <category term="Boldport"/>
4665.    <category term="PCB Design"/>
4666.    <category term="LED"/>
4667.    <category term="AS1130"/>
4668.  </entry>
4669.  <entry>
4670.    <id>https://leap.tardate.com/Kraft/GoldenHind/</id>
4671.    <link href="https://leap.tardate.com/Kraft/GoldenHind/"/>
4672.    <updated>2017-05-17T15:04:09Z</updated>
4673.    <title>#298 GoldenHind</title>
4674.    <summary>building a mini metal model of the Golden Hind</summary>
4675.    <g:image_link>https://leap.tardate.com/Kraft/GoldenHind/assets/GoldenHind_build.jpg</g:image_link>
4676.    <category term="Craft"/>
4677.  </entry>
4678.  <entry>
4679.    <id>https://leap.tardate.com/Electronics101/CD4070/Oscillator/</id>
4680.    <link href="https://leap.tardate.com/Electronics101/CD4070/Oscillator/"/>
4681.    <updated>2017-04-08T15:05:03Z</updated>
4682.    <title>#297 CD4070 Oscillator</title>
4683.    <summary>examine a classic CD4070 oscillator design and variations</summary>
4684.    <g:image_link>https://leap.tardate.com/Electronics101/CD4070/Oscillator/assets/Oscillator_build.jpg</g:image_link>
4685.    <category term="CMOS"/>
4686.    <category term="Oscillators"/>
4687.  </entry>
4688.  <entry>
4689.    <id>https://leap.tardate.com/BoldportClub/QSOPBreakout/SolarPendulum/</id>
4690.    <link href="https://leap.tardate.com/BoldportClub/QSOPBreakout/SolarPendulum/"/>
4691.    <updated>2017-03-19T11:11:31Z</updated>
4692.    <title>#296 SolarPendulum</title>
4693.    <summary>build a solar-powered pendulum similar to the popular &quot;solar wobble/flip-flop toys&quot; on the Boldport QSOP breakout board</summary>
4694.    <g:image_link>https://leap.tardate.com/BoldportClub/QSOPBreakout/SolarPendulum/assets/SolarPendulum_build.jpg</g:image_link>
4695.    <category term="Boldport"/>
4696.    <category term="Solar"/>
4697.  </entry>
4698.  <entry>
4699.    <id>https://leap.tardate.com/Equipment/FrequencyCounterKit/</id>
4700.    <link href="https://leap.tardate.com/Equipment/FrequencyCounterKit/"/>
4701.    <updated>2017-03-11T06:30:47Z</updated>
4702.    <title>#295 FrequencyCounterKit</title>
4703.    <summary>build and test a common PIC-based frequency counter kit</summary>
4704.    <g:image_link>https://leap.tardate.com/Equipment/FrequencyCounterKit/assets/FrequencyCounterKit_build.jpg</g:image_link>
4705.    <category term="PIC"/>
4706.    <category term="Tools"/>
4707.    <category term="Test Equipment"/>
4708.    <category term="Oscillators"/>
4709.  </entry>
4710.  <entry>
4711.    <id>https://leap.tardate.com/Electronics101/CD4060/CrystalOscillator/</id>
4712.    <link href="https://leap.tardate.com/Electronics101/CD4060/CrystalOscillator/"/>
4713.    <updated>2017-03-07T23:48:34Z</updated>
4714.    <title>#294 CD4060 Crystal Oscillator</title>
4715.    <summary>exploring the behaviour of the CD4060 ripple counter driven by a crystal oscillator</summary>
4716.    <g:image_link>https://leap.tardate.com/Electronics101/CD4060/CrystalOscillator/assets/CrystalOscillator_build.jpg</g:image_link>
4717.    <category term="CMOS/TTL"/>
4718.    <category term="Oscillators"/>
4719.  </entry>
4720.  <entry>
4721.    <id>https://leap.tardate.com/Electronics101/CD4060/RCOscillator/</id>
4722.    <link href="https://leap.tardate.com/Electronics101/CD4060/RCOscillator/"/>
4723.    <updated>2017-03-07T11:41:47Z</updated>
4724.    <title>#293 CD4060 RC Oscillator</title>
4725.    <summary>exploring the behaviour of the CD4060 ripple counter driven by an RC oscillator</summary>
4726.    <g:image_link>https://leap.tardate.com/Electronics101/CD4060/RCOscillator/assets/RCOscillator_build.jpg</g:image_link>
4727.    <category term="CMOS"/>
4728.    <category term="Oscillators"/>
4729.  </entry>
4730.  <entry>
4731.    <id>https://leap.tardate.com/Audio/AudioEffectsChips/H823/</id>
4732.    <link href="https://leap.tardate.com/Audio/AudioEffectsChips/H823/"/>
4733.    <updated>2019-09-29T13:47:06Z</updated>
4734.    <title>#292 H823 Audio Effects Chip</title>
4735.    <summary>figuring out how to use the H823 &quot;Happy Birthday&quot; music chip</summary>
4736.    <g:image_link>https://leap.tardate.com/Audio/AudioEffectsChips/H823/assets/H823_build.jpg</g:image_link>
4737.    <category term="Audio"/>
4738.    <category term="Music Chips"/>
4739.  </entry>
4740.  <entry>
4741.    <id>https://leap.tardate.com/Electronics101/CD4060/MusicLightKit/</id>
4742.    <link href="https://leap.tardate.com/Electronics101/CD4060/MusicLightKit/"/>
4743.    <updated>2017-02-17T17:16:02Z</updated>
4744.    <title>#291 CD4060/MusicLightKit</title>
4745.    <summary>learning how to use the CD4060 14-Stage Ripple Carry Binary Counter by building a music/LED-effects kit</summary>
4746.    <g:image_link>https://leap.tardate.com/Electronics101/CD4060/MusicLightKit/assets/MusicLightKit_build.jpg</g:image_link>
4747.    <category term="CMOS"/>
4748.  </entry>
4749.  <entry>
4750.    <id>https://leap.tardate.com/BoldportClub/PissOff/</id>
4751.    <link href="https://leap.tardate.com/BoldportClub/PissOff/"/>
4752.    <updated>2017-02-14T21:22:32Z</updated>
4753.    <title>#290 BoldportClub/PissOff</title>
4754.    <summary>an angry barking blue-in-the-face mad proximity sensor - Boldport Club Project #9, November 2016</summary>
4755.    <g:image_link>https://leap.tardate.com/BoldportClub/PissOff/assets/PissOff_build.jpg</g:image_link>
4756.    <category term="Boldport"/>
4757.    <category term="PCB Design"/>
4758.    <category term="NXP"/>
4759.  </entry>
4760.  <entry>
4761.    <id>https://leap.tardate.com/Electronics101/VoltmeterAmmeterModule/</id>
4762.    <link href="https://leap.tardate.com/Electronics101/VoltmeterAmmeterModule/"/>
4763.    <updated>2017-01-30T05:46:17Z</updated>
4764.    <title>#289 Voltmeter/Ammeter Module</title>
4765.    <summary>test and calibrate a DC Voltmeter/Ammeter panel module</summary>
4766.    <g:image_link>https://leap.tardate.com/Electronics101/VoltmeterAmmeterModule/assets/VoltmeterAmmeterModule_build.jpg</g:image_link>
4767.    <category term="Sensors"/>
4768.  </entry>
4769.  <entry>
4770.    <id>https://leap.tardate.com/Electronics101/SwitchModePowerSupplies/BasicInvertingBuckBoostAvrControl/</id>
4771.    <link href="https://leap.tardate.com/Electronics101/SwitchModePowerSupplies/BasicInvertingBuckBoostAvrControl/"/>
4772.    <updated>2017-05-06T10:20:26Z</updated>
4773.    <title>#288 BasicInvertingBuckBoostAvrControl</title>
4774.    <summary>build and test an inverting buck-boost converter controlled by an ATtiny85</summary>
4775.    <g:image_link>https://leap.tardate.com/Electronics101/SwitchModePowerSupplies/BasicInvertingBuckBoostAvrControl/assets/BasicInvertingBuckBoostAvrControl_build.jpg</g:image_link>
4776.    <category term="Power"/>
4777.    <category term="ATtiny"/>
4778.    <category term="Arduino"/>
4779.  </entry>
4780.  <entry>
4781.    <id>https://leap.tardate.com/Electronics101/UltrasonicAlarm/</id>
4782.    <link href="https://leap.tardate.com/Electronics101/UltrasonicAlarm/"/>
4783.    <updated>2017-01-24T18:54:46Z</updated>
4784.    <title>#287 UltrasonicAlarm</title>
4785.    <summary>build an ultrasonic motion alarm with the HC-SR04 module and discrete logic</summary>
4786.    <g:image_link>https://leap.tardate.com/Electronics101/UltrasonicAlarm/assets/UltrasonicAlarm_build.jpg</g:image_link>
4787.    <category term="555 Timer"/>
4788.    <category term="Sensors"/>
4789.    <category term="CMOS/TTL"/>
4790.    <category term="HC-SR04"/>
4791.  </entry>
4792.  <entry>
4793.    <id>https://leap.tardate.com/Electronics101/SwitchPowerNFET/</id>
4794.    <link href="https://leap.tardate.com/Electronics101/SwitchPowerNFET/"/>
4795.    <updated>2017-01-17T15:29:05Z</updated>
4796.    <title>#286 SwitchPowerNFET</title>
4797.    <summary>low-side n-channel MOSFET switching of large loads with a microcontroller</summary>
4798.    <g:image_link>https://leap.tardate.com/Electronics101/SwitchPowerNFET/assets/SwitchPowerNFET_build.jpg</g:image_link>
4799.    <category term="MOSFET"/>
4800.    <category term="Arduino"/>
4801.  </entry>
4802.  <entry>
4803.    <id>https://leap.tardate.com/BoldportClub/tap/</id>
4804.    <link href="https://leap.tardate.com/BoldportClub/tap/"/>
4805.    <updated>2017-01-15T12:28:23Z</updated>
4806.    <title>#285 BoldportClub/tap</title>
4807.    <summary>Harking back to an old Boldport project, which harks back to a 1974 Elektor article .. and the main IC (7400 NAND gate) is still available!</summary>
4808.    <g:image_link>https://leap.tardate.com/BoldportClub/tap/assets/tap_build.jpg</g:image_link>
4809.    <category term="Boldport"/>
4810.    <category term="PCB Design"/>
4811.    <category term="CMOS/TTL"/>
4812.  </entry>
4813.  <entry>
4814.    <id>https://leap.tardate.com/BoldportClub/TheGent/</id>
4815.    <link href="https://leap.tardate.com/BoldportClub/TheGent/"/>
4816.    <updated>2020-03-14T16:56:38Z</updated>
4817.    <title>#284 BoldportClub/TheGent</title>
4818.    <summary>The Gent is Boldport Club Project #10 - a simple circuit on a beautiful board</summary>
4819.    <g:image_link>https://leap.tardate.com/BoldportClub/TheGent/assets/TheGent_build.jpg</g:image_link>
4820.    <category term="Boldport"/>
4821.    <category term="PCB Design"/>
4822.    <category term="Bugs"/>
4823.  </entry>
4824.  <entry>
4825.    <id>https://leap.tardate.com/Electronics101/DigitalLogic/XorWithNandGates/</id>
4826.    <link href="https://leap.tardate.com/Electronics101/DigitalLogic/XorWithNandGates/"/>
4827.    <updated>2020-03-14T16:56:38Z</updated>
4828.    <title>#283 XOR With NAND Gates</title>
4829.    <summary>construct an XOR gate with only an 74LS132 quad NAND gate, and demonstrate its behaviour with an Arduino and Processing</summary>
4830.    <g:image_link>https://leap.tardate.com/Electronics101/DigitalLogic/XorWithNandGates/assets/XorWithNandGates_build.jpg</g:image_link>
4831.    <category term="Digital Logic"/>
4832.    <category term="CMOS/TTL"/>
4833.  </entry>
4834.  <entry>
4835.    <id>https://leap.tardate.com/Equipment/FunctionGeneratorKit/</id>
4836.    <link href="https://leap.tardate.com/Equipment/FunctionGeneratorKit/"/>
4837.    <updated>2017-01-01T07:41:43Z</updated>
4838.    <title>#282 FunctionGeneratorKit</title>
4839.    <summary>build and test a function generator kit based on the XR-2206 monolithic function generator</summary>
4840.    <g:image_link>https://leap.tardate.com/Equipment/FunctionGeneratorKit/assets/FunctionGeneratorKit_build.jpg</g:image_link>
4841.    <category term="Oscillators"/>
4842.    <category term="Tools"/>
4843.    <category term="Test Equipment"/>
4844.    <category term="XR2206"/>
4845.  </entry>
4846.  <entry>
4847.    <id>https://leap.tardate.com/Radio/FM/ThreeStageTransmitter/</id>
4848.    <link href="https://leap.tardate.com/Radio/FM/ThreeStageTransmitter/"/>
4849.    <updated>2019-08-06T17:20:09Z</updated>
4850.    <title>#281 ThreeStageTransmitter</title>
4851.    <summary>an ugly-style-in-a-can build of dazaro3's 3-stage FM transmitter circuit</summary>
4852.    <g:image_link>https://leap.tardate.com/Radio/FM/ThreeStageTransmitter/assets/ThreeStageTransmitter_build.jpg</g:image_link>
4853.    <category term="Radio"/>
4854.    <category term="FM"/>
4855.  </entry>
4856.  <entry>
4857.    <id>https://leap.tardate.com/Radio/FM/BreadboardTransmitter/</id>
4858.    <link href="https://leap.tardate.com/Radio/FM/BreadboardTransmitter/"/>
4859.    <updated>2019-08-06T17:20:09Z</updated>
4860.    <title>#280 BreadboardTransmitter</title>
4861.    <summary>build a simple 3-stage FM transmitter on a breadboard from a design by dazaro3</summary>
4862.    <g:image_link>https://leap.tardate.com/Radio/FM/BreadboardTransmitter/assets/BreadboardTransmitter_build.jpg</g:image_link>
4863.    <category term="Radio"/>
4864.    <category term="FM"/>
4865.  </entry>
4866.  <entry>
4867.    <id>https://leap.tardate.com/Radio/FM/SingleStageTransmitterKit2/</id>
4868.    <link href="https://leap.tardate.com/Radio/FM/SingleStageTransmitterKit2/"/>
4869.    <updated>2019-08-06T17:20:09Z</updated>
4870.    <title>#279 Single-stage FM Transmitter Kit 2</title>
4871.    <summary>build and tweak/tune another simple single-stage FM Transmitter Kit</summary>
4872.    <g:image_link>https://leap.tardate.com/Radio/FM/SingleStageTransmitterKit2/assets/SingleStageTransmitterKit2_build.jpg</g:image_link>
4873.    <category term="Radio"/>
4874.    <category term="FM"/>
4875.    <category term="Transmitter"/>
4876.  </entry>
4877.  <entry>
4878.    <id>https://leap.tardate.com/Equipment/ComponentTesterKit/</id>
4879.    <link href="https://leap.tardate.com/Equipment/ComponentTesterKit/"/>
4880.    <updated>2016-12-07T17:02:19Z</updated>
4881.    <title>#278 ComponentTesterKit</title>
4882.    <summary>build and evaluate a popular ATMEAG328-based component tester kit</summary>
4883.    <g:image_link>https://leap.tardate.com/Equipment/ComponentTesterKit/assets/ComponentTesterKit_build.jpg</g:image_link>
4884.    <category term="Tools"/>
4885.    <category term="Test Equipment"/>
4886.    <category term="ATmega"/>
4887.  </entry>
4888.  <entry>
4889.    <id>https://leap.tardate.com/BoldportClub/Touchy/</id>
4890.    <link href="https://leap.tardate.com/BoldportClub/Touchy/"/>
4891.    <updated>2016-12-04T05:56:42Z</updated>
4892.    <title>#277 BoldportClub/Touchy</title>
4893.    <summary>Touchy is a capacitive touch input device with on-board Sleepy Bee microcontroller (Boldport Club Project #7)</summary>
4894.    <g:image_link>https://leap.tardate.com/BoldportClub/Touchy/assets/Touchy_build.jpg</g:image_link>
4895.    <category term="Boldport"/>
4896.    <category term="EFM8"/>
4897.    <category term="Sensors"/>
4898.  </entry>
4899.  <entry>
4900.    <id>https://leap.tardate.com/playground/VariableFrequencyRunwayLEDs/</id>
4901.    <link href="https://leap.tardate.com/playground/VariableFrequencyRunwayLEDs/"/>
4902.    <updated>2016-11-30T17:32:49Z</updated>
4903.    <title>#276 VariableFrequencyRunwayLEDs</title>
4904.    <summary>a PWM-controlled variable frequency LED &quot;runway lights&quot; effect using the LM331 and CD4017</summary>
4905.    <g:image_link>https://leap.tardate.com/playground/VariableFrequencyRunwayLEDs/assets/VariableFrequencyRunwayLEDs_build.jpg</g:image_link>
4906.    <category term="LED"/>
4907.    <category term="Arduino"/>
4908.  </entry>
4909.  <entry>
4910.    <id>https://leap.tardate.com/playground/ATtiny/At8MHz/</id>
4911.    <link href="https://leap.tardate.com/playground/ATtiny/At8MHz/"/>
4912.    <updated>2018-10-21T07:22:34Z</updated>
4913.    <title>#275 ATtiny at 8MHz</title>
4914.    <summary>how to run an ATtiny85 microprocessor at 8MHz using the internal clock</summary>
4915.    <g:image_link>https://leap.tardate.com/playground/ATtiny/At8MHz/assets/At8MHz_build.jpg</g:image_link>
4916.    <category term="Arduino"/>
4917.    <category term="AVR"/>
4918.  </entry>
4919.  <entry>
4920.    <id>https://leap.tardate.com/Equipment/FY3200S/</id>
4921.    <link href="https://leap.tardate.com/Equipment/FY3200S/"/>
4922.    <updated>2016-11-26T05:37:23Z</updated>
4923.    <title>#274 FY3200S</title>
4924.    <summary>testing out the Feeltech FY3200S digital function generator</summary>
4925.    <g:image_link>https://leap.tardate.com/Equipment/FY3200S/assets/FY3200S_build.jpg</g:image_link>
4926.    <category term="Tools"/>
4927.    <category term="Test Equipment"/>
4928.  </entry>
4929.  <entry>
4930.    <id>https://leap.tardate.com/Electronics101/VoltageControlledOscillator/</id>
4931.    <link href="https://leap.tardate.com/Electronics101/VoltageControlledOscillator/"/>
4932.    <updated>2016-11-25T16:03:58Z</updated>
4933.    <title>#273 VoltageControlledOscillator</title>
4934.    <summary>exploring varicap diodes (KV1471) and their use in frequency tuning of a Colpitts-style voltage-controlled oscillator</summary>
4935.    <g:image_link>https://leap.tardate.com/Electronics101/VoltageControlledOscillator/assets/VoltageControlledOscillator_build.jpg</g:image_link>
4936.    <category term="Oscillators"/>
4937.    <category term="VCO"/>
4938.    <category term="Varicap"/>
4939.  </entry>
4940.  <entry>
4941.    <id>https://leap.tardate.com/Equipment/Saike909D/</id>
4942.    <link href="https://leap.tardate.com/Equipment/Saike909D/"/>
4943.    <updated>2016-11-22T16:22:46Z</updated>
4944.    <title>#272 Saike909D</title>
4945.    <summary>unboxing and initial review of the Saike 909D 3-in-1 hot air rework station</summary>
4946.    <g:image_link>https://leap.tardate.com/Equipment/Saike909D/assets/Saike909D_build.jpg</g:image_link>
4947.    <category term="Tools"/>
4948.  </entry>
4949.  <entry>
4950.    <id>https://leap.tardate.com/BoldportClub/cordwood/tuner/</id>
4951.    <link href="https://leap.tardate.com/BoldportClub/cordwood/tuner/"/>
4952.    <updated>2016-11-20T03:36:40Z</updated>
4953.    <title>#271 BoldportClub/cordwood/tuner</title>
4954.    <summary>use the Boldport Cuttle &amp; Cordwood as a guitar tuner, with a custom input preamp</summary>
4955.    <g:image_link>https://leap.tardate.com/BoldportClub/cordwood/tuner/assets/tuner_build.jpg</g:image_link>
4956.    <category term="Boldport"/>
4957.    <category term="Cordwood"/>
4958.    <category term="Arduino"/>
4959.    <category term="Audio"/>
4960.  </entry>
4961.  <entry>
4962.    <id>https://leap.tardate.com/BoldportClub/cordwood/aanimate/</id>
4963.    <link href="https://leap.tardate.com/BoldportClub/cordwood/aanimate/"/>
4964.    <updated>2016-11-13T10:52:19Z</updated>
4965.    <title>#270 BoldportClub/cordwood/aanimate</title>
4966.    <summary>run a demo animation using aaronjasso's Cordwood library</summary>
4967.    <g:image_link>https://leap.tardate.com/BoldportClub/cordwood/aanimate/assets/aanimate_build.jpg</g:image_link>
4968.    <category term="Boldport"/>
4969.    <category term="Cordwood"/>
4970.    <category term="Arduino"/>
4971.  </entry>
4972.  <entry>
4973.    <id>https://leap.tardate.com/BoldportClub/cordwood/</id>
4974.    <link href="https://leap.tardate.com/BoldportClub/cordwood/"/>
4975.    <updated>2016-11-13T08:49:19Z</updated>
4976.    <title>#269 BoldportClub/cordwood</title>
4977.    <summary>the Cordwood Puzzle evokes an era of stuffing massive components into small spaces without a clear idea of where this is all heading! Introducing the Boldport Club Project #3</summary>
4978.    <g:image_link>https://leap.tardate.com/BoldportClub/cordwood/assets/cordwood_build.jpg</g:image_link>
4979.    <category term="Boldport"/>
4980.    <category term="PCB Design"/>
4981.    <category term="LED"/>
4982.  </entry>
4983.  <entry>
4984.    <id>https://leap.tardate.com/playground/ChainBlocks/</id>
4985.    <link href="https://leap.tardate.com/playground/ChainBlocks/"/>
4986.    <updated>2016-11-13T08:49:19Z</updated>
4987.    <title>#268 ChainBlocks</title>
4988.    <summary>testing some &quot;Chain Blocks&quot; and demonstrate an XY Plotter block (with an MCP42010 digital potentiometer) by drawing the PrexLab logo on an Oscilloscope</summary>
4989.    <g:image_link>https://leap.tardate.com/playground/ChainBlocks/assets/ChainBlocks_build.jpg</g:image_link>
4990.    <category term="Arduino"/>
4991.  </entry>
4992.  <entry>
4993.    <id>https://leap.tardate.com/BoldportClub/TheCuttle/ScopeTag/</id>
4994.    <link href="https://leap.tardate.com/BoldportClub/TheCuttle/ScopeTag/"/>
4995.    <updated>2016-11-13T08:49:19Z</updated>
4996.    <title>#267 Cuttle Scope Tag</title>
4997.    <summary>Get the Boldport Cuttle to write its name on a Digital Oscilloscope with an MCP42010 digital potentiometer</summary>
4998.    <g:image_link>https://leap.tardate.com/BoldportClub/TheCuttle/ScopeTag/assets/ScopeTag_build.jpg</g:image_link>
4999.    <category term="Boldport"/>
5000.    <category term="ATmega"/>
5001.    <category term="ATmel"/>
5002.    <category term="Arduino"/>
5003.    <category term="Digital Pot"/>
5004.    <category term="MCP42010"/>
5005.    <category term="Oscilloscope"/>
5006.  </entry>
5007.  <entry>
5008.    <id>https://leap.tardate.com/BoldportClub/TheCuttle/</id>
5009.    <link href="https://leap.tardate.com/BoldportClub/TheCuttle/"/>
5010.    <updated>2016-11-06T06:20:22Z</updated>
5011.    <title>#266 BoldportClub/TheCuttle</title>
5012.    <summary>the most beautiful Arduino-compatible board you will ever see. Another soldering kit from The Boldport Club (Project #6)</summary>
5013.    <g:image_link>https://leap.tardate.com/BoldportClub/TheCuttle/assets/TheCuttle_build.jpg</g:image_link>
5014.    <category term="Boldport"/>
5015.    <category term="PCB Design"/>
5016.    <category term="ATmega"/>
5017.    <category term="ATmel"/>
5018.    <category term="Arduino"/>
5019.  </entry>
5020.  <entry>
5021.    <id>https://leap.tardate.com/playground/XYplotter/</id>
5022.    <link href="https://leap.tardate.com/playground/XYplotter/"/>
5023.    <updated>2016-11-06T06:20:22Z</updated>
5024.    <title>#265 XYplotter</title>
5025.    <summary>draw pictures on a Digital Oscilloscope using an MCP42010 dual digital potentiometer and an Arduino. Of course, the first thing to try is the classic Christmas Tree</summary>
5026.    <g:image_link>https://leap.tardate.com/playground/XYplotter/assets/XYplotter_build.jpg</g:image_link>
5027.    <category term="Arduino"/>
5028.    <category term="Digital Pot"/>
5029.    <category term="MCP42010"/>
5030.    <category term="Oscilloscope"/>
5031.  </entry>
5032.  <entry>
5033.    <id>https://leap.tardate.com/Electronics101/DigitalPots/MCP42010/</id>
5034.    <link href="https://leap.tardate.com/Electronics101/DigitalPots/MCP42010/"/>
5035.    <updated>2016-11-05T11:32:02Z</updated>
5036.    <title>#264 DigitalPots/MCP42010</title>
5037.    <summary>control the MCP42010 dual 10kΩ digital potentiometer with an Arduino and hardware SPI</summary>
5038.    <g:image_link>https://leap.tardate.com/Electronics101/DigitalPots/MCP42010/assets/MCP42010_build.jpg</g:image_link>
5039.    <category term="Arduino"/>
5040.    <category term="Digital Pot"/>
5041.    <category term="MCP42010"/>
5042.  </entry>
5043.  <entry>
5044.    <id>https://leap.tardate.com/BoldportClub/ligemdio/</id>
5045.    <link href="https://leap.tardate.com/BoldportClub/ligemdio/"/>
5046.    <updated>2016-11-13T08:49:19Z</updated>
5047.    <title>#263 BoldportClub/ligemdio</title>
5048.    <summary>an LED tester kit featureing a classic BJT constant current source. From The Boldport Club (Project #8)</summary>
5049.    <g:image_link>https://leap.tardate.com/BoldportClub/ligemdio/assets/ligemdio_build.jpg</g:image_link>
5050.    <category term="Boldport"/>
5051.    <category term="PCB Design"/>
5052.    <category term="LED"/>
5053.    <category term="BJT"/>
5054.  </entry>
5055.  <entry>
5056.    <id>https://leap.tardate.com/Electronics101/GuitarEffects/BazzFuss/</id>
5057.    <link href="https://leap.tardate.com/Electronics101/GuitarEffects/BazzFuss/"/>
5058.    <updated>2016-10-24T16:44:07Z</updated>
5059.    <title>#262 BazzFuss</title>
5060.    <summary>the Bazz Fuss &quot;chocolate noisette&quot; - a super-minimalist overdrive/distortion/fuzz effect circuit</summary>
5061.    <g:image_link>https://leap.tardate.com/Electronics101/GuitarEffects/BazzFuss/assets/BazzFuss_build.jpg</g:image_link>
5062.    <category term="Guitar Effects"/>
5063.    <category term="Audio"/>
5064.  </entry>
5065.  <entry>
5066.    <id>https://leap.tardate.com/Electronics101/DigitalPots/MCP4017/</id>
5067.    <link href="https://leap.tardate.com/Electronics101/DigitalPots/MCP4017/"/>
5068.    <updated>2016-10-23T14:35:20Z</updated>
5069.    <title>#261 DigitalPots/MCP4017</title>
5070.    <summary>control the MCP4017 single 7-Bit I²C digital potentiometer with an Arduino</summary>
5071.    <g:image_link>https://leap.tardate.com/Electronics101/DigitalPots/MCP4017/assets/MCP4017_build.jpg</g:image_link>
5072.    <category term="Arduino"/>
5073.    <category term="Digital Pot"/>
5074.    <category term="MCP4017"/>
5075.  </entry>
5076.  <entry>
5077.    <id>https://leap.tardate.com/Equipment/SaleaeLogic/</id>
5078.    <link href="https://leap.tardate.com/Equipment/SaleaeLogic/"/>
5079.    <updated>2016-10-22T15:12:00Z</updated>
5080.    <title>#260 SaleaeLogic</title>
5081.    <summary>checking out a second-hand Saleae Logic (24 MS/s, 8 channel USB logic analyzer - that works on a Mac!!)</summary>
5082.    <g:image_link>https://leap.tardate.com/Equipment/SaleaeLogic/assets/SaleaeLogic_build.jpg</g:image_link>
5083.    <category term="Tools"/>
5084.    <category term="Test Equipment"/>
5085.    <category term="Logic Analyzer"/>
5086.  </entry>
5087.  <entry>
5088.    <id>https://leap.tardate.com/Electronics101/DigitalPots/M62429/</id>
5089.    <link href="https://leap.tardate.com/Electronics101/DigitalPots/M62429/"/>
5090.    <updated>2016-10-22T15:12:00Z</updated>
5091.    <title>#259 DigitalPots/M62429</title>
5092.    <summary>control the M62429 dual channel volume control with an Arduino</summary>
5093.    <g:image_link>https://leap.tardate.com/Electronics101/DigitalPots/M62429/assets/M62429_build.jpg</g:image_link>
5094.    <category term="Arduino"/>
5095.    <category term="Digital Pot"/>
5096.    <category term="M62429"/>
5097.  </entry>
5098.  <entry>
5099.    <id>https://leap.tardate.com/Electronics101/ClapSwitchKit2/</id>
5100.    <link href="https://leap.tardate.com/Electronics101/ClapSwitchKit2/"/>
5101.    <updated>2016-10-20T14:57:43Z</updated>
5102.    <title>#258 ClapSwitchKit2</title>
5103.    <summary>practice some Boldport-style soldering on yet-another clap switch kit</summary>
5104.    <g:image_link>https://leap.tardate.com/Electronics101/ClapSwitchKit2/assets/ClapSwitchKit2_build.jpg</g:image_link>
5105.    <category term="Oscillators"/>
5106.    <category term="BJT"/>
5107.    <category term="Digital Logic"/>
5108.  </entry>
5109.  <entry>
5110.    <id>https://leap.tardate.com/BoldportClub/Emergency/</id>
5111.    <link href="https://leap.tardate.com/BoldportClub/Emergency/"/>
5112.    <updated>2016-10-19T13:37:59Z</updated>
5113.    <title>#257 BoldportClub/Emergency</title>
5114.    <summary>pimp the Boldport Club Emergency kit (Project #2) .. now a LED blinky with 3 passives and a transistor (Esaki Effect)</summary>
5115.    <g:image_link>https://leap.tardate.com/BoldportClub/Emergency/assets/Emergency_build.jpg</g:image_link>
5116.    <category term="Boldport"/>
5117.    <category term="PCB Design"/>
5118.    <category term="Oscillators"/>
5119.  </entry>
5120.  <entry>
5121.    <id>https://leap.tardate.com/BoldportClub/Pease/</id>
5122.    <link href="https://leap.tardate.com/BoldportClub/Pease/"/>
5123.    <updated>2016-10-15T05:40:03Z</updated>
5124.    <title>#256 BoldportClub/Pease</title>
5125.    <summary>a Bob Pease tribute, LM331 voltage-to-frequency kit from The Boldport Club (Project #1)</summary>
5126.    <g:image_link>https://leap.tardate.com/BoldportClub/Pease/assets/Pease_build.jpg</g:image_link>
5127.    <category term="Boldport"/>
5128.    <category term="PCB Design"/>
5129.    <category term="LM331"/>
5130.  </entry>
5131.  <entry>
5132.    <id>https://leap.tardate.com/playground/AvrHardwarePWM/ATtiny/</id>
5133.    <link href="https://leap.tardate.com/playground/AvrHardwarePWM/ATtiny/"/>
5134.    <updated>2016-10-14T12:48:34Z</updated>
5135.    <title>#255 AvrHardwarePWM/ATtiny</title>
5136.    <summary>all about hardware PWM and demonstrating the modes with the ATtiny85</summary>
5137.    <g:image_link>https://leap.tardate.com/playground/AvrHardwarePWM/ATtiny/assets/ATtiny_build.jpg</g:image_link>
5138.    <category term="ATtiny"/>
5139.    <category term="ATmel"/>
5140.    <category term="Arduino"/>
5141.    <category term="PWM"/>
5142.  </entry>
5143.  <entry>
5144.    <id>https://leap.tardate.com/playground/AvrHardwarePWM/</id>
5145.    <link href="https://leap.tardate.com/playground/AvrHardwarePWM/"/>
5146.    <updated>2016-10-11T17:06:19Z</updated>
5147.    <title>#254 AvrHardwarePWM</title>
5148.    <summary>all about hardware PWM and demonstrating the modes with the Arduino UNO/ATmega328</summary>
5149.    <g:image_link>https://leap.tardate.com/playground/AvrHardwarePWM/assets/AvrHardwarePWM_build.jpg</g:image_link>
5150.    <category term="ATmega"/>
5151.    <category term="ATmel"/>
5152.    <category term="Arduino"/>
5153.    <category term="PWM"/>
5154.  </entry>
5155.  <entry>
5156.    <id>https://leap.tardate.com/playground/ATtiny/ProgrammingShield/</id>
5157.    <link href="https://leap.tardate.com/playground/ATtiny/ProgrammingShield/"/>
5158.    <updated>2018-10-21T07:22:34Z</updated>
5159.    <title>#253 ATtiny Programming Shield</title>
5160.    <summary>a custom ATtiny programming shield for Arduino ISP</summary>
5161.    <g:image_link>https://leap.tardate.com/playground/ATtiny/ProgrammingShield/assets/ProgrammingShield_build.jpg</g:image_link>
5162.    <category term="Arduino"/>
5163.    <category term="AVR"/>
5164.  </entry>
5165.  <entry>
5166.    <id>https://leap.tardate.com/Electronics101/555Timer/MessageWaiting/</id>
5167.    <link href="https://leap.tardate.com/Electronics101/555Timer/MessageWaiting/"/>
5168.    <updated>2016-10-05T16:23:01Z</updated>
5169.    <title>#252 MessageWaiting</title>
5170.    <summary>two-LED flasher with a 555 and minimal components - turned into a &quot;message waiting&quot; indicator with some free-wired SMD construction</summary>
5171.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/MessageWaiting/assets/MessageWaiting_build.jpg</g:image_link>
5172.    <category term="LED"/>
5173.    <category term="555 Timer"/>
5174.  </entry>
5175.  <entry>
5176.    <id>https://leap.tardate.com/BoldportClub/TheLady/</id>
5177.    <link href="https://leap.tardate.com/BoldportClub/TheLady/"/>
5178.    <updated>2016-12-15T17:19:21Z</updated>
5179.    <title>#251 BoldportClub/TheLady</title>
5180.    <summary>a ladybird soldering and display kit from The Boldport Club (Project #4)</summary>
5181.    <g:image_link>https://leap.tardate.com/BoldportClub/TheLady/assets/TheLady_build.jpg</g:image_link>
5182.    <category term="Boldport"/>
5183.    <category term="PCB Design"/>
5184.    <category term="Bugs"/>
5185.  </entry>
5186.  <entry>
5187.    <id>https://leap.tardate.com/playground/pedalShieldUno/AudioDSP/</id>
5188.    <link href="https://leap.tardate.com/playground/pedalShieldUno/AudioDSP/"/>
5189.    <updated>2016-10-02T14:57:18Z</updated>
5190.    <title>#250 pedalShieldUno/AudioDSP</title>
5191.    <summary>test and develop the AudioDSP library for programming the pedalSHIELD Uno</summary>
5192.    <g:image_link>https://leap.tardate.com/playground/pedalShieldUno/AudioDSP/assets/AudioDSP_build.jpg</g:image_link>
5193.    <category term="DSP"/>
5194.    <category term="Guitar"/>
5195.    <category term="Arduino"/>
5196.  </entry>
5197.  <entry>
5198.    <id>https://leap.tardate.com/Audio/AudioAmps/GuitarPracticeAmp/</id>
5199.    <link href="https://leap.tardate.com/Audio/AudioAmps/GuitarPracticeAmp/"/>
5200.    <updated>2020-06-06T18:36:42Z</updated>
5201.    <title>#249 TDA2050 Guitar Practice Amp</title>
5202.    <summary>single-channel 10W guitar practice amplifier based on the TDA2050</summary>
5203.    <g:image_link>https://leap.tardate.com/Audio/AudioAmps/GuitarPracticeAmp/assets/GuitarPracticeAmp_build.jpg</g:image_link>
5204.    <category term="OpAmp"/>
5205.    <category term="Audio"/>
5206.  </entry>
5207.  <entry>
5208.    <id>https://leap.tardate.com/Electronics101/Oscillators/PierceGateOscillator/</id>
5209.    <link href="https://leap.tardate.com/Electronics101/Oscillators/PierceGateOscillator/"/>
5210.    <updated>2019-03-26T11:22:03Z</updated>
5211.    <title>#248 PierceGateOscillator</title>
5212.    <summary>build and test a 4.27 MHz Pierce Gate Oscillator circuit using a 74LS14 schmitt inverter</summary>
5213.    <g:image_link>https://leap.tardate.com/Electronics101/Oscillators/PierceGateOscillator/assets/PierceGateOscillator_build.jpg</g:image_link>
5214.    <category term="Oscillators"/>
5215.    <category term="Crystal"/>
5216.  </entry>
5217.  <entry>
5218.    <id>https://leap.tardate.com/playground/pedalShieldUno/</id>
5219.    <link href="https://leap.tardate.com/playground/pedalShieldUno/"/>
5220.    <updated>2016-09-23T10:37:24Z</updated>
5221.    <title>#247 pedalShieldUno</title>
5222.    <summary>build and test a genuine pedalSHIELD UNO Arduino-based guitar effects pedal</summary>
5223.    <g:image_link>https://leap.tardate.com/playground/pedalShieldUno/assets/pedalShieldUno_build.jpg</g:image_link>
5224.    <category term="DSP"/>
5225.    <category term="Guitar"/>
5226.    <category term="Arduino"/>
5227.  </entry>
5228.  <entry>
5229.    <id>https://leap.tardate.com/Electronics101/Oscillators/CMOSOscillators/</id>
5230.    <link href="https://leap.tardate.com/Electronics101/Oscillators/CMOSOscillators/"/>
5231.    <updated>2019-04-20T06:52:07Z</updated>
5232.    <title>#246 CMOS Oscillators</title>
5233.    <summary>testing 4-pin CMOS oscillators - NCH060C, MCO-1510A</summary>
5234.    <g:image_link>https://leap.tardate.com/Electronics101/Oscillators/CMOSOscillators/assets/CMOSOscillators_build.jpg</g:image_link>
5235.    <category term="CMOS"/>
5236.    <category term="Oscillators"/>
5237.  </entry>
5238.  <entry>
5239.    <id>https://leap.tardate.com/Electronics101/GeneralCurveTracer/</id>
5240.    <link href="https://leap.tardate.com/Electronics101/GeneralCurveTracer/"/>
5241.    <updated>2016-09-20T11:26:07Z</updated>
5242.    <title>#245 GeneralCurveTracer</title>
5243.    <summary>test a DC-powered general curve tracer circuit</summary>
5244.    <g:image_link>https://leap.tardate.com/Electronics101/GeneralCurveTracer/assets/GeneralCurveTracer_build.jpg</g:image_link>
5245.    <category term="BJT"/>
5246.    <category term="Oscillators"/>
5247.  </entry>
5248.  <entry>
5249.    <id>https://leap.tardate.com/Electronics101/Switches/DPDT/</id>
5250.    <link href="https://leap.tardate.com/Electronics101/Switches/DPDT/"/>
5251.    <updated>2023-05-02T14:10:52Z</updated>
5252.    <title>#244 Switches/DPDT</title>
5253.    <summary>all about double-pole, double-thow (DPDT) toggle switches</summary>
5254.    <g:image_link>https://leap.tardate.com/Electronics101/Switches/DPDT/assets/DPDT_build.jpg</g:image_link>
5255.    <category term="Switches"/>
5256.  </entry>
5257.  <entry>
5258.    <id>https://leap.tardate.com/Electronics101/Switches/</id>
5259.    <link href="https://leap.tardate.com/Electronics101/Switches/"/>
5260.    <updated>2016-09-19T23:54:46Z</updated>
5261.    <title>#243 Switches</title>
5262.    <summary>Notes on miscellaneous mechanical switches used in electrical circuits</summary>
5263.    <g:image_link>https://leap.tardate.com/Electronics101/Switches/assets/Switches_build.jpg</g:image_link>
5264.    <category term="Switches"/>
5265.  </entry>
5266.  <entry>
5267.    <id>https://leap.tardate.com/Electronics101/Oscillators/PierceOscillator/</id>
5268.    <link href="https://leap.tardate.com/Electronics101/Oscillators/PierceOscillator/"/>
5269.    <updated>2019-03-26T11:22:03Z</updated>
5270.    <title>#242 PierceOscillator</title>
5271.    <summary>test a Pierce Oscillator made with a minimum of components</summary>
5272.    <g:image_link>https://leap.tardate.com/Electronics101/Oscillators/PierceOscillator/assets/PierceOscillator_build.jpg</g:image_link>
5273.    <category term="Oscillators"/>
5274.    <category term="Crystal"/>
5275.  </entry>
5276.  <entry>
5277.    <id>https://leap.tardate.com/Audio/AudioAmps/GeneralPurpose358/</id>
5278.    <link href="https://leap.tardate.com/Audio/AudioAmps/GeneralPurpose358/"/>
5279.    <updated>2020-06-06T18:36:42Z</updated>
5280.    <title>#241 General Purpose 358</title>
5281.    <summary>test a general-purpose LM358 amplifier circuit</summary>
5282.    <g:image_link>https://leap.tardate.com/Audio/AudioAmps/GeneralPurpose358/assets/GeneralPurpose358_build.jpg</g:image_link>
5283.    <category term="OpAmp"/>
5284.    <category term="Audio"/>
5285.  </entry>
5286.  <entry>
5287.    <id>https://leap.tardate.com/playground/DigitalInputWithAnalogPins/</id>
5288.    <link href="https://leap.tardate.com/playground/DigitalInputWithAnalogPins/"/>
5289.    <updated>2016-09-02T11:10:00Z</updated>
5290.    <title>#240 DigitalInputWithAnalogPins</title>
5291.    <summary>demonstrate how analog pins can also be used as a digital GPIO</summary>
5292.    <g:image_link>https://leap.tardate.com/playground/DigitalInputWithAnalogPins/assets/DigitalInputWithAnalogPins_build.jpg</g:image_link>
5293.    <category term="Arduino"/>
5294.  </entry>
5295.  <entry>
5296.    <id>https://leap.tardate.com/playground/AudioDSP/SuperCrunch/</id>
5297.    <link href="https://leap.tardate.com/playground/AudioDSP/SuperCrunch/"/>
5298.    <updated>2016-08-28T13:01:11Z</updated>
5299.    <title>#239 AudioDSP/SuperCrunch</title>
5300.    <summary>arduino DSP crunchy symmetrical Schetzen distortion effect based on the pedalSHIELD by electrosmash</summary>
5301.    <g:image_link>https://leap.tardate.com/playground/AudioDSP/SuperCrunch/assets/SuperCrunch_build.jpg</g:image_link>
5302.    <category term="Audio"/>
5303.    <category term="Arduino"/>
5304.    <category term="DSP"/>
5305.    <category term="OpAmp"/>
5306.  </entry>
5307.  <entry>
5308.    <id>https://leap.tardate.com/playground/AudioDSP/Crunch/</id>
5309.    <link href="https://leap.tardate.com/playground/AudioDSP/Crunch/"/>
5310.    <updated>2016-08-28T13:01:11Z</updated>
5311.    <title>#238 AudioDSP/Crunch</title>
5312.    <summary>arduino DSP crunchy distortion effect based on the pedalSHIELD by electrosmash</summary>
5313.    <g:image_link>https://leap.tardate.com/playground/AudioDSP/Crunch/assets/Crunch_build.jpg</g:image_link>
5314.    <category term="Audio"/>
5315.    <category term="Arduino"/>
5316.    <category term="DSP"/>
5317.    <category term="OpAmp"/>
5318.  </entry>
5319.  <entry>
5320.    <id>https://leap.tardate.com/playground/AudioDSP/Distortion/</id>
5321.    <link href="https://leap.tardate.com/playground/AudioDSP/Distortion/"/>
5322.    <updated>2016-08-28T13:01:11Z</updated>
5323.    <title>#237 AudioDSP/Distortion</title>
5324.    <summary>arduino DSP simple distortion effect based on the pedalSHIELD by electrosmash</summary>
5325.    <g:image_link>https://leap.tardate.com/playground/AudioDSP/Distortion/assets/Distortion_build.jpg</g:image_link>
5326.    <category term="Audio"/>
5327.    <category term="Arduino"/>
5328.    <category term="DSP"/>
5329.    <category term="OpAmp"/>
5330.  </entry>
5331.  <entry>
5332.    <id>https://leap.tardate.com/playground/AudioDSP/Boost/</id>
5333.    <link href="https://leap.tardate.com/playground/AudioDSP/Boost/"/>
5334.    <updated>2016-08-28T13:01:11Z</updated>
5335.    <title>#236 AudioDSP/Boost</title>
5336.    <summary>arduino DSP boost effect based on the pedalSHIELD by electrosmash</summary>
5337.    <g:image_link>https://leap.tardate.com/playground/AudioDSP/Boost/assets/Boost_build.jpg</g:image_link>
5338.    <category term="Audio"/>
5339.    <category term="Arduino"/>
5340.    <category term="DSP"/>
5341.    <category term="OpAmp"/>
5342.  </entry>
5343.  <entry>
5344.    <id>https://leap.tardate.com/playground/AudioDSP/</id>
5345.    <link href="https://leap.tardate.com/playground/AudioDSP/"/>
5346.    <updated>2016-08-21T06:09:12Z</updated>
5347.    <title>#235 AudioDSP</title>
5348.    <summary>build and test an arduino DSP circuit based on the pedalSHIELD by electrosmash</summary>
5349.    <g:image_link>https://leap.tardate.com/playground/AudioDSP/assets/AudioDSP_build.jpg</g:image_link>
5350.    <category term="Audio"/>
5351.    <category term="Arduino"/>
5352.    <category term="DSP"/>
5353.    <category term="OpAmp"/>
5354.  </entry>
5355.  <entry>
5356.    <id>https://leap.tardate.com/Electronics101/Oscillators/CMOSInverterOscillator/</id>
5357.    <link href="https://leap.tardate.com/Electronics101/Oscillators/CMOSInverterOscillator/"/>
5358.    <updated>2023-05-02T14:10:52Z</updated>
5359.    <title>#234 CMOS Inverter Oscillator</title>
5360.    <summary>use a CD4096 to generate an oscillating waveform and plot the results</summary>
5361.    <g:image_link>https://leap.tardate.com/Electronics101/Oscillators/CMOSInverterOscillator/assets/CMOSInverterOscillator_build.jpg</g:image_link>
5362.    <category term="CMOS"/>
5363.    <category term="Oscillators"/>
5364.  </entry>
5365.  <entry>
5366.    <id>https://leap.tardate.com/Electronics101/PWM/GeneralPurposeHighSideController/</id>
5367.    <link href="https://leap.tardate.com/Electronics101/PWM/GeneralPurposeHighSideController/"/>
5368.    <updated>2016-08-13T07:39:10Z</updated>
5369.    <title>#233 PWM/GeneralPurposeHighSideController</title>
5370.    <summary>build and test a general-purpose high-side PWM controller</summary>
5371.    <g:image_link>https://leap.tardate.com/Electronics101/PWM/GeneralPurposeHighSideController/assets/GeneralPurposeHighSideController_build.jpg</g:image_link>
5372.    <category term="PWM"/>
5373.    <category term="555 Timer"/>
5374.    <category term="Oscillators"/>
5375.    <category term="Power"/>
5376.  </entry>
5377.  <entry>
5378.    <id>https://leap.tardate.com/Electronics101/LED/Dimmer/555PWM/</id>
5379.    <link href="https://leap.tardate.com/Electronics101/LED/Dimmer/555PWM/"/>
5380.    <updated>2024-04-10T03:27:55Z</updated>
5381.    <title>#232 555 PWM LED Dimmer</title>
5382.    <summary>test a PWM LED dimmer circuit using a 555 timer</summary>
5383.    <g:image_link>https://leap.tardate.com/Electronics101/LED/Dimmer/555PWM/assets/555PWM_build.jpg</g:image_link>
5384.    <category term="LED"/>
5385.    <category term="Power"/>
5386.    <category term="555 Timer"/>
5387.  </entry>
5388.  <entry>
5389.    <id>https://leap.tardate.com/Electronics101/LED/Dimmer/CurrentRegulator/</id>
5390.    <link href="https://leap.tardate.com/Electronics101/LED/Dimmer/CurrentRegulator/"/>
5391.    <updated>2024-04-10T03:27:55Z</updated>
5392.    <title>#231 LED Current Regulator</title>
5393.    <summary>test a current-regulator style LED dimmer circuit</summary>
5394.    <g:image_link>https://leap.tardate.com/Electronics101/LED/Dimmer/CurrentRegulator/assets/CurrentRegulator_build.jpg</g:image_link>
5395.    <category term="LED"/>
5396.    <category term="Power"/>
5397.  </entry>
5398.  <entry>
5399.    <id>https://leap.tardate.com/Electronics101/MinimalLCOscillator/</id>
5400.    <link href="https://leap.tardate.com/Electronics101/MinimalLCOscillator/"/>
5401.    <updated>2016-08-08T10:58:45Z</updated>
5402.    <title>#230 MinimalLCOscillator</title>
5403.    <summary>test an LC oscillator of just 5 components</summary>
5404.    <g:image_link>https://leap.tardate.com/Electronics101/MinimalLCOscillator/assets/MinimalLCOscillator_build.jpg</g:image_link>
5405.    <category term="LC"/>
5406.    <category term="Oscillators"/>
5407.  </entry>
5408.  <entry>
5409.    <id>https://leap.tardate.com/Electronics101/555Timer/Dice/</id>
5410.    <link href="https://leap.tardate.com/Electronics101/555Timer/Dice/"/>
5411.    <updated>2016-08-08T10:58:45Z</updated>
5412.    <title>#229 Dice</title>
5413.    <summary>a 555/4017-based dice circuit with slow-down and auto power-off</summary>
5414.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/Dice/assets/Dice_build.jpg</g:image_link>
5415.    <category term="555 Timer"/>
5416.    <category term="CMOS"/>
5417.  </entry>
5418.  <entry>
5419.    <id>https://leap.tardate.com/Electronics101/TransistorCurveTracer/</id>
5420.    <link href="https://leap.tardate.com/Electronics101/TransistorCurveTracer/"/>
5421.    <updated>2016-07-24T03:28:05Z</updated>
5422.    <title>#228 TransistorCurveTracer</title>
5423.    <summary>simple NPN transistor curve tracer using a Stairstep generator circuit</summary>
5424.    <g:image_link>https://leap.tardate.com/Electronics101/TransistorCurveTracer/assets/TransistorCurveTracer_build.jpg</g:image_link>
5425.    <category term="OpAmp"/>
5426.    <category term="555 Timer"/>
5427.    <category term="Oscillators"/>
5428.  </entry>
5429.  <entry>
5430.    <id>https://leap.tardate.com/Electronics101/555Timer/KnightRider/</id>
5431.    <link href="https://leap.tardate.com/Electronics101/555Timer/KnightRider/"/>
5432.    <updated>2016-07-11T14:13:48Z</updated>
5433.    <title>#227 Knight Rider</title>
5434.    <summary>the familiar Knight Rider LED circuit using a 555 and 4017</summary>
5435.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/KnightRider/assets/KnightRider_build.jpg</g:image_link>
5436.    <category term="555 Timer"/>
5437.    <category term="CMOS"/>
5438.    <category term="LED"/>
5439.  </entry>
5440.  <entry>
5441.    <id>https://leap.tardate.com/Electronics101/MusicBoxKit/</id>
5442.    <link href="https://leap.tardate.com/Electronics101/MusicBoxKit/"/>
5443.    <updated>2016-07-03T06:44:37Z</updated>
5444.    <title>#226 MusicBoxKit</title>
5445.    <summary>build and test a Music Box kit, and run a demonstration under Arduino control</summary>
5446.    <g:image_link>https://leap.tardate.com/Electronics101/MusicBoxKit/assets/MusicBoxKit_build.jpg</g:image_link>
5447.    <category term="Music"/>
5448.    <category term="Arduino"/>
5449.  </entry>
5450.  <entry>
5451.    <id>https://leap.tardate.com/Kinetics/FQ777-954/TearDown/</id>
5452.    <link href="https://leap.tardate.com/Kinetics/FQ777-954/TearDown/"/>
5453.    <updated>2016-06-29T13:43:20Z</updated>
5454.    <title>#225 FQ777-954/TearDown</title>
5455.    <summary>teardown an FQ777-954 nano drone and figure out as much of the technical design as possible</summary>
5456.    <g:image_link>https://leap.tardate.com/Kinetics/FQ777-954/TearDown/assets/TearDown_build.jpg</g:image_link>
5457.    <category term="Drones"/>
5458.    <category term="Radio"/>
5459.  </entry>
5460.  <entry>
5461.    <id>https://leap.tardate.com/Electronics101/LED/LEDStrobeKit/</id>
5462.    <link href="https://leap.tardate.com/Electronics101/LED/LEDStrobeKit/"/>
5463.    <updated>2024-04-10T03:27:55Z</updated>
5464.    <title>#224 LED Strobe Kit</title>
5465.    <summary>build and analyse a common LED strobe kit</summary>
5466.    <g:image_link>https://leap.tardate.com/Electronics101/LED/LEDStrobeKit/assets/LEDStrobeKit_build.jpg</g:image_link>
5467.    <category term="LED"/>
5468.    <category term="555 Timer"/>
5469.    <category term="CMOS"/>
5470.  </entry>
5471.  <entry>
5472.    <id>https://leap.tardate.com/FritzingParts/</id>
5473.    <link href="https://leap.tardate.com/FritzingParts/"/>
5474.    <updated>2016-06-23T13:26:23Z</updated>
5475.    <title>#223 Fritzing Parts</title>
5476.    <summary>my collection of custom Fritzing Parts</summary>
5477.    <g:image_link>https://leap.tardate.com/FritzingParts/assets/FritzingParts_build.jpg</g:image_link>
5478.    <category term="EDA"/>
5479.  </entry>
5480.  <entry>
5481.    <id>https://leap.tardate.com/Electronics101/StairStepGenerator/</id>
5482.    <link href="https://leap.tardate.com/Electronics101/StairStepGenerator/"/>
5483.    <updated>2016-06-16T14:29:03Z</updated>
5484.    <title>#222 StairStepGenerator</title>
5485.    <summary>generate a stair-step waveform with analog components</summary>
5486.    <g:image_link>https://leap.tardate.com/Electronics101/StairStepGenerator/assets/StairStepGenerator_build.jpg</g:image_link>
5487.    <category term="OpAmp"/>
5488.    <category term="555 Timer"/>
5489.    <category term="Oscillators"/>
5490.  </entry>
5491.  <entry>
5492.    <id>https://leap.tardate.com/Electronics101/ResistorTransistorLogic/XOR/</id>
5493.    <link href="https://leap.tardate.com/Electronics101/ResistorTransistorLogic/XOR/"/>
5494.    <updated>2016-06-09T16:47:20Z</updated>
5495.    <title>#221 XOR Gate with Resistor-Transistor Logic</title>
5496.    <summary>test the basic resistor-transistor logic XOR gate/XOR</summary>
5497.    <g:image_link>https://leap.tardate.com/Electronics101/ResistorTransistorLogic/XOR/assets/XOR_build.jpg</g:image_link>
5498.    <category term="BJT"/>
5499.    <category term="RTL"/>
5500.    <category term="Digital Logic"/>
5501.  </entry>
5502.  <entry>
5503.    <id>https://leap.tardate.com/playground/GccToolchain/</id>
5504.    <link href="https://leap.tardate.com/playground/GccToolchain/"/>
5505.    <updated>2016-06-23T13:26:23Z</updated>
5506.    <title>#220 AVR GCC Toolchain</title>
5507.    <summary>programming an Arduino with C and a command line</summary>
5508.    <g:image_link>https://leap.tardate.com/playground/GccToolchain/assets/GccToolchain_build.jpg</g:image_link>
5509.    <category term="avr-gcc"/>
5510.    <category term="avrdude"/>
5511.  </entry>
5512.  <entry>
5513.    <id>https://leap.tardate.com/Electronics101/DS18S20/OneWireReading/</id>
5514.    <link href="https://leap.tardate.com/Electronics101/DS18S20/OneWireReading/"/>
5515.    <updated>2021-03-12T15:12:34Z</updated>
5516.    <title>#219 DS18S20 1-Wire Reading</title>
5517.    <summary>basic interrogation of a DS18S20 using 1-wire protocol</summary>
5518.    <g:image_link>https://leap.tardate.com/Electronics101/DS18S20/OneWireReading/assets/OneWireReading_build.jpg</g:image_link>
5519.    <category term="Sensors"/>
5520.    <category term="Arduino"/>
5521.  </entry>
5522.  <entry>
5523.    <id>https://leap.tardate.com/playground/MPU6050/AccelGyroTest/</id>
5524.    <link href="https://leap.tardate.com/playground/MPU6050/AccelGyroTest/"/>
5525.    <updated>2016-06-05T15:18:46Z</updated>
5526.    <title>#218 MPU6050/AccelGyroTest</title>
5527.    <summary>first test of an Invensense MPU-6050 3-Axes Accelerometer Gyroscope Module</summary>
5528.    <g:image_link>https://leap.tardate.com/playground/MPU6050/AccelGyroTest/assets/AccelGyroTest_build.jpg</g:image_link>
5529.    <category term="Sensors"/>
5530.    <category term="MPU-6050"/>
5531.    <category term="Arduino"/>
5532.  </entry>
5533.  <entry>
5534.    <id>https://leap.tardate.com/Electronics101/SwitchModePowerSupplies/BasicBuckAvrControl/</id>
5535.    <link href="https://leap.tardate.com/Electronics101/SwitchModePowerSupplies/BasicBuckAvrControl/"/>
5536.    <updated>2017-05-06T10:20:26Z</updated>
5537.    <title>#217 BasicBuckAvrControl</title>
5538.    <summary>a simple buck converter circuit from first principles</summary>
5539.    <g:image_link>https://leap.tardate.com/Electronics101/SwitchModePowerSupplies/BasicBuckAvrControl/assets/BasicBuckAvrControl_build.jpg</g:image_link>
5540.    <category term="Power"/>
5541.    <category term="Arduino"/>
5542.  </entry>
5543.  <entry>
5544.    <id>https://leap.tardate.com/OSHChip/LEDx16Module/</id>
5545.    <link href="https://leap.tardate.com/OSHChip/LEDx16Module/"/>
5546.    <updated>2016-05-22T18:28:31Z</updated>
5547.    <title>#216 OSHChip/LEDx16Module</title>
5548.    <summary>driving an SPI LED module with the OSHChip</summary>
5549.    <g:image_link>https://leap.tardate.com/OSHChip/LEDx16Module/assets/LEDx16Module_build.jpg</g:image_link>
5550.    <category term="OSHChip"/>
5551.    <category term="SPI"/>
5552.  </entry>
5553.  <entry>
5554.    <id>https://leap.tardate.com/OSHChip/YottaToolchain/</id>
5555.    <link href="https://leap.tardate.com/OSHChip/YottaToolchain/"/>
5556.    <updated>2020-03-14T16:56:38Z</updated>
5557.    <title>#215 OSHChip/YottaToolchain</title>
5558.    <summary>build a simple program using the Official Yotta target for OSHChip and gcc on MacOSX</summary>
5559.    <g:image_link>https://leap.tardate.com/OSHChip/YottaToolchain/assets/YottaToolchain_build.jpg</g:image_link>
5560.    <category term="ARM"/>
5561.    <category term="gcc"/>
5562.    <category term="yotta"/>
5563.    <category term="OSHChip"/>
5564.  </entry>
5565.  <entry>
5566.    <id>https://leap.tardate.com/OSHChip/GccToolchain/</id>
5567.    <link href="https://leap.tardate.com/OSHChip/GccToolchain/"/>
5568.    <updated>2016-05-17T15:55:03Z</updated>
5569.    <title>#214 OSHChip/GccToolchain</title>
5570.    <summary>can I build a program for the OSHChip using the gcc toolchain and Nordic Semi SDK on MacOSX?</summary>
5571.    <g:image_link>https://leap.tardate.com/OSHChip/GccToolchain/assets/GccToolchain_build.jpg</g:image_link>
5572.    <category term="ARM"/>
5573.    <category term="gcc"/>
5574.    <category term="OSHChip"/>
5575.  </entry>
5576.  <entry>
5577.    <id>https://leap.tardate.com/OSHChip/blinky/</id>
5578.    <link href="https://leap.tardate.com/OSHChip/blinky/"/>
5579.    <updated>2020-03-14T16:56:38Z</updated>
5580.    <title>#213 OSHChip/blinky</title>
5581.    <summary>first tests of the OSHChip nRF51822-CFAC-A0 in DIP16 packaging</summary>
5582.    <g:image_link>https://leap.tardate.com/OSHChip/blinky/assets/blinky_build.jpg</g:image_link>
5583.    <category term="ARM"/>
5584.    <category term="OSHChip"/>
5585.  </entry>
5586.  <entry>
5587.    <id>https://leap.tardate.com/Electronics101/StayCreative/</id>
5588.    <link href="https://leap.tardate.com/Electronics101/StayCreative/"/>
5589.    <updated>2020-03-14T16:56:38Z</updated>
5590.    <title>#212 StayCreative</title>
5591.    <summary>an audio level VU meter driving a custom LED sign</summary>
5592.    <g:image_link>https://leap.tardate.com/Electronics101/StayCreative/assets/StayCreative_build.jpg</g:image_link>
5593.    <category term="Audio"/>
5594.    <category term="LED"/>
5595.  </entry>
5596.  <entry>
5597.    <id>https://leap.tardate.com/Electronics101/BuckConverterModules/</id>
5598.    <link href="https://leap.tardate.com/Electronics101/BuckConverterModules/"/>
5599.    <updated>2016-06-23T13:26:23Z</updated>
5600.    <title>#211 BuckConverterModules</title>
5601.    <summary>test a range of low-cost buck converter modules, often using LM2596</summary>
5602.    <g:image_link>https://leap.tardate.com/Electronics101/BuckConverterModules/assets/BuckConverterModules_build.jpg</g:image_link>
5603.    <category term="Power"/>
5604.  </entry>
5605.  <entry>
5606.    <id>https://leap.tardate.com/Audio/AudioAmps/TDA7297Kit/</id>
5607.    <link href="https://leap.tardate.com/Audio/AudioAmps/TDA7297Kit/"/>
5608.    <updated>2020-06-06T18:36:43Z</updated>
5609.    <title>#210 TDA7297 Audio Amp Kit</title>
5610.    <summary>testing a TDA7297 audio amplifier kit (pump up the jam)</summary>
5611.    <g:image_link>https://leap.tardate.com/Audio/AudioAmps/TDA7297Kit/assets/TDA7297Kit_build.jpg</g:image_link>
5612.    <category term="Audio"/>
5613.  </entry>
5614.  <entry>
5615.    <id>https://leap.tardate.com/playground/LedPanelDisplay72R02/</id>
5616.    <link href="https://leap.tardate.com/playground/LedPanelDisplay72R02/"/>
5617.    <updated>2016-05-01T17:45:19Z</updated>
5618.    <title>#209 LedPanelDisplay72R02</title>
5619.    <summary>test a 7-digit &amp; 7-status indicator LED display</summary>
5620.    <g:image_link>https://leap.tardate.com/playground/LedPanelDisplay72R02/assets/LedPanelDisplay72R02_build.jpg</g:image_link>
5621.    <category term="LED"/>
5622.    <category term="Arduino"/>
5623.  </entry>
5624.  <entry>
5625.    <id>https://leap.tardate.com/Radio/FM/SingleStageTransmitterKit/</id>
5626.    <link href="https://leap.tardate.com/Radio/FM/SingleStageTransmitterKit/"/>
5627.    <updated>2019-08-06T17:20:09Z</updated>
5628.    <title>#208 Single-stage FM Transmitter Kit</title>
5629.    <summary>build a simple single-stage FK702 FM Transmitter Kit by Future Kit</summary>
5630.    <g:image_link>https://leap.tardate.com/Radio/FM/SingleStageTransmitterKit/assets/SingleStageTransmitterKit_build.jpg</g:image_link>
5631.    <category term="Radio"/>
5632.    <category term="FM"/>
5633.    <category term="Transmitter"/>
5634.  </entry>
5635.  <entry>
5636.    <id>https://leap.tardate.com/Electronics101/FrequencyCounter/</id>
5637.    <link href="https://leap.tardate.com/Electronics101/FrequencyCounter/"/>
5638.    <updated>2016-04-24T12:44:35Z</updated>
5639.    <title>#207 FrequencyCounter</title>
5640.    <summary>test a CMOS frequency counter circuit with 100Hz - 5MHz range</summary>
5641.    <g:image_link>https://leap.tardate.com/Electronics101/FrequencyCounter/assets/FrequencyCounter_build.jpg</g:image_link>
5642.    <category term="CMOS"/>
5643.    <category term="Oscillators"/>
5644.  </entry>
5645.  <entry>
5646.    <id>https://leap.tardate.com/Electronics101/CD4047/AstableOscillator/</id>
5647.    <link href="https://leap.tardate.com/Electronics101/CD4047/AstableOscillator/"/>
5648.    <updated>2016-04-22T22:42:25Z</updated>
5649.    <title>#206 CD4047 Astable Oscillator</title>
5650.    <summary>test the astable operating mode of the CD4047</summary>
5651.    <g:image_link>https://leap.tardate.com/Electronics101/CD4047/AstableOscillator/assets/AstableOscillator_build.jpg</g:image_link>
5652.    <category term="CMOS/TTL"/>
5653.    <category term="Oscillators"/>
5654.  </entry>
5655.  <entry>
5656.    <id>https://leap.tardate.com/Electronics101/TriacDimmer/</id>
5657.    <link href="https://leap.tardate.com/Electronics101/TriacDimmer/"/>
5658.    <updated>2020-03-14T16:56:38Z</updated>
5659.    <title>#205 TriacDimmer</title>
5660.    <summary>investigate the operation of triacs and build the basic dimmaer circuit</summary>
5661.    <g:image_link>https://leap.tardate.com/Electronics101/TriacDimmer/assets/TriacDimmer_build.jpg</g:image_link>
5662.    <category term="Triac"/>
5663.    <category term="Thyristor"/>
5664.  </entry>
5665.  <entry>
5666.    <id>https://leap.tardate.com/playground/TemperatureLoggerTypeK/</id>
5667.    <link href="https://leap.tardate.com/playground/TemperatureLoggerTypeK/"/>
5668.    <updated>2016-04-16T00:37:20Z</updated>
5669.    <title>#204 Type K Temperature Logger</title>
5670.    <summary>simple high-temperature monitor using Type K (differential) and LM35 (cold-junction) sensors</summary>
5671.    <g:image_link>https://leap.tardate.com/playground/TemperatureLoggerTypeK/assets/TemperatureLoggerTypeK_build.jpg</g:image_link>
5672.    <category term="Sensors"/>
5673.    <category term="Thermocouple"/>
5674.    <category term="Arduino"/>
5675.  </entry>
5676.  <entry>
5677.    <id>https://leap.tardate.com/Kinetics/HomopolarMotor/</id>
5678.    <link href="https://leap.tardate.com/Kinetics/HomopolarMotor/"/>
5679.    <updated>2020-03-14T16:56:38Z</updated>
5680.    <title>#203 HomopolarMotor</title>
5681.    <summary>build a basic homopolar motor</summary>
5682.    <g:image_link>https://leap.tardate.com/Kinetics/HomopolarMotor/assets/HomopolarMotor_build.jpg</g:image_link>
5683.    <category term="Kinetics"/>
5684.  </entry>
5685.  <entry>
5686.    <id>https://leap.tardate.com/Audio/Visualization/AudioLevelIndicatorKit/</id>
5687.    <link href="https://leap.tardate.com/Audio/Visualization/AudioLevelIndicatorKit/"/>
5688.    <updated>2023-05-02T14:10:51Z</updated>
5689.    <title>#202 Audio Level Indicator Kit</title>
5690.    <summary>an audio level indicator kit based on the LM3915</summary>
5691.    <g:image_link>https://leap.tardate.com/Audio/Visualization/AudioLevelIndicatorKit/assets/AudioLevelIndicatorKit_build.jpg</g:image_link>
5692.    <category term="LM3915"/>
5693.    <category term="Audio"/>
5694.    <category term="LED"/>
5695.  </entry>
5696.  <entry>
5697.    <id>https://leap.tardate.com/Electronics101/555Timer/DoorbellKit/</id>
5698.    <link href="https://leap.tardate.com/Electronics101/555Timer/DoorbellKit/"/>
5699.    <updated>2016-04-05T17:55:07Z</updated>
5700.    <title>#201 555 Timer Doorbell Kit</title>
5701.    <summary>another two-tone doorbell using a 555 timer oscillator</summary>
5702.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/DoorbellKit/assets/DoorbellKit_build.jpg</g:image_link>
5703.    <category term="555 Timer"/>
5704.    <category term="Oscillators"/>
5705.  </entry>
5706.  <entry>
5707.    <id>https://leap.tardate.com/Kinetics/Solenoids/SolenoidMotor/</id>
5708.    <link href="https://leap.tardate.com/Kinetics/Solenoids/SolenoidMotor/"/>
5709.    <updated>2019-08-19T14:38:51Z</updated>
5710.    <title>#200 Solenoid Motor</title>
5711.    <summary>a single-cylinder mini-solenoid engine</summary>
5712.    <g:image_link>https://leap.tardate.com/Kinetics/Solenoids/SolenoidMotor/assets/SolenoidMotor_build.jpg</g:image_link>
5713.    <category term="Solenoid"/>
5714.  </entry>
5715.  <entry>
5716.    <id>https://leap.tardate.com/playground/LED7Segment/CD4026BucketBrigade/</id>
5717.    <link href="https://leap.tardate.com/playground/LED7Segment/CD4026BucketBrigade/"/>
5718.    <updated>2016-03-21T15:45:43Z</updated>
5719.    <title>#199 7-Segment CD4026 Bucket-brigade</title>
5720.    <summary>a CD4026 bucket-brigade for driving multiple 7-segment LED displays</summary>
5721.    <g:image_link>https://leap.tardate.com/playground/LED7Segment/CD4026BucketBrigade/assets/CD4026BucketBrigade_build.jpg</g:image_link>
5722.    <category term="LED"/>
5723.    <category term="7-Segment"/>
5724.    <category term="CMOS/TTL"/>
5725.    <category term="Arduino"/>
5726.  </entry>
5727.  <entry>
5728.    <id>https://leap.tardate.com/Electronics101/HallEffectSwitch/</id>
5729.    <link href="https://leap.tardate.com/Electronics101/HallEffectSwitch/"/>
5730.    <updated>2019-08-19T14:38:51Z</updated>
5731.    <title>#198 Hall Effect Switch</title>
5732.    <summary>using a Hall effect switch (A3144)</summary>
5733.    <g:image_link>https://leap.tardate.com/Electronics101/HallEffectSwitch/assets/HallEffectSwitch_build.jpg</g:image_link>
5734.    <category term="Sensors"/>
5735.  </entry>
5736.  <entry>
5737.    <id>https://leap.tardate.com/Electronics101/WienBridgeAudioToneGenerator/</id>
5738.    <link href="https://leap.tardate.com/Electronics101/WienBridgeAudioToneGenerator/"/>
5739.    <updated>2016-03-20T02:22:54Z</updated>
5740.    <title>#197 WienBridgeAudioToneGenerator</title>
5741.    <summary>fixed-frequency tone generator based on a Wien Bridge Oscillator</summary>
5742.    <g:image_link>https://leap.tardate.com/Electronics101/WienBridgeAudioToneGenerator/assets/WienBridgeAudioToneGenerator_build.jpg</g:image_link>
5743.    <category term="OpAmp"/>
5744.    <category term="Oscillators"/>
5745.  </entry>
5746.  <entry>
5747.    <id>https://leap.tardate.com/playground/LED7Segment/CD4026Drive/</id>
5748.    <link href="https://leap.tardate.com/playground/LED7Segment/CD4026Drive/"/>
5749.    <updated>2016-03-14T12:09:16Z</updated>
5750.    <title>#196 7-Segment CD4026 Drive</title>
5751.    <summary>driving a 7-segment LED display with CD4026 Counter</summary>
5752.    <g:image_link>https://leap.tardate.com/playground/LED7Segment/CD4026Drive/assets/CD4026Drive_build.jpg</g:image_link>
5753.    <category term="LED"/>
5754.    <category term="7-Segment"/>
5755.    <category term="CMOS/TTL"/>
5756.    <category term="Arduino"/>
5757.  </entry>
5758.  <entry>
5759.    <id>https://leap.tardate.com/Electronics101/LCResonator/</id>
5760.    <link href="https://leap.tardate.com/Electronics101/LCResonator/"/>
5761.    <updated>2016-03-10T14:04:29Z</updated>
5762.    <title>#195 LCResonator</title>
5763.    <summary>measure the resonant frequency of an LC circuit or inductance of an inductor </summary>
5764.    <g:image_link>https://leap.tardate.com/Electronics101/LCResonator/assets/LCResonator_build.jpg</g:image_link>
5765.    <category term="Oscillators"/>
5766.    <category term="LC"/>
5767.  </entry>
5768.  <entry>
5769.    <id>https://leap.tardate.com/ESP8266/DIYDevBoard/</id>
5770.    <link href="https://leap.tardate.com/ESP8266/DIYDevBoard/"/>
5771.    <updated>2017-09-24T13:47:05Z</updated>
5772.    <title>#194 ESP8266/DIYDevBoard</title>
5773.    <summary>a DIY devboard for an ESP-01 ESP8266</summary>
5774.    <g:image_link>https://leap.tardate.com/ESP8266/DIYDevBoard/assets/DIYDevBoard_build.jpg</g:image_link>
5775.    <category term="ESP8266"/>
5776.  </entry>
5777.  <entry>
5778.    <id>https://leap.tardate.com/8051/PovShakeStickKit/</id>
5779.    <link href="https://leap.tardate.com/8051/PovShakeStickKit/"/>
5780.    <updated>2023-05-02T14:10:51Z</updated>
5781.    <title>#193 PoV Shake Stick Kit</title>
5782.    <summary>build and investigate an AT89S52-based &quot;shake stick&quot; kit</summary>
5783.    <g:image_link>https://leap.tardate.com/8051/PovShakeStickKit/assets/PovShakeStickKit_build.jpg</g:image_link>
5784.    <category term="8051"/>
5785.    <category term="LED"/>
5786.  </entry>
5787.  <entry>
5788.    <id>https://leap.tardate.com/Kraft/SagradaFamilia/</id>
5789.    <link href="https://leap.tardate.com/Kraft/SagradaFamilia/"/>
5790.    <updated>2020-03-14T16:56:38Z</updated>
5791.    <title>#192 Sagrada Família</title>
5792.    <summary>a paper model with some LED effects</summary>
5793.    <g:image_link>https://leap.tardate.com/Kraft/SagradaFamilia/assets/SagradaFamilia_build.jpg</g:image_link>
5794.    <category term="LED"/>
5795.    <category term="Craft"/>
5796.  </entry>
5797.  <entry>
5798.    <id>https://leap.tardate.com/Electronics101/LowVoltageGlowingLEDs/</id>
5799.    <link href="https://leap.tardate.com/Electronics101/LowVoltageGlowingLEDs/"/>
5800.    <updated>2016-02-28T05:38:25Z</updated>
5801.    <title>#191 Low-voltage Glowing LEDs</title>
5802.    <summary>a dual-LED &quot;glowing&quot; oscillator from a 1.5V supply</summary>
5803.    <g:image_link>https://leap.tardate.com/Electronics101/LowVoltageGlowingLEDs/assets/LowVoltageGlowingLEDs_build.jpg</g:image_link>
5804.    <category term="BJT"/>
5805.    <category term="LED"/>
5806.    <category term="Oscillators"/>
5807.    <category term="Power"/>
5808.  </entry>
5809.  <entry>
5810.    <id>https://leap.tardate.com/playground/MultiSlaveSPI/</id>
5811.    <link href="https://leap.tardate.com/playground/MultiSlaveSPI/"/>
5812.    <updated>2016-02-22T01:16:33Z</updated>
5813.    <title>#190 MultiSlaveSPI</title>
5814.    <summary>using SPI to control multiple devices that support an SPIish interface</summary>
5815.    <g:image_link>https://leap.tardate.com/playground/MultiSlaveSPI/assets/MultiSlaveSPI_build.jpg</g:image_link>
5816.    <category term="SPI"/>
5817.    <category term="Arduino"/>
5818.  </entry>
5819.  <entry>
5820.    <id>https://leap.tardate.com/playground/LED7Segment/ShiftDriveSPI/</id>
5821.    <link href="https://leap.tardate.com/playground/LED7Segment/ShiftDriveSPI/"/>
5822.    <updated>2016-02-22T01:16:33Z</updated>
5823.    <title>#189 7-Segment Shift Drive SPI</title>
5824.    <summary>using SPI to control a 7-segment LED display via a 74HC595 shift register</summary>
5825.    <g:image_link>https://leap.tardate.com/playground/LED7Segment/ShiftDriveSPI/assets/ShiftDriveSPI_build.jpg</g:image_link>
5826.    <category term="LED"/>
5827.    <category term="7-Segment"/>
5828.    <category term="CMOS/TTL"/>
5829.    <category term="Arduino"/>
5830.    <category term="SPI"/>
5831.  </entry>
5832.  <entry>
5833.    <id>https://leap.tardate.com/playground/EEPROM/AT24C02/BasicReadWrite/</id>
5834.    <link href="https://leap.tardate.com/playground/EEPROM/AT24C02/BasicReadWrite/"/>
5835.    <updated>2016-02-22T01:16:33Z</updated>
5836.    <title>#188 Basic AT24C02 EEPROM Read/Write</title>
5837.    <summary>basic read/write operations to external EEPROM (AT24C02) with the Wire library</summary>
5838.    <g:image_link>https://leap.tardate.com/playground/EEPROM/AT24C02/BasicReadWrite/assets/BasicReadWrite_build.jpg</g:image_link>
5839.    <category term="EEPROM"/>
5840.    <category term="Arduino"/>
5841.  </entry>
5842.  <entry>
5843.    <id>https://leap.tardate.com/playground/nRF24/PingPong/</id>
5844.    <link href="https://leap.tardate.com/playground/nRF24/PingPong/"/>
5845.    <updated>2016-02-18T18:30:09Z</updated>
5846.    <title>#187 nRF24/PingPong</title>
5847.    <summary>two Arduino's entertaining themselves with a game of &quot;ping pong&quot; over nRF24L01+ 2.4GHz RF</summary>
5848.    <g:image_link>https://leap.tardate.com/playground/nRF24/PingPong/assets/PingPong_build.jpg</g:image_link>
5849.    <category term="nRF24"/>
5850.    <category term="Arduino"/>
5851.  </entry>
5852.  <entry>
5853.    <id>https://leap.tardate.com/Electronics101/DigitalLogic/AsyncJKCounter/</id>
5854.    <link href="https://leap.tardate.com/Electronics101/DigitalLogic/AsyncJKCounter/"/>
5855.    <updated>2017-05-25T13:46:13Z</updated>
5856.    <title>#186 Asynchronous JK Counter</title>
5857.    <summary>an asynchronous 4-bit counter built with JK Flip-Flops</summary>
5858.    <g:image_link>https://leap.tardate.com/Electronics101/DigitalLogic/AsyncJKCounter/assets/AsyncJKCounter_build.jpg</g:image_link>
5859.    <category term="CMOS/TTL"/>
5860.    <category term="Digital Logic"/>
5861.  </entry>
5862.  <entry>
5863.    <id>https://leap.tardate.com/Kinetics/StirlingEngineHB13/</id>
5864.    <link href="https://leap.tardate.com/Kinetics/StirlingEngineHB13/"/>
5865.    <updated>2016-02-09T11:41:05Z</updated>
5866.    <title>#185 HB13 Stirling Engine</title>
5867.    <summary>building the Böhm Stirling-Technik HB13 Small Bonsai engine</summary>
5868.    <g:image_link>https://leap.tardate.com/Kinetics/StirlingEngineHB13/assets/StirlingEngineHB13_build.jpg</g:image_link>
5869.    <category term="Kinetics"/>
5870.  </entry>
5871.  <entry>
5872.    <id>https://leap.tardate.com/Electronics101/555Timer/AdjustablePulseGenerator/</id>
5873.    <link href="https://leap.tardate.com/Electronics101/555Timer/AdjustablePulseGenerator/"/>
5874.    <updated>2016-02-08T11:30:16Z</updated>
5875.    <title>#184 AdjustablePulseGenerator</title>
5876.    <summary>widely-adjustable square wave generator using the 555 timer</summary>
5877.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/AdjustablePulseGenerator/assets/AdjustablePulseGenerator_build.jpg</g:image_link>
5878.    <category term="555 Timer"/>
5879.    <category term="Oscillators"/>
5880.  </entry>
5881.  <entry>
5882.    <id>https://leap.tardate.com/Electronics101/PolarityTester/</id>
5883.    <link href="https://leap.tardate.com/Electronics101/PolarityTester/"/>
5884.    <updated>2016-02-07T16:41:17Z</updated>
5885.    <title>#183 Polarity Tester</title>
5886.    <summary>Demonstrate a polarity-testing circuit using the CD4069 inverter</summary>
5887.    <g:image_link>https://leap.tardate.com/Electronics101/PolarityTester/assets/PolarityTester_build.jpg</g:image_link>
5888.    <category term="CMOS/TTL"/>
5889.  </entry>
5890.  <entry>
5891.    <id>https://leap.tardate.com/Electronics101/Power/PowerSupply317Kit/</id>
5892.    <link href="https://leap.tardate.com/Electronics101/Power/PowerSupply317Kit/"/>
5893.    <updated>2024-04-10T06:30:53Z</updated>
5894.    <title>#182 LM317 Variable Power Supply Kit</title>
5895.    <summary>build and test a mains-powered 1.25V-12V DC LM317 power supply kit</summary>
5896.    <g:image_link>https://leap.tardate.com/Electronics101/Power/PowerSupply317Kit/assets/PowerSupply317Kit_build.jpg</g:image_link>
5897.    <category term="Power"/>
5898.  </entry>
5899.  <entry>
5900.    <id>https://leap.tardate.com/Electronics101/VoltmeterModule/</id>
5901.    <link href="https://leap.tardate.com/Electronics101/VoltmeterModule/"/>
5902.    <updated>2016-02-06T07:40:24Z</updated>
5903.    <title>#181 VoltmeterModule</title>
5904.    <summary>test a 3-wire voltmeter module</summary>
5905.    <g:image_link>https://leap.tardate.com/Electronics101/VoltmeterModule/assets/VoltmeterModule_build.jpg</g:image_link>
5906.    <category term="Sensors"/>
5907.  </entry>
5908.  <entry>
5909.    <id>https://leap.tardate.com/Electronics101/Oscillators/Colpitts/</id>
5910.    <link href="https://leap.tardate.com/Electronics101/Oscillators/Colpitts/"/>
5911.    <updated>2018-10-07T15:45:26Z</updated>
5912.    <title>#180 ColpittsOscillator</title>
5913.    <summary>testing a basic Colpitts Oscillator circuit</summary>
5914.    <g:image_link>https://leap.tardate.com/Electronics101/Oscillators/Colpitts/assets/Colpitts_build.jpg</g:image_link>
5915.    <category term="LC"/>
5916.    <category term="Oscillators"/>
5917.  </entry>
5918.  <entry>
5919.    <id>https://leap.tardate.com/playground/LEDx16Module/</id>
5920.    <link href="https://leap.tardate.com/playground/LEDx16Module/"/>
5921.    <updated>2016-05-22T08:10:42Z</updated>
5922.    <title>#179 LEDx16Module</title>
5923.    <summary>a custom 16 LED SMD PCB with 74HC595 shift register interface</summary>
5924.    <g:image_link>https://leap.tardate.com/playground/LEDx16Module/assets/LEDx16Module_build.jpg</g:image_link>
5925.    <category term="CMOS/TTL"/>
5926.    <category term="SMD"/>
5927.    <category term="Arduino"/>
5928.  </entry>
5929.  <entry>
5930.    <id>https://leap.tardate.com/playground/LED7Segment/ShiftDriveModule/</id>
5931.    <link href="https://leap.tardate.com/playground/LED7Segment/ShiftDriveModule/"/>
5932.    <updated>2016-02-22T01:16:33Z</updated>
5933.    <title>#178 7-Segment Shift Drive Module</title>
5934.    <summary>a custom 7-segment LED display module PCB with 74HC595 shift register interface</summary>
5935.    <g:image_link>https://leap.tardate.com/playground/LED7Segment/ShiftDriveModule/assets/ShiftDriveModule_build.jpg</g:image_link>
5936.    <category term="7-Segment"/>
5937.    <category term="CMOS/TTL"/>
5938.    <category term="Arduino"/>
5939.    <category term="PCB"/>
5940.  </entry>
5941.  <entry>
5942.    <id>https://leap.tardate.com/playground/LED7Segment/ShiftDrive/</id>
5943.    <link href="https://leap.tardate.com/playground/LED7Segment/ShiftDrive/"/>
5944.    <updated>2016-01-26T14:06:56Z</updated>
5945.    <title>#177 7-Segment Shift Drive</title>
5946.    <summary>test control of a 7-segment LED display via a 74HC595 shift register</summary>
5947.    <g:image_link>https://leap.tardate.com/playground/LED7Segment/ShiftDrive/assets/ShiftDrive_build.jpg</g:image_link>
5948.    <category term="LED"/>
5949.    <category term="7-Segment"/>
5950.    <category term="CMOS/TTL"/>
5951.    <category term="Arduino"/>
5952.  </entry>
5953.  <entry>
5954.    <id>https://leap.tardate.com/Electronics101/nRF24Breakout/</id>
5955.    <link href="https://leap.tardate.com/Electronics101/nRF24Breakout/"/>
5956.    <updated>2016-02-17T13:53:39Z</updated>
5957.    <title>#176 nRF24Breakout</title>
5958.    <summary>a simple PCB breadboard adapter for 8-pin nRF24 modules</summary>
5959.    <g:image_link>https://leap.tardate.com/Electronics101/nRF24Breakout/assets/nRF24Breakout_build.jpg</g:image_link>
5960.    <category term="nRF24"/>
5961.    <category term="PCB"/>
5962.  </entry>
5963.  <entry>
5964.    <id>https://leap.tardate.com/Electronics101/SwitchSoftLatch/</id>
5965.    <link href="https://leap.tardate.com/Electronics101/SwitchSoftLatch/"/>
5966.    <updated>2016-01-07T01:28:46Z</updated>
5967.    <title>#175 Soft-latch Switch</title>
5968.    <summary>Test a soft-latching power switching circuit based on a p-channel MOSFET</summary>
5969.    <g:image_link>https://leap.tardate.com/Electronics101/SwitchSoftLatch/assets/SwitchSoftLatch_build.jpg</g:image_link>
5970.    <category term="MOSFET"/>
5971.    <category term="BJT"/>
5972.  </entry>
5973.  <entry>
5974.    <id>https://leap.tardate.com/Electronics101/UsbNotifier/</id>
5975.    <link href="https://leap.tardate.com/Electronics101/UsbNotifier/"/>
5976.    <updated>2020-03-14T16:56:38Z</updated>
5977.    <title>#174 UsbNotifier</title>
5978.    <summary>tear-down and demo code for some oldUSB Webmail Notifier devices</summary>
5979.    <g:image_link>https://leap.tardate.com/Electronics101/UsbNotifier/assets/UsbNotifier_build.jpg</g:image_link>
5980.    <category term="LED"/>
5981.    <category term="USB"/>
5982.  </entry>
5983.  <entry>
5984.    <id>https://leap.tardate.com/playground/LEDCubes/Mini4/</id>
5985.    <link href="https://leap.tardate.com/playground/LEDCubes/Mini4/"/>
5986.    <updated>2020-03-14T16:56:38Z</updated>
5987.    <title>#173 LEDCubes/Mini4</title>
5988.    <summary>a mini 64 LED cube with an Atmel328 and 3 x 74HC595 register interface</summary>
5989.    <g:image_link>https://leap.tardate.com/playground/LEDCubes/Mini4/assets/Mini4_build.jpg</g:image_link>
5990.    <category term="LED"/>
5991.    <category term="CMOS/TTL"/>
5992.    <category term="Arduino"/>
5993.  </entry>
5994.  <entry>
5995.    <id>https://leap.tardate.com/Electronics101/SCRLatch/</id>
5996.    <link href="https://leap.tardate.com/Electronics101/SCRLatch/"/>
5997.    <updated>2015-12-19T12:29:51Z</updated>
5998.    <title>#172 SCRLatch</title>
5999.    <summary>exploring the behaviour of low-power silicon controlled rectifiers (SCR)</summary>
6000.    <g:image_link>https://leap.tardate.com/Electronics101/SCRLatch/assets/SCRLatch_build.jpg</g:image_link>
6001.    <category term="SCR"/>
6002.    <category term="Thyristor"/>
6003.  </entry>
6004.  <entry>
6005.    <id>https://leap.tardate.com/Electronics101/SMDPracticeBoards/</id>
6006.    <link href="https://leap.tardate.com/Electronics101/SMDPracticeBoards/"/>
6007.    <updated>2016-06-23T14:50:15Z</updated>
6008.    <title>#171 SMD Practice Boards</title>
6009.    <summary>a collection of notes, kits and resources for hand-soldering surface mount devices</summary>
6010.    <g:image_link>https://leap.tardate.com/Electronics101/SMDPracticeBoards/assets/SMDPracticeBoards_build.jpg</g:image_link>
6011.    <category term="SMD"/>
6012.    <category term="CMOS"/>
6013.    <category term="555 Timer"/>
6014.  </entry>
6015.  <entry>
6016.    <id>https://leap.tardate.com/Electronics101/ClapSwitchKit/</id>
6017.    <link href="https://leap.tardate.com/Electronics101/ClapSwitchKit/"/>
6018.    <updated>2015-12-17T00:18:06Z</updated>
6019.    <title>#170 ClapSwitchKit</title>
6020.    <summary>build and analyse a simple clap switch circuit available as a kit</summary>
6021.    <g:image_link>https://leap.tardate.com/Electronics101/ClapSwitchKit/assets/ClapSwitchKit_build.jpg</g:image_link>
6022.    <category term="Oscillators"/>
6023.    <category term="BJT"/>
6024.    <category term="Digital Logic"/>
6025.  </entry>
6026.  <entry>
6027.    <id>https://leap.tardate.com/playground/RGBLedModule/</id>
6028.    <link href="https://leap.tardate.com/playground/RGBLedModule/"/>
6029.    <updated>2015-12-13T14:23:03Z</updated>
6030.    <title>#169 RGBLedModule</title>
6031.    <summary>demo an RGB LED module</summary>
6032.    <g:image_link>https://leap.tardate.com/playground/RGBLedModule/assets/RGBLedModule_build.jpg</g:image_link>
6033.    <category term="LED"/>
6034.    <category term="Arduino"/>
6035.  </entry>
6036.  <entry>
6037.    <id>https://leap.tardate.com/playground/CurrentSensorModule/</id>
6038.    <link href="https://leap.tardate.com/playground/CurrentSensorModule/"/>
6039.    <updated>2015-12-13T14:23:03Z</updated>
6040.    <title>#168 CurrentSensorModule</title>
6041.    <summary>test an ACS712 current sensor module with display on a 5110 LCD</summary>
6042.    <g:image_link>https://leap.tardate.com/playground/CurrentSensorModule/assets/CurrentSensorModule_build.jpg</g:image_link>
6043.    <category term="Sensors"/>
6044.    <category term="Arduino"/>
6045.  </entry>
6046.  <entry>
6047.    <id>https://leap.tardate.com/playground/VoltageSensorModule/</id>
6048.    <link href="https://leap.tardate.com/playground/VoltageSensorModule/"/>
6049.    <updated>2015-12-12T16:06:04Z</updated>
6050.    <title>#167 VoltageSensorModule</title>
6051.    <summary>test a 25V voltage sensor module with display on a 5110 LCD</summary>
6052.    <g:image_link>https://leap.tardate.com/playground/VoltageSensorModule/assets/VoltageSensorModule_build.jpg</g:image_link>
6053.    <category term="Sensors"/>
6054.    <category term="Arduino"/>
6055.  </entry>
6056.  <entry>
6057.    <id>https://leap.tardate.com/playground/DS3231RTC/TimeDemo/</id>
6058.    <link href="https://leap.tardate.com/playground/DS3231RTC/TimeDemo/"/>
6059.    <updated>2015-12-12T16:06:04Z</updated>
6060.    <title>#166 DS3231RTC/TimeDemo</title>
6061.    <summary>prints the system time synced from the RTC to the serial output</summary>
6062.    <g:image_link>https://leap.tardate.com/playground/DS3231RTC/TimeDemo/assets/TimeDemo_build.jpg</g:image_link>
6063.    <category term="RTC"/>
6064.    <category term="Arduino"/>
6065.  </entry>
6066.  <entry>
6067.    <id>https://leap.tardate.com/Electronics101/Power/LM2662Inverter/</id>
6068.    <link href="https://leap.tardate.com/Electronics101/Power/LM2662Inverter/"/>
6069.    <updated>2024-04-10T06:30:53Z</updated>
6070.    <title>#165 LM2662 Inverter</title>
6071.    <summary>test a negative 5V power supply using the LM2662 Switched Capacitor Voltage Converter</summary>
6072.    <g:image_link>https://leap.tardate.com/Electronics101/Power/LM2662Inverter/assets/LM2662Inverter_build.jpg</g:image_link>
6073.    <category term="Power"/>
6074.  </entry>
6075.  <entry>
6076.    <id>https://leap.tardate.com/Electronics101/Oscillators/WatsonLedRing/</id>
6077.    <link href="https://leap.tardate.com/Electronics101/Oscillators/WatsonLedRing/"/>
6078.    <updated>2023-05-02T14:10:52Z</updated>
6079.    <title>#164 Watson LED Ring</title>
6080.    <summary>test a Watson 3-LED Ring oscillator</summary>
6081.    <g:image_link>https://leap.tardate.com/Electronics101/Oscillators/WatsonLedRing/assets/WatsonLedRing_build.jpg</g:image_link>
6082.    <category term="Oscillators"/>
6083.    <category term="LED"/>
6084.  </entry>
6085.  <entry>
6086.    <id>https://leap.tardate.com/Electronics101/VariableSawtoothGenerator/</id>
6087.    <link href="https://leap.tardate.com/Electronics101/VariableSawtoothGenerator/"/>
6088.    <updated>2015-11-22T10:45:17Z</updated>
6089.    <title>#163 VariableSawtoothGenerator</title>
6090.    <summary>test a variable-geometry, fixed-amplitude sawtooth wave generator circuit</summary>
6091.    <g:image_link>https://leap.tardate.com/Electronics101/VariableSawtoothGenerator/assets/VariableSawtoothGenerator_build.jpg</g:image_link>
6092.    <category term="OpAmp"/>
6093.    <category term="Oscillators"/>
6094.  </entry>
6095.  <entry>
6096.    <id>https://leap.tardate.com/Electronics101/BoostBuckConverterModule/</id>
6097.    <link href="https://leap.tardate.com/Electronics101/BoostBuckConverterModule/"/>
6098.    <updated>2015-10-31T11:34:39Z</updated>
6099.    <title>#162 BoostBuckConverterModule</title>
6100.    <summary>quick test of an LM2577S/LM2596S Boost/Buck Converter Module</summary>
6101.    <g:image_link>https://leap.tardate.com/Electronics101/BoostBuckConverterModule/assets/BoostBuckConverterModule_build.jpg</g:image_link>
6102.    <category term="Power"/>
6103.  </entry>
6104.  <entry>
6105.    <id>https://leap.tardate.com/Electronics101/ML741/NonInvertingAmplifier/</id>
6106.    <link href="https://leap.tardate.com/Electronics101/ML741/NonInvertingAmplifier/"/>
6107.    <updated>2015-10-27T11:30:50Z</updated>
6108.    <title>#161 ML741/NonInvertingAmplifier</title>
6109.    <summary>test a non-inverting amplifier circuit using the ML741 discrete component opamp</summary>
6110.    <g:image_link>https://leap.tardate.com/Electronics101/ML741/NonInvertingAmplifier/assets/NonInvertingAmplifier_build.jpg</g:image_link>
6111.    <category term="OpAmp"/>
6112.  </entry>
6113.  <entry>
6114.    <id>https://leap.tardate.com/Electronics101/LM324/SplitterBuffer/</id>
6115.    <link href="https://leap.tardate.com/Electronics101/LM324/SplitterBuffer/"/>
6116.    <updated>2015-10-27T11:30:50Z</updated>
6117.    <title>#160 LM324/SplitterBuffer</title>
6118.    <summary>demonstrate load-independance of an LM324 buffer and signal splitter</summary>
6119.    <g:image_link>https://leap.tardate.com/Electronics101/LM324/SplitterBuffer/assets/SplitterBuffer_build.jpg</g:image_link>
6120.    <category term="OpAmp"/>
6121.  </entry>
6122.  <entry>
6123.    <id>https://leap.tardate.com/Electronics101/ML741/InvertingAmplifier/</id>
6124.    <link href="https://leap.tardate.com/Electronics101/ML741/InvertingAmplifier/"/>
6125.    <updated>2015-10-27T11:30:50Z</updated>
6126.    <title>#159 ML741/InvertingAmplifier</title>
6127.    <summary>test an inverting amplifier circuit using the ML741 discrete component opamp</summary>
6128.    <g:image_link>https://leap.tardate.com/Electronics101/ML741/InvertingAmplifier/assets/InvertingAmplifier_build.jpg</g:image_link>
6129.    <category term="OpAmp"/>
6130.  </entry>
6131.  <entry>
6132.    <id>https://leap.tardate.com/Electronics101/ML741/Inverter/</id>
6133.    <link href="https://leap.tardate.com/Electronics101/ML741/Inverter/"/>
6134.    <updated>2015-10-24T06:01:57Z</updated>
6135.    <title>#158 ML741/Inverter</title>
6136.    <summary>test an inverter circuit using the ML741 discrete component opamp</summary>
6137.    <g:image_link>https://leap.tardate.com/Electronics101/ML741/Inverter/assets/Inverter_build.jpg</g:image_link>
6138.    <category term="OpAmp"/>
6139.  </entry>
6140.  <entry>
6141.    <id>https://leap.tardate.com/Electronics101/ML741/VoltageFollower/</id>
6142.    <link href="https://leap.tardate.com/Electronics101/ML741/VoltageFollower/"/>
6143.    <updated>2015-10-22T17:06:59Z</updated>
6144.    <title>#157 ML741/VoltageFollower</title>
6145.    <summary>test a voltage follower/buffer circuit with the ML741 discrete component opamp</summary>
6146.    <g:image_link>https://leap.tardate.com/Electronics101/ML741/VoltageFollower/assets/VoltageFollower_build.jpg</g:image_link>
6147.    <category term="OpAmp"/>
6148.  </entry>
6149.  <entry>
6150.    <id>https://leap.tardate.com/Equipment/MSO5074FG_unboxing/</id>
6151.    <link href="https://leap.tardate.com/Equipment/MSO5074FG_unboxing/"/>
6152.    <updated>2016-10-22T15:12:00Z</updated>
6153.    <title>#156 MSO5074FG_unboxing</title>
6154.    <summary>unboxing and first tests of a Hantek MSO5074FG oscilloscope</summary>
6155.    <g:image_link>https://leap.tardate.com/Equipment/MSO5074FG_unboxing/assets/MSO5074FG_unboxing_build.jpg</g:image_link>
6156.    <category term="Tools"/>
6157.    <category term="Test Equipment"/>
6158.    <category term="Oscilloscope"/>
6159.  </entry>
6160.  <entry>
6161.    <id>https://leap.tardate.com/ESP8266/SerialTest/ruby/</id>
6162.    <link href="https://leap.tardate.com/ESP8266/SerialTest/ruby/"/>
6163.    <updated>2017-09-24T13:47:05Z</updated>
6164.    <title>#155 ESP8266/SerialTest/ruby</title>
6165.    <summary>exercising ESP8266 serial communications with Ruby</summary>
6166.    <g:image_link>https://leap.tardate.com/ESP8266/SerialTest/ruby/assets/ruby_build.jpg</g:image_link>
6167.    <category term="ESP8266"/>
6168.    <category term="ruby"/>
6169.  </entry>
6170.  <entry>
6171.    <id>https://leap.tardate.com/ESP8266/SerialTest/</id>
6172.    <link href="https://leap.tardate.com/ESP8266/SerialTest/"/>
6173.    <updated>2017-09-24T13:47:05Z</updated>
6174.    <title>#154 ESP8266/SerialTest</title>
6175.    <summary>first test of an ESP8266 module - serial communication to the SoC</summary>
6176.    <g:image_link>https://leap.tardate.com/ESP8266/SerialTest/assets/SerialTest_build.jpg</g:image_link>
6177.    <category term="ESP8266"/>
6178.  </entry>
6179.  <entry>
6180.    <id>https://leap.tardate.com/Electronics101/Power/LinearRegulators/AMS1117/</id>
6181.    <link href="https://leap.tardate.com/Electronics101/Power/LinearRegulators/AMS1117/"/>
6182.    <updated>2021-07-20T17:22:12Z</updated>
6183.    <title>#153 AMS1117 Regulator</title>
6184.    <summary>test an AMS1117 3.3V linear regulator</summary>
6185.    <g:image_link>https://leap.tardate.com/Electronics101/Power/LinearRegulators/AMS1117/assets/AMS1117_build.jpg</g:image_link>
6186.    <category term="Power"/>
6187.  </entry>
6188.  <entry>
6189.    <id>https://leap.tardate.com/Electronics101/Power/LinearRegulators/LD1117/</id>
6190.    <link href="https://leap.tardate.com/Electronics101/Power/LinearRegulators/LD1117/"/>
6191.    <updated>2021-07-20T17:22:12Z</updated>
6192.    <title>#152 LD1117 Regulator</title>
6193.    <summary>test an LD1117 3.3V linear regulator</summary>
6194.    <g:image_link>https://leap.tardate.com/Electronics101/Power/LinearRegulators/LD1117/assets/LD1117_build.jpg</g:image_link>
6195.    <category term="Power"/>
6196.  </entry>
6197.  <entry>
6198.    <id>https://leap.tardate.com/Electronics101/ML741/Comparator/</id>
6199.    <link href="https://leap.tardate.com/Electronics101/ML741/Comparator/"/>
6200.    <updated>2015-10-11T20:12:10Z</updated>
6201.    <title>#151 ML741/Comparator</title>
6202.    <summary>test a comparator circuit with the ML741 discrete component opamp</summary>
6203.    <g:image_link>https://leap.tardate.com/Electronics101/ML741/Comparator/assets/Comparator_build.jpg</g:image_link>
6204.    <category term="OpAmp"/>
6205.  </entry>
6206.  <entry>
6207.    <id>https://leap.tardate.com/Electronics101/ML741/</id>
6208.    <link href="https://leap.tardate.com/Electronics101/ML741/"/>
6209.    <updated>2015-10-11T20:12:10Z</updated>
6210.    <title>#150 ML741</title>
6211.    <summary>an LM741-style OpAmp built with discrete components</summary>
6212.    <g:image_link>https://leap.tardate.com/Electronics101/ML741/assets/ML741_build.jpg</g:image_link>
6213.    <category term="OpAmp"/>
6214.  </entry>
6215.  <entry>
6216.    <id>https://leap.tardate.com/playground/Lcd5110/JuliansU8glibDemo/</id>
6217.    <link href="https://leap.tardate.com/playground/Lcd5110/JuliansU8glibDemo/"/>
6218.    <updated>2015-10-04T11:28:16Z</updated>
6219.    <title>#149 Lcd5110/JuliansU8glibDemo</title>
6220.    <summary>quick test drive of Julian Ilett's 5110 LCD demo with the u8glib library</summary>
6221.    <g:image_link>https://leap.tardate.com/playground/Lcd5110/JuliansU8glibDemo/assets/JuliansU8glibDemo_build.jpg</g:image_link>
6222.    <category term="LCD"/>
6223.    <category term="Arduino"/>
6224.  </entry>
6225.  <entry>
6226.    <id>https://leap.tardate.com/playground/AD9833/BasicDemoCycle/</id>
6227.    <link href="https://leap.tardate.com/playground/AD9833/BasicDemoCycle/"/>
6228.    <updated>2015-10-03T17:01:45Z</updated>
6229.    <title>#148 AD9833 Basic Demo Cycle</title>
6230.    <summary>run a basic waveform demo with an AD9833 module</summary>
6231.    <g:image_link>https://leap.tardate.com/playground/AD9833/BasicDemoCycle/assets/BasicDemoCycle_build.jpg</g:image_link>
6232.    <category term="Arduino"/>
6233.    <category term="Oscillators"/>
6234.  </entry>
6235.  <entry>
6236.    <id>https://leap.tardate.com/Electronics101/555Timer/VoltageDoublerChargePump/</id>
6237.    <link href="https://leap.tardate.com/Electronics101/555Timer/VoltageDoublerChargePump/"/>
6238.    <updated>2015-10-01T16:31:15Z</updated>
6239.    <title>#147 VoltageDoublerChargePump</title>
6240.    <summary>test a voltage-doubling charge pump circuit based on a 555 timer</summary>
6241.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/VoltageDoublerChargePump/assets/VoltageDoublerChargePump_build.jpg</g:image_link>
6242.    <category term="555 Timer"/>
6243.    <category term="Power"/>
6244.  </entry>
6245.  <entry>
6246.    <id>https://leap.tardate.com/Electronics101/555Timer/InvertingChargePump/</id>
6247.    <link href="https://leap.tardate.com/Electronics101/555Timer/InvertingChargePump/"/>
6248.    <updated>2015-09-30T18:21:34Z</updated>
6249.    <title>#146 InvertingChargePump</title>
6250.    <summary>test an inverting charge pump circuit based on a 555 timer</summary>
6251.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/InvertingChargePump/assets/InvertingChargePump_build.jpg</g:image_link>
6252.    <category term="555 Timer"/>
6253.    <category term="Power"/>
6254.  </entry>
6255.  <entry>
6256.    <id>https://leap.tardate.com/Electronics101/555Timer/VariableDutyCycle/</id>
6257.    <link href="https://leap.tardate.com/Electronics101/555Timer/VariableDutyCycle/"/>
6258.    <updated>2015-09-22T00:34:41Z</updated>
6259.    <title>#145 Variable Duty-Cycle 555 Timer</title>
6260.    <summary>a 555 oscillator circuit that allows easy manual duty cycle adjustment while minimising the change to frequency</summary>
6261.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/VariableDutyCycle/assets/VariableDutyCycle_build.jpg</g:image_link>
6262.    <category term="555 Timer"/>
6263.    <category term="Oscillators"/>
6264.  </entry>
6265.  <entry>
6266.    <id>https://leap.tardate.com/Electronics101/Oscillators/RingOscillator/</id>
6267.    <link href="https://leap.tardate.com/Electronics101/Oscillators/RingOscillator/"/>
6268.    <updated>2024-04-10T06:30:53Z</updated>
6269.    <title>#144 Ring Oscillator</title>
6270.    <summary>test a ring oscillator built with a 74LS14 Inverter chip</summary>
6271.    <g:image_link>https://leap.tardate.com/Electronics101/Oscillators/RingOscillator/assets/RingOscillator_build.jpg</g:image_link>
6272.    <category term="CMOS/TTL"/>
6273.    <category term="Oscillators"/>
6274.  </entry>
6275.  <entry>
6276.    <id>https://leap.tardate.com/Radio/AM/OpAmpTransmitter/</id>
6277.    <link href="https://leap.tardate.com/Radio/AM/OpAmpTransmitter/"/>
6278.    <updated>2019-04-05T17:26:14Z</updated>
6279.    <title>#143 OpAmp AM Transmitter</title>
6280.    <summary>simple AM transmitter with OpAmp carrier/mixer</summary>
6281.    <g:image_link>https://leap.tardate.com/Radio/AM/OpAmpTransmitter/assets/OpAmpTransmitter_build.jpg</g:image_link>
6282.    <category term="Radio"/>
6283.    <category term="OpAmp"/>
6284.  </entry>
6285.  <entry>
6286.    <id>https://leap.tardate.com/Electronics101/Oscillators/HighFrequencyOpAmpOscillators/</id>
6287.    <link href="https://leap.tardate.com/Electronics101/Oscillators/HighFrequencyOpAmpOscillators/"/>
6288.    <updated>2024-04-10T06:30:53Z</updated>
6289.    <title>#142 High-frequency OpAmp Oscillators</title>
6290.    <summary>how fast can you push an Op-Amp oscillator?</summary>
6291.    <g:image_link>https://leap.tardate.com/Electronics101/Oscillators/HighFrequencyOpAmpOscillators/assets/HighFrequencyOpAmpOscillators_build.jpg</g:image_link>
6292.    <category term="OpAmp"/>
6293.    <category term="Oscillators"/>
6294.  </entry>
6295.  <entry>
6296.    <id>https://leap.tardate.com/Electronics101/CrystalTester/</id>
6297.    <link href="https://leap.tardate.com/Electronics101/CrystalTester/"/>
6298.    <updated>2015-09-07T16:39:38Z</updated>
6299.    <title>#141 CrystalTester</title>
6300.    <summary>a Colpitts Oscillator circuit for testing crystal oscillators with a frequency counter</summary>
6301.    <g:image_link>https://leap.tardate.com/Electronics101/CrystalTester/assets/CrystalTester_build.jpg</g:image_link>
6302.    <category term="Radio"/>
6303.    <category term="Oscillators"/>
6304.  </entry>
6305.  <entry>
6306.    <id>https://leap.tardate.com/Audio/AudioEffects/ZenerModeEffects/</id>
6307.    <link href="https://leap.tardate.com/Audio/AudioEffects/ZenerModeEffects/"/>
6308.    <updated>2020-06-06T18:36:43Z</updated>
6309.    <title>#140 BJT Zener-Mode Effects</title>
6310.    <summary>playing around with some zener-mode sound effects</summary>
6311.    <g:image_link>https://leap.tardate.com/Audio/AudioEffects/ZenerModeEffects/assets/ZenerModeEffects_build.jpg</g:image_link>
6312.    <category term="Audio"/>
6313.    <category term="BJT"/>
6314.    <category term="Zener"/>
6315.    <category term="Oscillators"/>
6316.  </entry>
6317.  <entry>
6318.    <id>https://leap.tardate.com/playground/AnalogComparator/</id>
6319.    <link href="https://leap.tardate.com/playground/AnalogComparator/"/>
6320.    <updated>2015-09-03T14:52:16Z</updated>
6321.    <title>#139 Analog Comparator</title>
6322.    <summary>test the Atmega328 built-in analog comparator</summary>
6323.    <g:image_link>https://leap.tardate.com/playground/AnalogComparator/assets/AnalogComparator_build.jpg</g:image_link>
6324.    <category term="Arduino"/>
6325.    <category term="Sensor"/>
6326.    <category term="OpAmp"/>
6327.  </entry>
6328.  <entry>
6329.    <id>https://leap.tardate.com/Electronics101/BJT/Monostable/</id>
6330.    <link href="https://leap.tardate.com/Electronics101/BJT/Monostable/"/>
6331.    <updated>2018-02-13T01:35:19Z</updated>
6332.    <title>#138 BJT Monostable</title>
6333.    <summary>test a 2-transistor monostable multivibrator</summary>
6334.    <g:image_link>https://leap.tardate.com/Electronics101/BJT/Monostable/assets/Monostable_build.jpg</g:image_link>
6335.    <category term="BJT"/>
6336.    <category term="RC"/>
6337.  </entry>
6338.  <entry>
6339.    <id>https://leap.tardate.com/Electronics101/ToroidJouleThief/</id>
6340.    <link href="https://leap.tardate.com/Electronics101/ToroidJouleThief/"/>
6341.    <updated>2015-08-31T11:27:06Z</updated>
6342.    <title>#137 ToroidJouleThief</title>
6343.    <summary>test a &quot;joule thief&quot; circuit based on a ferrite toroid</summary>
6344.    <g:image_link>https://leap.tardate.com/Electronics101/ToroidJouleThief/assets/ToroidJouleThief_build.jpg</g:image_link>
6345.    <category term="Power"/>
6346.    <category term="RL"/>
6347.    <category term="Oscillators"/>
6348.  </entry>
6349.  <entry>
6350.    <id>https://leap.tardate.com/playground/CounterModule/</id>
6351.    <link href="https://leap.tardate.com/playground/CounterModule/"/>
6352.    <updated>2015-08-23T11:12:41Z</updated>
6353.    <title>#136 CounterModule</title>
6354.    <summary>a general-purpose CD4017 counter module</summary>
6355.    <g:image_link>https://leap.tardate.com/playground/CounterModule/assets/CounterModule_build.jpg</g:image_link>
6356.    <category term="CMOS"/>
6357.    <category term="Arduino"/>
6358.  </entry>
6359.  <entry>
6360.    <id>https://leap.tardate.com/Electronics101/555Timer/TouchSwitch/</id>
6361.    <link href="https://leap.tardate.com/Electronics101/555Timer/TouchSwitch/"/>
6362.    <updated>2015-08-17T16:33:53Z</updated>
6363.    <title>#135 555 Timer Touch Switch</title>
6364.    <summary>test a touch switch circuit based on a 555 timer</summary>
6365.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/TouchSwitch/assets/TouchSwitch_build.jpg</g:image_link>
6366.    <category term="555 Timer"/>
6367.  </entry>
6368.  <entry>
6369.    <id>https://leap.tardate.com/Electronics101/BidirectionalLevelShifterModule/</id>
6370.    <link href="https://leap.tardate.com/Electronics101/BidirectionalLevelShifterModule/"/>
6371.    <updated>2015-08-16T15:59:23Z</updated>
6372.    <title>#134 Bidirectional Level Shifter Module</title>
6373.    <summary>test a bi-directional 5/3.3V level shifter module</summary>
6374.    <g:image_link>https://leap.tardate.com/Electronics101/BidirectionalLevelShifterModule/assets/BidirectionalLevelShifterModule_build.jpg</g:image_link>
6375.    <category term="FET"/>
6376.  </entry>
6377.  <entry>
6378.    <id>https://leap.tardate.com/Electronics101/BidirectionalLevelShifter/</id>
6379.    <link href="https://leap.tardate.com/Electronics101/BidirectionalLevelShifter/"/>
6380.    <updated>2015-08-16T15:59:23Z</updated>
6381.    <title>#133 Bi-directional Level Shifter</title>
6382.    <summary>test a basic bi-directional 5/3.3V level shifter circuit</summary>
6383.    <g:image_link>https://leap.tardate.com/Electronics101/BidirectionalLevelShifter/assets/BidirectionalLevelShifter_build.jpg</g:image_link>
6384.    <category term="FET"/>
6385.  </entry>
6386.  <entry>
6387.    <id>https://leap.tardate.com/Electronics101/555Timer/AMTransmitter/</id>
6388.    <link href="https://leap.tardate.com/Electronics101/555Timer/AMTransmitter/"/>
6389.    <updated>2020-12-05T07:01:53Z</updated>
6390.    <title>#132 555 AM Transmitter</title>
6391.    <summary>a simple 555-based AM transmitter</summary>
6392.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/AMTransmitter/assets/AMTransmitter_build.jpg</g:image_link>
6393.    <category term="Radio"/>
6394.    <category term="555 Timer"/>
6395.  </entry>
6396.  <entry>
6397.    <id>https://leap.tardate.com/Radio/AMFMRadioKit/</id>
6398.    <link href="https://leap.tardate.com/Radio/AMFMRadioKit/"/>
6399.    <updated>2019-04-28T05:53:05Z</updated>
6400.    <title>#131 AM/FM Radio Kit</title>
6401.    <summary>build notes for an AM/FM radio kit using the CD7642 AM, CD9088 FM and TDA2822 amp chips</summary>
6402.    <g:image_link>https://leap.tardate.com/Radio/AMFMRadioKit/assets/AMFMRadioKit_build.jpg</g:image_link>
6403.    <category term="Radio"/>
6404.    <category term="AM"/>
6405.    <category term="FM"/>
6406.  </entry>
6407.  <entry>
6408.    <id>https://leap.tardate.com/Electronics101/DarlingtonTouchSwitch/</id>
6409.    <link href="https://leap.tardate.com/Electronics101/DarlingtonTouchSwitch/"/>
6410.    <updated>2015-08-15T10:31:15Z</updated>
6411.    <title>#130 Darlington Touch Switch</title>
6412.    <summary>test a Darlington-pair touch switch</summary>
6413.    <g:image_link>https://leap.tardate.com/Electronics101/DarlingtonTouchSwitch/assets/DarlingtonTouchSwitch_build.jpg</g:image_link>
6414.    <category term="Sensors"/>
6415.    <category term="BJT"/>
6416.  </entry>
6417.  <entry>
6418.    <id>https://leap.tardate.com/Electronics101/RelaxationJouleThief/</id>
6419.    <link href="https://leap.tardate.com/Electronics101/RelaxationJouleThief/"/>
6420.    <updated>2015-08-15T10:31:15Z</updated>
6421.    <title>#129 RelaxationJouleThief</title>
6422.    <summary>test a &quot;joule thief&quot; circuit based on a relaxation oscillator</summary>
6423.    <g:image_link>https://leap.tardate.com/Electronics101/RelaxationJouleThief/assets/RelaxationJouleThief_build.jpg</g:image_link>
6424.    <category term="Power"/>
6425.    <category term="RLC"/>
6426.    <category term="Oscillators"/>
6427.  </entry>
6428.  <entry>
6429.    <id>https://leap.tardate.com/playground/ATtiny/TotalSleep/</id>
6430.    <link href="https://leap.tardate.com/playground/ATtiny/TotalSleep/"/>
6431.    <updated>2018-10-21T07:22:34Z</updated>
6432.    <title>#128 ATtiny TotalSleep</title>
6433.    <summary>test a total power shutdown with an ATtiny85 processor on a breadboard</summary>
6434.    <g:image_link>https://leap.tardate.com/playground/ATtiny/TotalSleep/assets/TotalSleep_build.jpg</g:image_link>
6435.    <category term="Arduino"/>
6436.    <category term="AVR"/>
6437.  </entry>
6438.  <entry>
6439.    <id>https://leap.tardate.com/playground/ATtiny/SleepMode/</id>
6440.    <link href="https://leap.tardate.com/playground/ATtiny/SleepMode/"/>
6441.    <updated>2018-10-21T07:22:34Z</updated>
6442.    <title>#127 ATtiny SleepMode</title>
6443.    <summary>test sleep mode with an ATtiny85 processor on a breadboard</summary>
6444.    <g:image_link>https://leap.tardate.com/playground/ATtiny/SleepMode/assets/SleepMode_build.jpg</g:image_link>
6445.    <category term="Arduino"/>
6446.    <category term="AVR"/>
6447.  </entry>
6448.  <entry>
6449.    <id>https://leap.tardate.com/playground/ATtiny/HardwareInterrupt/</id>
6450.    <link href="https://leap.tardate.com/playground/ATtiny/HardwareInterrupt/"/>
6451.    <updated>2018-10-21T07:22:34Z</updated>
6452.    <title>#126 ATtiny Hardware Interrupt</title>
6453.    <summary>test hardware interrupts with an ATtiny85 processor on a breadboard</summary>
6454.    <g:image_link>https://leap.tardate.com/playground/ATtiny/HardwareInterrupt/assets/HardwareInterrupt_build.jpg</g:image_link>
6455.    <category term="Arduino"/>
6456.    <category term="AVR"/>
6457.  </entry>
6458.  <entry>
6459.    <id>https://leap.tardate.com/Audio/Visualization/VoiceLevelIndicatorKit/</id>
6460.    <link href="https://leap.tardate.com/Audio/Visualization/VoiceLevelIndicatorKit/"/>
6461.    <updated>2023-05-02T14:10:51Z</updated>
6462.    <title>#125 Voice Level Indicator Kit</title>
6463.    <summary>build and investigate a commercially available &quot;3-band voice level indicator&quot; kit</summary>
6464.    <g:image_link>https://leap.tardate.com/Audio/Visualization/VoiceLevelIndicatorKit/assets/VoiceLevelIndicatorKit_build.jpg</g:image_link>
6465.    <category term="LED"/>
6466.    <category term="Audio"/>
6467.  </entry>
6468.  <entry>
6469.    <id>https://leap.tardate.com/Electronics101/EMRDetection/RFDetectorProbe/</id>
6470.    <link href="https://leap.tardate.com/Electronics101/EMRDetection/RFDetectorProbe/"/>
6471.    <updated>2015-08-06T13:12:07Z</updated>
6472.    <title>#124 RFDetectorProbe</title>
6473.    <summary>a simple RF detector mounted in a pen</summary>
6474.    <g:image_link>https://leap.tardate.com/Electronics101/EMRDetection/RFDetectorProbe/assets/RFDetectorProbe_build.jpg</g:image_link>
6475.    <category term="Radio"/>
6476.  </entry>
6477.  <entry>
6478.    <id>https://leap.tardate.com/Radio/AM/HX6B/</id>
6479.    <link href="https://leap.tardate.com/Radio/AM/HX6B/"/>
6480.    <updated>2019-03-18T15:30:49Z</updated>
6481.    <title>#123 HX6B</title>
6482.    <summary>build and analyse the HX-6B superheterodyne AM MW radio receiver kit</summary>
6483.    <g:image_link>https://leap.tardate.com/Radio/AM/HX6B/assets/HX6B_build.jpg</g:image_link>
6484.    <category term="Radio"/>
6485.    <category term="AM"/>
6486.  </entry>
6487.  <entry>
6488.    <id>https://leap.tardate.com/Electronics101/OpAmpTimer/</id>
6489.    <link href="https://leap.tardate.com/Electronics101/OpAmpTimer/"/>
6490.    <updated>2015-08-01T08:29:59Z</updated>
6491.    <title>#122 Op-amp Timer</title>
6492.    <summary>testing an op-amp timer switch</summary>
6493.    <g:image_link>https://leap.tardate.com/Electronics101/OpAmpTimer/assets/OpAmpTimer_build.jpg</g:image_link>
6494.    <category term="OpAmp"/>
6495.    <category term="Timer"/>
6496.  </entry>
6497.  <entry>
6498.    <id>https://leap.tardate.com/Electronics101/Detectors/PeakDetector/</id>
6499.    <link href="https://leap.tardate.com/Electronics101/Detectors/PeakDetector/"/>
6500.    <updated>2020-03-31T15:20:15Z</updated>
6501.    <title>#121 Peak Detector</title>
6502.    <summary>test an OpAmp-based peak detector circuit</summary>
6503.    <g:image_link>https://leap.tardate.com/Electronics101/Detectors/PeakDetector/assets/PeakDetector_build.jpg</g:image_link>
6504.    <category term="OpAmp"/>
6505.    <category term="RC"/>
6506.  </entry>
6507.  <entry>
6508.    <id>https://leap.tardate.com/Electronics101/Detectors/SimplePeakDetector/</id>
6509.    <link href="https://leap.tardate.com/Electronics101/Detectors/SimplePeakDetector/"/>
6510.    <updated>2020-03-31T15:20:15Z</updated>
6511.    <title>#120 Simple Peak Detector</title>
6512.    <summary>test the basic diode-RC peak detector circuit</summary>
6513.    <g:image_link>https://leap.tardate.com/Electronics101/Detectors/SimplePeakDetector/assets/SimplePeakDetector_build.jpg</g:image_link>
6514.    <category term="RC"/>
6515.  </entry>
6516.  <entry>
6517.    <id>https://leap.tardate.com/playground/RotaryEncoderModule/</id>
6518.    <link href="https://leap.tardate.com/playground/RotaryEncoderModule/"/>
6519.    <updated>2015-07-26T08:35:52Z</updated>
6520.    <title>#119 RotaryEncoderModule</title>
6521.    <summary>testing a Rotary Encoder module controlling an LED 8x8 display</summary>
6522.    <g:image_link>https://leap.tardate.com/playground/RotaryEncoderModule/assets/RotaryEncoderModule_build.jpg</g:image_link>
6523.    <category term="Sensor"/>
6524.    <category term="8x8 LED"/>
6525.    <category term="Arduino"/>
6526.  </entry>
6527.  <entry>
6528.    <id>https://leap.tardate.com/playground/RotaryEncoderMethods/</id>
6529.    <link href="https://leap.tardate.com/playground/RotaryEncoderMethods/"/>
6530.    <updated>2015-07-26T08:35:52Z</updated>
6531.    <title>#118 RotaryEncoderMethods</title>
6532.    <summary>finding the best method for reading a rotary-encoder</summary>
6533.    <g:image_link>https://leap.tardate.com/playground/RotaryEncoderMethods/assets/RotaryEncoderMethods_build.jpg</g:image_link>
6534.    <category term="Sensor"/>
6535.    <category term="Arduino"/>
6536.  </entry>
6537.  <entry>
6538.    <id>https://leap.tardate.com/Kinetics/Solenoids/SolenoidDIY/</id>
6539.    <link href="https://leap.tardate.com/Kinetics/Solenoids/SolenoidDIY/"/>
6540.    <updated>2019-08-19T14:38:51Z</updated>
6541.    <title>#117 Solenoid DIY</title>
6542.    <summary>build and test a basic electromechanical solenoid</summary>
6543.    <g:image_link>https://leap.tardate.com/Kinetics/Solenoids/SolenoidDIY/assets/SolenoidDIY_build.jpg</g:image_link>
6544.    <category term="Solenoid"/>
6545.    <category term="Arduino"/>
6546.  </entry>
6547.  <entry>
6548.    <id>https://leap.tardate.com/Electronics101/SwitchNJFET/</id>
6549.    <link href="https://leap.tardate.com/Electronics101/SwitchNJFET/"/>
6550.    <updated>2015-07-14T13:59:06Z</updated>
6551.    <title>#116 Switch - NJFET</title>
6552.    <summary>switch an independent power source using an Arduino and n-channel JFET</summary>
6553.    <g:image_link>https://leap.tardate.com/Electronics101/SwitchNJFET/assets/SwitchNJFET_build.jpg</g:image_link>
6554.    <category term="JFET"/>
6555.    <category term="Arduino"/>
6556.  </entry>
6557.  <entry>
6558.    <id>https://leap.tardate.com/playground/R2RDAC/</id>
6559.    <link href="https://leap.tardate.com/playground/R2RDAC/"/>
6560.    <updated>2015-07-11T09:36:53Z</updated>
6561.    <title>#115 R2RDAC</title>
6562.    <summary>build and test a 16-bit R2R-ladder digital to analog converter with shift register interface</summary>
6563.    <g:image_link>https://leap.tardate.com/playground/R2RDAC/assets/R2RDAC_build.jpg</g:image_link>
6564.    <category term="Arduino"/>
6565.  </entry>
6566.  <entry>
6567.    <id>https://leap.tardate.com/Electronics101/Oscillators/NORGateOscillator/</id>
6568.    <link href="https://leap.tardate.com/Electronics101/Oscillators/NORGateOscillator/"/>
6569.    <updated>2023-05-02T14:10:52Z</updated>
6570.    <title>#114 NOR Gate Oscillator</title>
6571.    <summary>test a low-speed square wave oscillator using NOR gates</summary>
6572.    <g:image_link>https://leap.tardate.com/Electronics101/Oscillators/NORGateOscillator/assets/NORGateOscillator_build.jpg</g:image_link>
6573.    <category term="CMOS/TTL"/>
6574.    <category term="Oscillators"/>
6575.    <category term="Arduino"/>
6576.  </entry>
6577.  <entry>
6578.    <id>https://leap.tardate.com/Electronics101/TTLBufferDriver/</id>
6579.    <link href="https://leap.tardate.com/Electronics101/TTLBufferDriver/"/>
6580.    <updated>2015-07-11T09:36:53Z</updated>
6581.    <title>#113 TTLBufferDriver</title>
6582.    <summary>using an OpAmp as a final buffer stage for TTL or similar circuits</summary>
6583.    <g:image_link>https://leap.tardate.com/Electronics101/TTLBufferDriver/assets/TTLBufferDriver_build.jpg</g:image_link>
6584.    <category term="OpAmp"/>
6585.    <category term="TTL"/>
6586.  </entry>
6587.  <entry>
6588.    <id>https://leap.tardate.com/Electronics101/ResistorTransistorLogic/OR/</id>
6589.    <link href="https://leap.tardate.com/Electronics101/ResistorTransistorLogic/OR/"/>
6590.    <updated>2015-07-06T10:56:17Z</updated>
6591.    <title>#112 OR Gate with Resistor-Transistor Logic</title>
6592.    <summary>test the basic resistor-transistor logic OR gate</summary>
6593.    <g:image_link>https://leap.tardate.com/Electronics101/ResistorTransistorLogic/OR/assets/OR_build.jpg</g:image_link>
6594.    <category term="BJT"/>
6595.    <category term="RTL"/>
6596.    <category term="Digital Logic"/>
6597.  </entry>
6598.  <entry>
6599.    <id>https://leap.tardate.com/Electronics101/ResistorTransistorLogic/NOR/</id>
6600.    <link href="https://leap.tardate.com/Electronics101/ResistorTransistorLogic/NOR/"/>
6601.    <updated>2015-07-06T10:56:17Z</updated>
6602.    <title>#111 NOR Gate with Resistor-Transistor Logic</title>
6603.    <summary>test the basic resistor-transistor logic NOR gate </summary>
6604.    <g:image_link>https://leap.tardate.com/Electronics101/ResistorTransistorLogic/NOR/assets/NOR_build.jpg</g:image_link>
6605.    <category term="BJT"/>
6606.    <category term="RTL"/>
6607.    <category term="Digital Logic"/>
6608.  </entry>
6609.  <entry>
6610.    <id>https://leap.tardate.com/Electronics101/DiodeLogic/AND/</id>
6611.    <link href="https://leap.tardate.com/Electronics101/DiodeLogic/AND/"/>
6612.    <updated>2015-07-06T10:56:17Z</updated>
6613.    <title>#110 AND Gate with Diode Logic</title>
6614.    <summary>test the basic diode-logic AND gate</summary>
6615.    <g:image_link>https://leap.tardate.com/Electronics101/DiodeLogic/AND/assets/AND_build.jpg</g:image_link>
6616.    <category term="Diode"/>
6617.    <category term="Digital Logic"/>
6618.  </entry>
6619.  <entry>
6620.    <id>https://leap.tardate.com/Electronics101/DiodeLogic/OR/</id>
6621.    <link href="https://leap.tardate.com/Electronics101/DiodeLogic/OR/"/>
6622.    <updated>2015-07-06T10:56:17Z</updated>
6623.    <title>#109 OR Gate with Diode Logic</title>
6624.    <summary>test the basic diode-logic OR gate</summary>
6625.    <g:image_link>https://leap.tardate.com/Electronics101/DiodeLogic/OR/assets/OR_build.jpg</g:image_link>
6626.    <category term="Diode"/>
6627.    <category term="Digital Logic"/>
6628.  </entry>
6629.  <entry>
6630.    <id>https://leap.tardate.com/playground/RingCounterController/</id>
6631.    <link href="https://leap.tardate.com/playground/RingCounterController/"/>
6632.    <updated>2020-03-14T16:56:38Z</updated>
6633.    <title>#108 RingCounterController</title>
6634.    <summary>control the classic CD4017 walking-ring counter with an Arduino</summary>
6635.    <g:image_link>https://leap.tardate.com/playground/RingCounterController/assets/RingCounterController_build.jpg</g:image_link>
6636.    <category term="CMOS"/>
6637.    <category term="Arduino"/>
6638.  </entry>
6639.  <entry>
6640.    <id>https://leap.tardate.com/Electronics101/RingCounter/</id>
6641.    <link href="https://leap.tardate.com/Electronics101/RingCounter/"/>
6642.    <updated>2015-07-06T10:56:17Z</updated>
6643.    <title>#107 RingCounter</title>
6644.    <summary>test the classic CD4017 walking-ring counter</summary>
6645.    <g:image_link>https://leap.tardate.com/Electronics101/RingCounter/assets/RingCounter_build.jpg</g:image_link>
6646.    <category term="CMOS"/>
6647.    <category term="555 Timer"/>
6648.  </entry>
6649.  <entry>
6650.    <id>https://leap.tardate.com/Electronics101/SwitchPFET/</id>
6651.    <link href="https://leap.tardate.com/Electronics101/SwitchPFET/"/>
6652.    <updated>2020-03-14T16:56:38Z</updated>
6653.    <title>#106 PFET Switch with Delay</title>
6654.    <summary>small-signal p-channel MOSFET switch with turn-on delay</summary>
6655.    <g:image_link>https://leap.tardate.com/Electronics101/SwitchPFET/assets/SwitchPFET_build.jpg</g:image_link>
6656.    <category term="MOSFET"/>
6657.  </entry>
6658.  <entry>
6659.    <id>https://leap.tardate.com/Electronics101/BJT/SawTooth/</id>
6660.    <link href="https://leap.tardate.com/Electronics101/BJT/SawTooth/"/>
6661.    <updated>2018-01-26T03:08:43Z</updated>
6662.    <title>#105 BJT SawTooth</title>
6663.    <summary>testing a simple BJT saw-tooth oscillator</summary>
6664.    <g:image_link>https://leap.tardate.com/Electronics101/BJT/SawTooth/assets/SawTooth_build.jpg</g:image_link>
6665.    <category term="BJT"/>
6666.    <category term="Oscillators"/>
6667.  </entry>
6668.  <entry>
6669.    <id>https://leap.tardate.com/Audio/AudioAmps/Ruby/</id>
6670.    <link href="https://leap.tardate.com/Audio/AudioAmps/Ruby/"/>
6671.    <updated>2020-06-06T18:36:43Z</updated>
6672.    <title>#104 Ruby Guitar Amp</title>
6673.    <summary>a version of the runoffgroove Ruby LM386 guitar amp</summary>
6674.    <g:image_link>https://leap.tardate.com/Audio/AudioAmps/Ruby/assets/Ruby_build.jpg</g:image_link>
6675.    <category term="OpAmp"/>
6676.    <category term="Audio"/>
6677.  </entry>
6678.  <entry>
6679.    <id>https://leap.tardate.com/playground/LED8x8/LedControlDemo/</id>
6680.    <link href="https://leap.tardate.com/playground/LED8x8/LedControlDemo/"/>
6681.    <updated>2019-05-05T11:19:13Z</updated>
6682.    <title>#103  8x8 LED Matrix LedControl</title>
6683.    <summary>test driving and LED matrix with the LedControl library</summary>
6684.    <g:image_link>https://leap.tardate.com/playground/LED8x8/LedControlDemo/assets/LedControlDemo_build.jpg</g:image_link>
6685.    <category term="8x8 LED"/>
6686.    <category term="Arduino"/>
6687.  </entry>
6688.  <entry>
6689.    <id>https://leap.tardate.com/playground/SolenoidControl/</id>
6690.    <link href="https://leap.tardate.com/playground/SolenoidControl/"/>
6691.    <updated>2015-06-24T13:12:05Z</updated>
6692.    <title>#102 SolenoidControl</title>
6693.    <summary>controlling a mini solenoid with an Arduino</summary>
6694.    <g:image_link>https://leap.tardate.com/playground/SolenoidControl/assets/SolenoidControl_build.jpg</g:image_link>
6695.    <category term="Solenoid"/>
6696.    <category term="Arduino"/>
6697.  </entry>
6698.  <entry>
6699.    <id>https://leap.tardate.com/playground/LED8x8/MaxRawDemo/</id>
6700.    <link href="https://leap.tardate.com/playground/LED8x8/MaxRawDemo/"/>
6701.    <updated>2019-05-05T11:19:13Z</updated>
6702.    <title>#101 8x8 LED Matrix Raw Drive</title>
6703.    <summary>drive an 8x8 LED Matrix with a MAX7219 chip and raw SPI commands</summary>
6704.    <g:image_link>https://leap.tardate.com/playground/LED8x8/MaxRawDemo/assets/MaxRawDemo_build.jpg</g:image_link>
6705.    <category term="8x8 LED"/>
6706.    <category term="Arduino"/>
6707.  </entry>
6708.  <entry>
6709.    <id>https://leap.tardate.com/playground/OLED/ArdWinVaders/</id>
6710.    <link href="https://leap.tardate.com/playground/OLED/ArdWinVaders/"/>
6711.    <updated>2015-06-30T13:49:11Z</updated>
6712.    <title>#100 ArdWinVaders</title>
6713.    <summary>an Arduino &amp; OLED version of a classic game</summary>
6714.    <g:image_link>https://leap.tardate.com/playground/OLED/ArdWinVaders/assets/ArdWinVaders_build.jpg</g:image_link>
6715.    <category term="Arduino"/>
6716.    <category term="OLED"/>
6717.  </entry>
6718.  <entry>
6719.    <id>https://leap.tardate.com/playground/ATmegaISPShield/</id>
6720.    <link href="https://leap.tardate.com/playground/ATmegaISPShield/"/>
6721.    <updated>2015-06-15T11:47:35Z</updated>
6722.    <title>#099 ATmegaISPShield</title>
6723.    <summary>a DIY ATmega programming shield for using an Arduino as ISP </summary>
6724.    <g:image_link>https://leap.tardate.com/playground/ATmegaISPShield/assets/ATmegaISPShield_build.jpg</g:image_link>
6725.    <category term="Arduino"/>
6726.    <category term="ATmel"/>
6727.    <category term="ICSP"/>
6728.  </entry>
6729.  <entry>
6730.    <id>https://leap.tardate.com/Audio/AudioAmps/GuitarHeadphoneAmp/</id>
6731.    <link href="https://leap.tardate.com/Audio/AudioAmps/GuitarHeadphoneAmp/"/>
6732.    <updated>2020-06-06T18:36:42Z</updated>
6733.    <title>#098 Guitar Headphone Amp</title>
6734.    <summary>an LM386 fixed-gain guitar headphone amp</summary>
6735.    <g:image_link>https://leap.tardate.com/Audio/AudioAmps/GuitarHeadphoneAmp/assets/GuitarHeadphoneAmp_build.jpg</g:image_link>
6736.    <category term="OpAmp"/>
6737.    <category term="Audio"/>
6738.  </entry>
6739.  <entry>
6740.    <id>https://leap.tardate.com/Audio/AudioAmps/VolumeControlPowerAmp/</id>
6741.    <link href="https://leap.tardate.com/Audio/AudioAmps/VolumeControlPowerAmp/"/>
6742.    <updated>2020-06-06T18:36:43Z</updated>
6743.    <title>#097 Volume Control Power Amp</title>
6744.    <summary>an LM386 fixed-gain audio power amp with volume control</summary>
6745.    <g:image_link>https://leap.tardate.com/Audio/AudioAmps/VolumeControlPowerAmp/assets/VolumeControlPowerAmp_build.jpg</g:image_link>
6746.    <category term="OpAmp"/>
6747.    <category term="Audio"/>
6748.  </entry>
6749.  <entry>
6750.    <id>https://leap.tardate.com/Audio/AudioAmps/Smokey/</id>
6751.    <link href="https://leap.tardate.com/Audio/AudioAmps/Smokey/"/>
6752.    <updated>2020-06-06T18:36:43Z</updated>
6753.    <title>#096 Smokey</title>
6754.    <summary>quick build of a Smokey-like LM386 guitar power amp</summary>
6755.    <g:image_link>https://leap.tardate.com/Audio/AudioAmps/Smokey/assets/Smokey_build.jpg</g:image_link>
6756.    <category term="Amp"/>
6757.    <category term="Audio"/>
6758.  </entry>
6759.  <entry>
6760.    <id>https://leap.tardate.com/Audio/AudioAmps/LittleGem/</id>
6761.    <link href="https://leap.tardate.com/Audio/AudioAmps/LittleGem/"/>
6762.    <updated>2020-06-06T18:36:43Z</updated>
6763.    <title>#095 Little Gem</title>
6764.    <summary>a basic Smokey-inspired LM386 guitar power amp</summary>
6765.    <g:image_link>https://leap.tardate.com/Audio/AudioAmps/LittleGem/assets/LittleGem_build.jpg</g:image_link>
6766.    <category term="OpAmp"/>
6767.    <category term="Audio"/>
6768.  </entry>
6769.  <entry>
6770.    <id>https://leap.tardate.com/Electronics101/BJT/LongTailPair/</id>
6771.    <link href="https://leap.tardate.com/Electronics101/BJT/LongTailPair/"/>
6772.    <updated>2018-02-13T01:35:19Z</updated>
6773.    <title>#094 BJT LongTail Pair</title>
6774.    <summary>test the basic BJT &quot;long-tail&quot; differential amplifier circuit</summary>
6775.    <g:image_link>https://leap.tardate.com/Electronics101/BJT/LongTailPair/assets/LongTailPair_build.jpg</g:image_link>
6776.    <category term="BJT"/>
6777.    <category term="OpAmp"/>
6778.  </entry>
6779.  <entry>
6780.    <id>https://leap.tardate.com/Electronics101/BJT/CurrentSink/</id>
6781.    <link href="https://leap.tardate.com/Electronics101/BJT/CurrentSink/"/>
6782.    <updated>2020-03-14T16:56:38Z</updated>
6783.    <title>#093 BJT CurrentSink</title>
6784.    <summary>test a BJT constant current sink circuit</summary>
6785.    <g:image_link>https://leap.tardate.com/Electronics101/BJT/CurrentSink/assets/CurrentSink_build.jpg</g:image_link>
6786.    <category term="BJT"/>
6787.    <category term="Power"/>
6788.  </entry>
6789.  <entry>
6790.    <id>https://leap.tardate.com/Electronics101/Power/LinearRegulators/LM317CC/</id>
6791.    <link href="https://leap.tardate.com/Electronics101/Power/LinearRegulators/LM317CC/"/>
6792.    <updated>2024-04-10T06:30:53Z</updated>
6793.    <title>#092 LM317 Constant Current Power Supply</title>
6794.    <summary>test a constant current power supply built with the LM317</summary>
6795.    <g:image_link>https://leap.tardate.com/Electronics101/Power/LinearRegulators/LM317CC/assets/LM317CC_build.jpg</g:image_link>
6796.    <category term="Power"/>
6797.  </entry>
6798.  <entry>
6799.    <id>https://leap.tardate.com/Electronics101/SwitchPJFET/</id>
6800.    <link href="https://leap.tardate.com/Electronics101/SwitchPJFET/"/>
6801.    <updated>2015-06-09T17:18:46Z</updated>
6802.    <title>#091 Switch - PJFET</title>
6803.    <summary>switch an independent power source using an Arduino and p-channel JFET</summary>
6804.    <g:image_link>https://leap.tardate.com/Electronics101/SwitchPJFET/assets/SwitchPJFET_build.jpg</g:image_link>
6805.    <category term="JFET"/>
6806.    <category term="Arduino"/>
6807.  </entry>
6808.  <entry>
6809.    <id>https://leap.tardate.com/playground/PlotNValues/</id>
6810.    <link href="https://leap.tardate.com/playground/PlotNValues/"/>
6811.    <updated>2016-06-23T14:50:15Z</updated>
6812.    <title>#090 PlotNValues</title>
6813.    <summary>generic script to sample up to 6 analog inputs and stream the data to serial in ASCII format for plotting with Processing</summary>
6814.    <g:image_link>https://leap.tardate.com/playground/PlotNValues/assets/PlotNValues_build.jpg</g:image_link>
6815.    <category term="Arduino"/>
6816.    <category term="Processing"/>
6817.  </entry>
6818.  <entry>
6819.    <id>https://leap.tardate.com/Electronics101/BreatheLamp/</id>
6820.    <link href="https://leap.tardate.com/Electronics101/BreatheLamp/"/>
6821.    <updated>2015-06-04T13:47:47Z</updated>
6822.    <title>#089 BreatheLamp</title>
6823.    <summary>build and test a common LED visual effect circuit</summary>
6824.    <g:image_link>https://leap.tardate.com/Electronics101/BreatheLamp/assets/BreatheLamp_build.jpg</g:image_link>
6825.    <category term="OpAmp"/>
6826.    <category term="LED"/>
6827.  </entry>
6828.  <entry>
6829.    <id>https://leap.tardate.com/8051/ElectronicClockKit/</id>
6830.    <link href="https://leap.tardate.com/8051/ElectronicClockKit/"/>
6831.    <updated>2023-05-02T14:10:51Z</updated>
6832.    <title>#088 Electronic Clock Kit</title>
6833.    <summary>build and investigate a commercially available &quot;electronic clock&quot; kit</summary>
6834.    <g:image_link>https://leap.tardate.com/8051/ElectronicClockKit/assets/ElectronicClockKit_build.jpg</g:image_link>
6835.    <category term="LCD"/>
6836.    <category term="8051"/>
6837.  </entry>
6838.  <entry>
6839.    <id>https://leap.tardate.com/playground/OLED/SSD1306BareBack/</id>
6840.    <link href="https://leap.tardate.com/playground/OLED/SSD1306BareBack/"/>
6841.    <updated>2015-06-04T13:47:48Z</updated>
6842.    <title>#087 SSD1306 OLED Bareback SPI</title>
6843.    <summary>driving a monochrome 128x64 OLED Display with an Arduino and the raw command set over SPI</summary>
6844.    <g:image_link>https://leap.tardate.com/playground/OLED/SSD1306BareBack/assets/SSD1306BareBack_build.jpg</g:image_link>
6845.    <category term="OLED"/>
6846.    <category term="Arduino"/>
6847.  </entry>
6848.  <entry>
6849.    <id>https://leap.tardate.com/playground/OLED/SSD1306WithAdaFruitLibraries/</id>
6850.    <link href="https://leap.tardate.com/playground/OLED/SSD1306WithAdaFruitLibraries/"/>
6851.    <updated>2015-06-04T13:47:48Z</updated>
6852.    <title>#086 SSD1306 OLED With AdaFruit Libraries</title>
6853.    <summary>running the AdaFruit example program with a monochrome 128x64 OLED Display</summary>
6854.    <g:image_link>https://leap.tardate.com/playground/OLED/SSD1306WithAdaFruitLibraries/assets/SSD1306WithAdaFruitLibraries_build.jpg</g:image_link>
6855.    <category term="OLED"/>
6856.    <category term="Arduino"/>
6857.  </entry>
6858.  <entry>
6859.    <id>https://leap.tardate.com/playground/Lcd5110/BareBack/</id>
6860.    <link href="https://leap.tardate.com/playground/Lcd5110/BareBack/"/>
6861.    <updated>2020-03-14T16:56:38Z</updated>
6862.    <title>#085 Lcd5110/BareBack</title>
6863.    <summary>driving a Nokia 5110 LCD Display with an Arduino and the raw command set</summary>
6864.    <g:image_link>https://leap.tardate.com/playground/Lcd5110/BareBack/assets/BareBack_build.jpg</g:image_link>
6865.    <category term="LCD"/>
6866.    <category term="Arduino"/>
6867.  </entry>
6868.  <entry>
6869.    <id>https://leap.tardate.com/Electronics101/555Timer/RouletteKit/</id>
6870.    <link href="https://leap.tardate.com/Electronics101/555Timer/RouletteKit/"/>
6871.    <updated>2015-06-04T13:47:47Z</updated>
6872.    <title>#084 RouletteKit</title>
6873.    <summary>build and examine the workings of a commercial 555 Roulette kit</summary>
6874.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/RouletteKit/assets/RouletteKit_build.jpg</g:image_link>
6875.    <category term="555 Timer"/>
6876.  </entry>
6877.  <entry>
6878.    <id>https://leap.tardate.com/Electronics101/TransistorTester/</id>
6879.    <link href="https://leap.tardate.com/Electronics101/TransistorTester/"/>
6880.    <updated>2015-06-04T13:47:48Z</updated>
6881.    <title>#083 Transistor Tester</title>
6882.    <summary>use an Arduino to test NPN and PNP BJTs</summary>
6883.    <g:image_link>https://leap.tardate.com/Electronics101/TransistorTester/assets/TransistorTester_build.jpg</g:image_link>
6884.    <category term="Arduino"/>
6885.    <category term="BJT"/>
6886.  </entry>
6887.  <entry>
6888.    <id>https://leap.tardate.com/Electronics101/EMRDetection/MobileRFDetectorKit/</id>
6889.    <link href="https://leap.tardate.com/Electronics101/EMRDetection/MobileRFDetectorKit/"/>
6890.    <updated>2015-06-04T13:47:47Z</updated>
6891.    <title>#082 MobileRFDetectorKit</title>
6892.    <summary>build and investigate a commercially available &quot;mobile phone signal&quot; detector kit</summary>
6893.    <g:image_link>https://leap.tardate.com/Electronics101/EMRDetection/MobileRFDetectorKit/assets/MobileRFDetectorKit_build.jpg</g:image_link>
6894.    <category term="Radio"/>
6895.  </entry>
6896.  <entry>
6897.    <id>https://leap.tardate.com/playground/Led4Digit7Segment/DoubleShiftWithFETs/</id>
6898.    <link href="https://leap.tardate.com/playground/Led4Digit7Segment/DoubleShiftWithFETs/"/>
6899.    <updated>2015-06-04T13:47:48Z</updated>
6900.    <title>#081 4x7-Segment Double Shift With FETs</title>
6901.    <summary>driving a 4-Digit 7-Segment LED display with only 3 pins, using two 74HC595 shift registers and some n-channel FETs</summary>
6902.    <g:image_link>https://leap.tardate.com/playground/Led4Digit7Segment/DoubleShiftWithFETs/assets/DoubleShiftWithFETs_build.jpg</g:image_link>
6903.    <category term="LED"/>
6904.    <category term="7-Segment"/>
6905.    <category term="CMOS/TTL"/>
6906.    <category term="Arduino"/>
6907.  </entry>
6908.  <entry>
6909.    <id>https://leap.tardate.com/playground/Led4Digit7Segment/DoubleShift/</id>
6910.    <link href="https://leap.tardate.com/playground/Led4Digit7Segment/DoubleShift/"/>
6911.    <updated>2015-06-04T13:47:48Z</updated>
6912.    <title>#080 4x7-Segment Double Shift</title>
6913.    <summary>driving a 4-Digit 7-Segment LED display with only 3 pins, using two 74HC595 shift registers and some NPN BJTs</summary>
6914.    <g:image_link>https://leap.tardate.com/playground/Led4Digit7Segment/DoubleShift/assets/DoubleShift_build.jpg</g:image_link>
6915.    <category term="LED"/>
6916.    <category term="7-Segment"/>
6917.    <category term="CMOS/TTL"/>
6918.    <category term="Arduino"/>
6919.  </entry>
6920.  <entry>
6921.    <id>https://leap.tardate.com/playground/LedTemperatureDisplay/</id>
6922.    <link href="https://leap.tardate.com/playground/LedTemperatureDisplay/"/>
6923.    <updated>2015-06-04T13:47:48Z</updated>
6924.    <title>#079 7-Segment Temperature Display</title>
6925.    <summary>Measure ambient temperature with an LM35 and display with a 4-digit 7-segment LED unit</summary>
6926.    <g:image_link>https://leap.tardate.com/playground/LedTemperatureDisplay/assets/LedTemperatureDisplay_build.jpg</g:image_link>
6927.    <category term="Sensors"/>
6928.    <category term="LM35"/>
6929.    <category term="7-Segment"/>
6930.    <category term="Arduino"/>
6931.  </entry>
6932.  <entry>
6933.    <id>https://leap.tardate.com/playground/Led4Digit7Segment/SingleShift/</id>
6934.    <link href="https://leap.tardate.com/playground/Led4Digit7Segment/SingleShift/"/>
6935.    <updated>2015-06-04T13:47:48Z</updated>
6936.    <title>#078 4x7-Segment Single Shift</title>
6937.    <summary>driving a 4-digit 7-segment LED display with a shift register and a few BJTs</summary>
6938.    <g:image_link>https://leap.tardate.com/playground/Led4Digit7Segment/SingleShift/assets/SingleShift_build.jpg</g:image_link>
6939.    <category term="LED 7-Segment"/>
6940.    <category term="CMOS/TTL"/>
6941.    <category term="Arduino"/>
6942.  </entry>
6943.  <entry>
6944.    <id>https://leap.tardate.com/Electronics101/DigitalLogic/SRLatchWithNorGates/</id>
6945.    <link href="https://leap.tardate.com/Electronics101/DigitalLogic/SRLatchWithNorGates/"/>
6946.    <updated>2017-04-30T06:29:37Z</updated>
6947.    <title>#077 NOR Gate SR Latch</title>
6948.    <summary>Set-Reset latch implemented with NOR gates</summary>
6949.    <g:image_link>https://leap.tardate.com/Electronics101/DigitalLogic/SRLatchWithNorGates/assets/SRLatchWithNorGates_build.jpg</g:image_link>
6950.    <category term="Digital Logic"/>
6951.    <category term="CMOS/TTL"/>
6952.  </entry>
6953.  <entry>
6954.    <id>https://leap.tardate.com/playground/MonostablePulseExtender/</id>
6955.    <link href="https://leap.tardate.com/playground/MonostablePulseExtender/"/>
6956.    <updated>2015-06-04T13:47:48Z</updated>
6957.    <title>#076 Monostable Pulse Extender</title>
6958.    <summary>test the behaviour of a 74LS122 monostable with external timing configuration and plot the results with an Arduino</summary>
6959.    <g:image_link>https://leap.tardate.com/playground/MonostablePulseExtender/assets/MonostablePulseExtender_build.jpg</g:image_link>
6960.    <category term="CMOS/TTL"/>
6961.    <category term="Arduino"/>
6962.  </entry>
6963.  <entry>
6964.    <id>https://leap.tardate.com/Electronics101/Monostable122/</id>
6965.    <link href="https://leap.tardate.com/Electronics101/Monostable122/"/>
6966.    <updated>2015-06-04T13:47:48Z</updated>
6967.    <title>#075 Monostable 74LS122</title>
6968.    <summary>simple pulse trigger using 74LS122 monostable with external timing configuration</summary>
6969.    <g:image_link>https://leap.tardate.com/Electronics101/Monostable122/assets/Monostable122_build.jpg</g:image_link>
6970.    <category term="CMOS/TTL"/>
6971.  </entry>
6972.  <entry>
6973.    <id>https://leap.tardate.com/playground/IR/TestIR/</id>
6974.    <link href="https://leap.tardate.com/playground/IR/TestIR/"/>
6975.    <updated>2022-02-22T14:48:48Z</updated>
6976.    <title>#074 Raw Arduino Infrared</title>
6977.    <summary>test raw IR reception with a TSOP1838-type IR sensor and an Arduino</summary>
6978.    <g:image_link>https://leap.tardate.com/playground/IR/TestIR/assets/TestIR_build.jpg</g:image_link>
6979.    <category term="IR"/>
6980.    <category term="Arduino"/>
6981.  </entry>
6982.  <entry>
6983.    <id>https://leap.tardate.com/Electronics101/QuadNOR/</id>
6984.    <link href="https://leap.tardate.com/Electronics101/QuadNOR/"/>
6985.    <updated>2015-06-04T13:47:48Z</updated>
6986.    <title>#073 QuadNOR</title>
6987.    <summary>demo simple cascading NOR gate logic with the 74LS02 and an Arduino</summary>
6988.    <g:image_link>https://leap.tardate.com/Electronics101/QuadNOR/assets/QuadNOR_build.jpg</g:image_link>
6989.    <category term="CMOS/TTL"/>
6990.    <category term="Arduino"/>
6991.  </entry>
6992.  <entry>
6993.    <id>https://leap.tardate.com/Electronics101/NOR7402/</id>
6994.    <link href="https://leap.tardate.com/Electronics101/NOR7402/"/>
6995.    <updated>2015-06-04T13:47:48Z</updated>
6996.    <title>#072 NOR7402</title>
6997.    <summary>demo the 74LS02 Quad 2-input NOR gate with an Arduino</summary>
6998.    <g:image_link>https://leap.tardate.com/Electronics101/NOR7402/assets/NOR7402_build.jpg</g:image_link>
6999.    <category term="CMOS/TTL"/>
7000.    <category term="Arduino"/>
7001.  </entry>
7002.  <entry>
7003.    <id>https://leap.tardate.com/playground/ATtiny/TinyBlink/</id>
7004.    <link href="https://leap.tardate.com/playground/ATtiny/TinyBlink/"/>
7005.    <updated>2020-01-15T16:25:24Z</updated>
7006.    <title>#071 TinyBlink</title>
7007.    <summary>a simple blink sketch with an ATTINY85-20PU on a breadboard</summary>
7008.    <g:image_link>https://leap.tardate.com/playground/ATtiny/TinyBlink/assets/TinyBlink_build.jpg</g:image_link>
7009.    <category term="Arduino"/>
7010.    <category term="AVR"/>
7011.  </entry>
7012.  <entry>
7013.    <id>https://leap.tardate.com/playground/ATtiny/ProgrammingWithArduinoISP/</id>
7014.    <link href="https://leap.tardate.com/playground/ATtiny/ProgrammingWithArduinoISP/"/>
7015.    <updated>2018-10-21T07:22:34Z</updated>
7016.    <title>#070 ATtiny Programming over ArduinoISP</title>
7017.    <summary>programming an ATTINY85-20PU on a breadboard with Arduino ISP</summary>
7018.    <g:image_link>https://leap.tardate.com/playground/ATtiny/ProgrammingWithArduinoISP/assets/ProgrammingWithArduinoISP_build.jpg</g:image_link>
7019.    <category term="Arduino"/>
7020.    <category term="AVR"/>
7021.    <category term="ICSP"/>
7022.  </entry>
7023.  <entry>
7024.    <id>https://leap.tardate.com/playground/ATmegaBreadboard/</id>
7025.    <link href="https://leap.tardate.com/playground/ATmegaBreadboard/"/>
7026.    <updated>2015-06-04T13:47:48Z</updated>
7027.    <title>#069 ATmegaBreadboard</title>
7028.    <summary>running an ATMEGA328P-PU on a breadboard </summary>
7029.    <g:image_link>https://leap.tardate.com/playground/ATmegaBreadboard/assets/ATmegaBreadboard_build.jpg</g:image_link>
7030.    <category term="Arduino"/>
7031.    <category term="ATmel"/>
7032.  </entry>
7033.  <entry>
7034.    <id>https://leap.tardate.com/playground/ATmegaViaArduinoISP/</id>
7035.    <link href="https://leap.tardate.com/playground/ATmegaViaArduinoISP/"/>
7036.    <updated>2015-06-04T13:47:48Z</updated>
7037.    <title>#068 ATmegaViaArduinoISP</title>
7038.    <summary>Programming an ATMEGA328P-PU on a breadboard with Arduino ISP</summary>
7039.    <g:image_link>https://leap.tardate.com/playground/ATmegaViaArduinoISP/assets/ATmegaViaArduinoISP_build.jpg</g:image_link>
7040.    <category term="Arduino"/>
7041.    <category term="ATmel"/>
7042.    <category term="ICSP"/>
7043.  </entry>
7044.  <entry>
7045.    <id>https://leap.tardate.com/Electronics101/LED/ACBulb/</id>
7046.    <link href="https://leap.tardate.com/Electronics101/LED/ACBulb/"/>
7047.    <updated>2020-03-14T16:56:38Z</updated>
7048.    <title>#067 LED AC Bulb</title>
7049.    <summary>build and analyse a commercial LED lamp kit with capacitive power supply</summary>
7050.    <g:image_link>https://leap.tardate.com/Electronics101/LED/ACBulb/assets/ACBulb_build.jpg</g:image_link>
7051.    <category term="Power"/>
7052.    <category term="LED"/>
7053.  </entry>
7054.  <entry>
7055.    <id>https://leap.tardate.com/Electronics101/SwitchNFET/</id>
7056.    <link href="https://leap.tardate.com/Electronics101/SwitchNFET/"/>
7057.    <updated>2015-06-04T13:47:48Z</updated>
7058.    <title>#066 Switch - NFET</title>
7059.    <summary>small-signal n-channel MOSFET switch with turn-off delay</summary>
7060.    <g:image_link>https://leap.tardate.com/Electronics101/SwitchNFET/assets/SwitchNFET_build.jpg</g:image_link>
7061.    <category term="MOSFET"/>
7062.  </entry>
7063.  <entry>
7064.    <id>https://leap.tardate.com/playground/LevelIndicatorLM3915/</id>
7065.    <link href="https://leap.tardate.com/playground/LevelIndicatorLM3915/"/>
7066.    <updated>2015-06-04T13:47:48Z</updated>
7067.    <title>#065 LevelIndicatorLM3915</title>
7068.    <summary>Driving an LM3915 10-segment display with a single Arduino pin</summary>
7069.    <g:image_link>https://leap.tardate.com/playground/LevelIndicatorLM3915/assets/LevelIndicatorLM3915_build.jpg</g:image_link>
7070.    <category term="LM3915"/>
7071.    <category term="Arduino"/>
7072.  </entry>
7073.  <entry>
7074.    <id>https://leap.tardate.com/Radio/LPD433/RFSwitchASK/</id>
7075.    <link href="https://leap.tardate.com/Radio/LPD433/RFSwitchASK/"/>
7076.    <updated>2019-09-29T13:47:06Z</updated>
7077.    <title>#064 ASK RF Switch</title>
7078.    <summary>data communications using ASK protocol over 433Mhz RF transmitter and receiver set</summary>
7079.    <g:image_link>https://leap.tardate.com/Radio/LPD433/RFSwitchASK/assets/RFSwitchASK_build.jpg</g:image_link>
7080.    <category term="Radio"/>
7081.    <category term="ASK"/>
7082.    <category term="Arduino"/>
7083.    <category term="LPD433"/>
7084.  </entry>
7085.  <entry>
7086.    <id>https://leap.tardate.com/Radio/LPD433/RFSwitch/</id>
7087.    <link href="https://leap.tardate.com/Radio/LPD433/RFSwitch/"/>
7088.    <updated>2019-09-29T13:47:06Z</updated>
7089.    <title>#063 RFSwitch</title>
7090.    <summary>simple remote control switch with 433Mhz transmitter/receiver and some analog signal processing</summary>
7091.    <g:image_link>https://leap.tardate.com/Radio/LPD433/RFSwitch/assets/RFSwitch_build.jpg</g:image_link>
7092.    <category term="Radio"/>
7093.    <category term="OpAmp"/>
7094.    <category term="LPD433"/>
7095.  </entry>
7096.  <entry>
7097.    <id>https://leap.tardate.com/Electronics101/DigitalLogic/SRLatchFlipper/</id>
7098.    <link href="https://leap.tardate.com/Electronics101/DigitalLogic/SRLatchFlipper/"/>
7099.    <updated>2017-04-30T06:29:37Z</updated>
7100.    <title>#062 SR Latch Flipper</title>
7101.    <summary>Set/Reset latch with BJTs, controlled and monitored by an Arduino</summary>
7102.    <g:image_link>https://leap.tardate.com/Electronics101/DigitalLogic/SRLatchFlipper/assets/SRLatchFlipper_build.jpg</g:image_link>
7103.    <category term="Digital Logic"/>
7104.    <category term="BJT"/>
7105.    <category term="Arduino"/>
7106.  </entry>
7107.  <entry>
7108.    <id>https://leap.tardate.com/Electronics101/DigitalLogic/SRLatch/</id>
7109.    <link href="https://leap.tardate.com/Electronics101/DigitalLogic/SRLatch/"/>
7110.    <updated>2017-04-30T06:29:37Z</updated>
7111.    <title>#061 SR Latch</title>
7112.    <summary>Set/Reset latch with BJTs</summary>
7113.    <g:image_link>https://leap.tardate.com/Electronics101/DigitalLogic/SRLatch/assets/SRLatch_build.jpg</g:image_link>
7114.    <category term="Digital Logic"/>
7115.    <category term="BJT"/>
7116.  </entry>
7117.  <entry>
7118.    <id>https://leap.tardate.com/Electronics101/Power/Breadboard5V/</id>
7119.    <link href="https://leap.tardate.com/Electronics101/Power/Breadboard5V/"/>
7120.    <updated>2019-12-16T17:24:08Z</updated>
7121.    <title>#060 5V Breadboard Regulator</title>
7122.    <summary>an LM7805 5V regulated power supply on breadboard-compatible protobboard</summary>
7123.    <g:image_link>https://leap.tardate.com/Electronics101/Power/Breadboard5V/assets/Breadboard5V_build.jpg</g:image_link>
7124.    <category term="Breadboard Bling"/>
7125.    <category term="Power"/>
7126.  </entry>
7127.  <entry>
7128.    <id>https://leap.tardate.com/Electronics101/555Timer/TwoToneDoorbell/</id>
7129.    <link href="https://leap.tardate.com/Electronics101/555Timer/TwoToneDoorbell/"/>
7130.    <updated>2019-12-28T09:22:23Z</updated>
7131.    <title>#059 Two-tone Doorbell</title>
7132.    <summary>basic two-tone doorbell using a 555 timer oscillator, with n-channel FET for power conservation</summary>
7133.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/TwoToneDoorbell/assets/TwoToneDoorbell_build.jpg</g:image_link>
7134.    <category term="555 Timer"/>
7135.    <category term="Oscillators"/>
7136.  </entry>
7137.  <entry>
7138.    <id>https://leap.tardate.com/playground/Led4Digit7Segment/</id>
7139.    <link href="https://leap.tardate.com/playground/Led4Digit7Segment/"/>
7140.    <updated>2016-10-03T13:11:01Z</updated>
7141.    <title>#058 4 Digit 7-Segment LED Displays</title>
7142.    <summary>overview of driving a 4-digit 7-segment display</summary>
7143.    <g:image_link>https://leap.tardate.com/playground/Led4Digit7Segment/assets/Led4Digit7Segment_build.jpg</g:image_link>
7144.    <category term="7-Segment"/>
7145.    <category term="Arduino"/>
7146.  </entry>
7147.  <entry>
7148.    <id>https://leap.tardate.com/Electronics101/CapacitanceTester/</id>
7149.    <link href="https://leap.tardate.com/Electronics101/CapacitanceTester/"/>
7150.    <updated>2015-03-15T05:44:03Z</updated>
7151.    <title>#057 CapacitanceTester</title>
7152.    <summary>capacitor tester with LCD output</summary>
7153.    <g:image_link>https://leap.tardate.com/Electronics101/CapacitanceTester/assets/CapacitanceTester_build.jpg</g:image_link>
7154.    <category term="LCD"/>
7155.    <category term="RC"/>
7156.    <category term="Arduino"/>
7157.  </entry>
7158.  <entry>
7159.    <id>https://leap.tardate.com/Kinetics/ServoMotors/JoystickServoControl/</id>
7160.    <link href="https://leap.tardate.com/Kinetics/ServoMotors/JoystickServoControl/"/>
7161.    <updated>2021-09-12T11:16:07Z</updated>
7162.    <title>#056 JoystickServoControl</title>
7163.    <summary>controlling two SG90 servos with a joystick</summary>
7164.    <g:image_link>https://leap.tardate.com/Kinetics/ServoMotors/JoystickServoControl/assets/JoystickServoControl_build.jpg</g:image_link>
7165.    <category term="Human Input"/>
7166.    <category term="Arduino"/>
7167.  </entry>
7168.  <entry>
7169.    <id>https://leap.tardate.com/playground/RelayControlTest/</id>
7170.    <link href="https://leap.tardate.com/playground/RelayControlTest/"/>
7171.    <updated>2015-06-04T13:47:48Z</updated>
7172.    <title>#055 RelayControlTest</title>
7173.    <summary>quick test to drive a motor with a common relay using NPN switching circuit under Arduino control</summary>
7174.    <g:image_link>https://leap.tardate.com/playground/RelayControlTest/assets/RelayControlTest_build.jpg</g:image_link>
7175.    <category term="Servo"/>
7176.    <category term="Arduino"/>
7177.  </entry>
7178.  <entry>
7179.    <id>https://leap.tardate.com/playground/RelayModuleTest/</id>
7180.    <link href="https://leap.tardate.com/playground/RelayModuleTest/"/>
7181.    <updated>2015-06-04T13:47:48Z</updated>
7182.    <title>#054 RelayModuleTest</title>
7183.    <summary>quick test of a common relay board to switch a motor under Arduino control</summary>
7184.    <g:image_link>https://leap.tardate.com/playground/RelayModuleTest/assets/RelayModuleTest_build.jpg</g:image_link>
7185.    <category term="Servo"/>
7186.    <category term="Arduino"/>
7187.  </entry>
7188.  <entry>
7189.    <id>https://leap.tardate.com/Electronics101/FunctionGenerator324/</id>
7190.    <link href="https://leap.tardate.com/Electronics101/FunctionGenerator324/"/>
7191.    <updated>2015-06-04T13:47:47Z</updated>
7192.    <title>#053 LM324 Function Generator</title>
7193.    <summary>LM324 configured as a low-frequency square, triangle, sine, and cosine function generator</summary>
7194.    <g:image_link>https://leap.tardate.com/Electronics101/FunctionGenerator324/assets/FunctionGenerator324_build.jpg</g:image_link>
7195.    <category term="OpAmp"/>
7196.    <category term="Oscillators"/>
7197.  </entry>
7198.  <entry>
7199.    <id>https://leap.tardate.com/Electronics101/Comparator741/</id>
7200.    <link href="https://leap.tardate.com/Electronics101/Comparator741/"/>
7201.    <updated>2015-04-04T02:21:41Z</updated>
7202.    <title>#052 Comparator741</title>
7203.    <summary>demo LM741 OpAmp comparator mode (with PWM-to-analog side-topic)</summary>
7204.    <g:image_link>https://leap.tardate.com/Electronics101/Comparator741/assets/Comparator741_build.jpg</g:image_link>
7205.    <category term="OpAmp"/>
7206.  </entry>
7207.  <entry>
7208.    <id>https://leap.tardate.com/playground/JarabeTapatio/</id>
7209.    <link href="https://leap.tardate.com/playground/JarabeTapatio/"/>
7210.    <updated>2015-04-04T02:21:41Z</updated>
7211.    <title>#051 El Jarabe Tapatío</title>
7212.    <summary>play The Mexican Hat Dance on a piezo buzzer with LM 386 amplification</summary>
7213.    <g:image_link>https://leap.tardate.com/playground/JarabeTapatio/assets/JarabeTapatio_build.jpg</g:image_link>
7214.    <category term="Audio"/>
7215.    <category term="Arduino"/>
7216.  </entry>
7217.  <entry>
7218.    <id>https://leap.tardate.com/Girabot/</id>
7219.    <link href="https://leap.tardate.com/Girabot/"/>
7220.    <updated>2016-06-23T14:50:15Z</updated>
7221.    <title>#050 Girabot</title>
7222.    <summary>EE40LX Electronic Interfaces robot project</summary>
7223.    <g:image_link>https://leap.tardate.com/Girabot/assets/Girabot_build.jpg</g:image_link>
7224.    <category term="Sensors"/>
7225.    <category term="OpAmp"/>
7226.    <category term="Arduino"/>
7227.  </entry>
7228.  <entry>
7229.    <id>https://leap.tardate.com/Electronics101/Oscillators/BjtRcOscillator/</id>
7230.    <link href="https://leap.tardate.com/Electronics101/Oscillators/BjtRcOscillator/"/>
7231.    <updated>2019-06-02T04:21:51Z</updated>
7232.    <title>#049 BJT RC Oscillator</title>
7233.    <summary>simple RC/transistor multistable vibrator</summary>
7234.    <g:image_link>https://leap.tardate.com/Electronics101/Oscillators/BjtRcOscillator/assets/BjtRcOscillator_build.jpg</g:image_link>
7235.    <category term="BJT"/>
7236.    <category term="RC"/>
7237.    <category term="Oscillators"/>
7238.  </entry>
7239.  <entry>
7240.    <id>https://leap.tardate.com/playground/StereoLightTrigger/</id>
7241.    <link href="https://leap.tardate.com/playground/StereoLightTrigger/"/>
7242.    <updated>2015-04-04T02:21:41Z</updated>
7243.    <title>#048 StereoLightTrigger</title>
7244.    <summary>demo an interrupt-driven method for responding to LDR light threshold triggers</summary>
7245.    <g:image_link>https://leap.tardate.com/playground/StereoLightTrigger/assets/StereoLightTrigger_build.jpg</g:image_link>
7246.    <category term="Sensors"/>
7247.    <category term="Arduino"/>
7248.  </entry>
7249.  <entry>
7250.    <id>https://leap.tardate.com/Electronics101/LDR/StereoTripDetector/</id>
7251.    <link href="https://leap.tardate.com/Electronics101/LDR/StereoTripDetector/"/>
7252.    <updated>2023-05-02T14:10:51Z</updated>
7253.    <title>#047 LDR Stereo Trip Detector</title>
7254.    <summary>demo LM324 OpAmp as threshold trigger for stereo LDR/Wheatstone Bridge sensor</summary>
7255.    <g:image_link>https://leap.tardate.com/Electronics101/LDR/StereoTripDetector/assets/StereoTripDetector_build.jpg</g:image_link>
7256.    <category term="OpAmp"/>
7257.  </entry>
7258.  <entry>
7259.    <id>https://leap.tardate.com/playground/MotorControlPWM/</id>
7260.    <link href="https://leap.tardate.com/playground/MotorControlPWM/"/>
7261.    <updated>2015-03-21T10:00:31Z</updated>
7262.    <title>#046 PWM Motor Control</title>
7263.    <summary>Testing DC motor speed control using an Arduino-generated PWM signal</summary>
7264.    <g:image_link>https://leap.tardate.com/playground/MotorControlPWM/assets/MotorControlPWM_build.jpg</g:image_link>
7265.    <category term="Motors"/>
7266.    <category term="Arduino"/>
7267.  </entry>
7268.  <entry>
7269.    <id>https://leap.tardate.com/Electronics101/555Timer/SimpleSiren/</id>
7270.    <link href="https://leap.tardate.com/Electronics101/555Timer/SimpleSiren/"/>
7271.    <updated>2015-03-21T10:00:31Z</updated>
7272.    <title>#045 SimpleSiren</title>
7273.    <summary>classic timer circuit producing a two-tone oscillation</summary>
7274.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/SimpleSiren/assets/SimpleSiren_build.jpg</g:image_link>
7275.    <category term="555 Timer"/>
7276.  </entry>
7277.  <entry>
7278.    <id>https://leap.tardate.com/Electronics101/555Timer/SimpleChime/</id>
7279.    <link href="https://leap.tardate.com/Electronics101/555Timer/SimpleChime/"/>
7280.    <updated>2015-03-21T10:00:31Z</updated>
7281.    <title>#044 SimpleChime</title>
7282.    <summary>play a sound for a fixed duration when a button is pressed</summary>
7283.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/SimpleChime/assets/SimpleChime_build.jpg</g:image_link>
7284.    <category term="555 Timer"/>
7285.  </entry>
7286.  <entry>
7287.    <id>https://leap.tardate.com/playground/HitTheLights/</id>
7288.    <link href="https://leap.tardate.com/playground/HitTheLights/"/>
7289.    <updated>2015-03-15T05:44:04Z</updated>
7290.    <title>#043 HitTheLights</title>
7291.    <summary>simple LED game with LCD output and interrupt-driven button input</summary>
7292.    <g:image_link>https://leap.tardate.com/playground/HitTheLights/assets/HitTheLights_build.jpg</g:image_link>
7293.    <category term="LCD"/>
7294.    <category term="Human Input"/>
7295.    <category term="Arduino"/>
7296.  </entry>
7297.  <entry>
7298.    <id>https://leap.tardate.com/Kinetics/ServoMotors/ServoTest/</id>
7299.    <link href="https://leap.tardate.com/Kinetics/ServoMotors/ServoTest/"/>
7300.    <updated>2021-09-12T11:16:07Z</updated>
7301.    <title>#042 ServoTest</title>
7302.    <summary>test the positioning accuracy of an SG90 servo motor driven by an Arduino</summary>
7303.    <g:image_link>https://leap.tardate.com/Kinetics/ServoMotors/ServoTest/assets/ServoTest_build.jpg</g:image_link>
7304.    <category term="Servo"/>
7305.    <category term="Arduino"/>
7306.  </entry>
7307.  <entry>
7308.    <id>https://leap.tardate.com/playground/Shifty/</id>
7309.    <link href="https://leap.tardate.com/playground/Shifty/"/>
7310.    <updated>2015-03-15T05:44:04Z</updated>
7311.    <title>#041 Shifty</title>
7312.    <summary>drive 8 LEDs with 3 pins using a 74HC595 shift register</summary>
7313.    <g:image_link>https://leap.tardate.com/playground/Shifty/assets/Shifty_build.jpg</g:image_link>
7314.    <category term="LED"/>
7315.    <category term="CMOS/TTL"/>
7316.    <category term="Arduino"/>
7317.  </entry>
7318.  <entry>
7319.    <id>https://leap.tardate.com/Electronics101/MeLEDy/</id>
7320.    <link href="https://leap.tardate.com/Electronics101/MeLEDy/"/>
7321.    <updated>2015-03-15T05:44:03Z</updated>
7322.    <title>#040 MeLEDy</title>
7323.    <summary>use an electret microphone to light a series of LEDs in proportion to volume</summary>
7324.    <g:image_link>https://leap.tardate.com/Electronics101/MeLEDy/assets/MeLEDy_build.jpg</g:image_link>
7325.    <category term="Audio"/>
7326.  </entry>
7327.  <entry>
7328.    <id>https://leap.tardate.com/Electronics101/Oscillators/AstableOpamp/</id>
7329.    <link href="https://leap.tardate.com/Electronics101/Oscillators/AstableOpamp/"/>
7330.    <updated>2017-08-19T13:50:42Z</updated>
7331.    <title>#039 Square Wave - LM324</title>
7332.    <summary>using an LM324 OpAmp to generate a square wave (astable opamp oscillator)</summary>
7333.    <g:image_link>https://leap.tardate.com/Electronics101/Oscillators/AstableOpamp/assets/AstableOpamp_build.jpg</g:image_link>
7334.    <category term="OpAmp"/>
7335.    <category term="Oscillators"/>
7336.  </entry>
7337.  <entry>
7338.    <id>https://leap.tardate.com/playground/ElectretADC/</id>
7339.    <link href="https://leap.tardate.com/playground/ElectretADC/"/>
7340.    <updated>2015-03-15T05:44:04Z</updated>
7341.    <title>#038 ElectretADC</title>
7342.    <summary>convert electret signal to a full range analog input with an LM324 preamp and plot the raw and aplified signals</summary>
7343.    <g:image_link>https://leap.tardate.com/playground/ElectretADC/assets/ElectretADC_build.jpg</g:image_link>
7344.    <category term="Audio"/>
7345.    <category term="Arduino"/>
7346.  </entry>
7347.  <entry>
7348.    <id>https://leap.tardate.com/playground/ElectretTrigger/</id>
7349.    <link href="https://leap.tardate.com/playground/ElectretTrigger/"/>
7350.    <updated>2015-04-04T02:21:41Z</updated>
7351.    <title>#037 ElectretTrigger</title>
7352.    <summary>uses an electret microphone and LM324 amplifier to trigger action when over audio threshold</summary>
7353.    <g:image_link>https://leap.tardate.com/playground/ElectretTrigger/assets/ElectretTrigger_build.jpg</g:image_link>
7354.    <category term="Sensors"/>
7355.    <category term="Audio"/>
7356.    <category term="OpAmp"/>
7357.    <category term="Arduino"/>
7358.  </entry>
7359.  <entry>
7360.    <id>https://leap.tardate.com/Electronics101/NonInverting324/</id>
7361.    <link href="https://leap.tardate.com/Electronics101/NonInverting324/"/>
7362.    <updated>2015-03-15T05:44:03Z</updated>
7363.    <title>#036 NonInverting324</title>
7364.    <summary>demo LM324 OpAmp non-inverting DC gain mode</summary>
7365.    <g:image_link>https://leap.tardate.com/Electronics101/NonInverting324/assets/NonInverting324_build.jpg</g:image_link>
7366.    <category term="OpAmp"/>
7367.  </entry>
7368.  <entry>
7369.    <id>https://leap.tardate.com/playground/RangeFinder/</id>
7370.    <link href="https://leap.tardate.com/playground/RangeFinder/"/>
7371.    <updated>2015-03-15T05:44:04Z</updated>
7372.    <title>#035 RangeFinder</title>
7373.    <summary>proximity/distance measurement with an HC-SR04 untrasonic ranging module</summary>
7374.    <g:image_link>https://leap.tardate.com/playground/RangeFinder/assets/RangeFinder_build.jpg</g:image_link>
7375.    <category term="Sensors"/>
7376.    <category term="Arduino"/>
7377.    <category term="HC-SR04"/>
7378.  </entry>
7379.  <entry>
7380.    <id>https://leap.tardate.com/Electronics101/LDR/Comparator/</id>
7381.    <link href="https://leap.tardate.com/Electronics101/LDR/Comparator/"/>
7382.    <updated>2023-05-02T14:10:51Z</updated>
7383.    <title>#034 LDR Comparator</title>
7384.    <summary>low-light/proximity Trip Detector demonstration using LM324 and LDR/Wheatstone Bridge sensor</summary>
7385.    <g:image_link>https://leap.tardate.com/Electronics101/LDR/Comparator/assets/Comparator_build.jpg</g:image_link>
7386.    <category term="Sensors"/>
7387.    <category term="OpAmp"/>
7388.    <category term="Arduino"/>
7389.  </entry>
7390.  <entry>
7391.    <id>https://leap.tardate.com/Electronics101/SwitchPNP/</id>
7392.    <link href="https://leap.tardate.com/Electronics101/SwitchPNP/"/>
7393.    <updated>2015-03-15T05:44:04Z</updated>
7394.    <title>#033 Switch - PNP</title>
7395.    <summary>small-signal digital switch with PNP BJT</summary>
7396.    <g:image_link>https://leap.tardate.com/Electronics101/SwitchPNP/assets/SwitchPNP_build.jpg</g:image_link>
7397.    <category term="BJT"/>
7398.  </entry>
7399.  <entry>
7400.    <id>https://leap.tardate.com/Electronics101/SwitchNPN/</id>
7401.    <link href="https://leap.tardate.com/Electronics101/SwitchNPN/"/>
7402.    <updated>2015-03-15T05:44:04Z</updated>
7403.    <title>#032 Switch - NPN</title>
7404.    <summary>small-signal digital switch with NPN BJT</summary>
7405.    <g:image_link>https://leap.tardate.com/Electronics101/SwitchNPN/assets/SwitchNPN_build.jpg</g:image_link>
7406.    <category term="BJT"/>
7407.  </entry>
7408.  <entry>
7409.    <id>https://leap.tardate.com/Electronics101/555Timer/TriangleWaveGen/</id>
7410.    <link href="https://leap.tardate.com/Electronics101/555Timer/TriangleWaveGen/"/>
7411.    <updated>2015-03-15T05:44:03Z</updated>
7412.    <title>#031 Triangle Wave - 555</title>
7413.    <summary>generate a triangle wave with 555 timer astable oscillator and RC integrator</summary>
7414.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/TriangleWaveGen/assets/TriangleWaveGen_build.jpg</g:image_link>
7415.    <category term="555 Timer"/>
7416.    <category term="Oscillators"/>
7417.  </entry>
7418.  <entry>
7419.    <id>https://leap.tardate.com/playground/BlinkPrecision/</id>
7420.    <link href="https://leap.tardate.com/playground/BlinkPrecision/"/>
7421.    <updated>2015-03-15T05:44:04Z</updated>
7422.    <title>#030 BlinkPrecision</title>
7423.    <summary>use a timer to perform a function on a precise schedule</summary>
7424.    <g:image_link>https://leap.tardate.com/playground/BlinkPrecision/assets/BlinkPrecision_build.jpg</g:image_link>
7425.    <category term="LED"/>
7426.    <category term="Timing"/>
7427.    <category term="Arduino"/>
7428.  </entry>
7429.  <entry>
7430.    <id>https://leap.tardate.com/Electronics101/Power/LinearRegulators/Zener/</id>
7431.    <link href="https://leap.tardate.com/Electronics101/Power/LinearRegulators/Zener/"/>
7432.    <updated>2021-07-20T17:22:12Z</updated>
7433.    <title>#029 Zener Regulator</title>
7434.    <summary>demonstrates using a 1N4733 Zener diode as a 5V regulator, using an Arduino to measure the voltage supply and plot the results with Processing</summary>
7435.    <g:image_link>https://leap.tardate.com/Electronics101/Power/LinearRegulators/Zener/assets/Zener_build.jpg</g:image_link>
7436.    <category term="Power"/>
7437.  </entry>
7438.  <entry>
7439.    <id>https://leap.tardate.com/Electronics101/Power/MB102BreadboardPowerSupply/</id>
7440.    <link href="https://leap.tardate.com/Electronics101/Power/MB102BreadboardPowerSupply/"/>
7441.    <updated>2024-04-10T06:30:53Z</updated>
7442.    <title>#028 MB102 3.3/5V Breadboard Power Supply</title>
7443.    <summary>demo and test a commercial 3.3/5V MB102 breadboard power supply unit</summary>
7444.    <g:image_link>https://leap.tardate.com/Electronics101/Power/MB102BreadboardPowerSupply/assets/MB102BreadboardPowerSupply_build.jpg</g:image_link>
7445.    <category term="Power"/>
7446.  </entry>
7447.  <entry>
7448.    <id>https://leap.tardate.com/Electronics101/Power/LinearRegulators/LM7805/</id>
7449.    <link href="https://leap.tardate.com/Electronics101/Power/LinearRegulators/LM7805/"/>
7450.    <updated>2021-07-20T17:22:12Z</updated>
7451.    <title>#027 LM7805 Regulator</title>
7452.    <summary>demonstrates the LM7805 5V regulator, using an Arduino to measure the voltage supply and plot the results with Processing</summary>
7453.    <g:image_link>https://leap.tardate.com/Electronics101/Power/LinearRegulators/LM7805/assets/LM7805_build.jpg</g:image_link>
7454.    <category term="Power"/>
7455.  </entry>
7456.  <entry>
7457.    <id>https://leap.tardate.com/Electronics101/Power/LinearRegulators/LM317/</id>
7458.    <link href="https://leap.tardate.com/Electronics101/Power/LinearRegulators/LM317/"/>
7459.    <updated>2021-07-20T17:22:12Z</updated>
7460.    <title>#026 LM317 Adjustable Regulator</title>
7461.    <summary>Demonstrates the LM317 voltage regulator, using an Arduino to measure the voltage supply and plot the results with Processing</summary>
7462.    <g:image_link>https://leap.tardate.com/Electronics101/Power/LinearRegulators/LM317/assets/LM317_build.jpg</g:image_link>
7463.    <category term="Power"/>
7464.  </entry>
7465.  <entry>
7466.    <id>https://leap.tardate.com/Electronics101/QuadLatch/</id>
7467.    <link href="https://leap.tardate.com/Electronics101/QuadLatch/"/>
7468.    <updated>2020-03-14T16:56:38Z</updated>
7469.    <title>#025 Quad Latch</title>
7470.    <summary>graph the basic operation of the 74LS75 4-bit bistable latch</summary>
7471.    <g:image_link>https://leap.tardate.com/Electronics101/QuadLatch/assets/QuadLatch_build.jpg</g:image_link>
7472.    <category term="CMOS/TTL"/>
7473.  </entry>
7474.  <entry>
7475.    <id>https://leap.tardate.com/Electronics101/ResistorTransistorLogic/AND/</id>
7476.    <link href="https://leap.tardate.com/Electronics101/ResistorTransistorLogic/AND/"/>
7477.    <updated>2015-07-06T10:56:17Z</updated>
7478.    <title>#024 AND Gate with Resistor-Transistor Logic</title>
7479.    <summary>test the basic resistor-transistor logic AND gate </summary>
7480.    <g:image_link>https://leap.tardate.com/Electronics101/ResistorTransistorLogic/AND/assets/AND_build.jpg</g:image_link>
7481.    <category term="BJT"/>
7482.    <category term="RTL"/>
7483.    <category term="Digital Logic"/>
7484.  </entry>
7485.  <entry>
7486.    <id>https://leap.tardate.com/Electronics101/ResistorTransistorLogic/NAND/</id>
7487.    <link href="https://leap.tardate.com/Electronics101/ResistorTransistorLogic/NAND/"/>
7488.    <updated>2015-07-06T10:56:17Z</updated>
7489.    <title>#023 NAND Gate with Resistor-Transistor Logic</title>
7490.    <summary>test the basic resistor-transistor logic NAND gate </summary>
7491.    <g:image_link>https://leap.tardate.com/Electronics101/ResistorTransistorLogic/NAND/assets/NAND_build.jpg</g:image_link>
7492.    <category term="BJT"/>
7493.    <category term="RTL"/>
7494.    <category term="Digital Logic"/>
7495.  </entry>
7496.  <entry>
7497.    <id>https://leap.tardate.com/Electronics101/Oscillators/SchmittOscillator/</id>
7498.    <link href="https://leap.tardate.com/Electronics101/Oscillators/SchmittOscillator/"/>
7499.    <updated>2023-05-02T14:10:52Z</updated>
7500.    <title>#022 Square Wave - Schmitt Oscillator</title>
7501.    <summary>using an 74LS14 Hex Inverter with Schmitt Trigger Inputs to generate a square wave</summary>
7502.    <g:image_link>https://leap.tardate.com/Electronics101/Oscillators/SchmittOscillator/assets/SchmittOscillator_build.jpg</g:image_link>
7503.    <category term="CMOS/TTL"/>
7504.    <category term="Oscillators"/>
7505.  </entry>
7506.  <entry>
7507.    <id>https://leap.tardate.com/Electronics101/SchmittInverter/</id>
7508.    <link href="https://leap.tardate.com/Electronics101/SchmittInverter/"/>
7509.    <updated>2016-06-23T14:50:15Z</updated>
7510.    <title>#021 Schmitt Inverter</title>
7511.    <summary>graph the basic operation of the 74LS14 Hex Inverter with Schmitt Trigger Inputs</summary>
7512.    <g:image_link>https://leap.tardate.com/Electronics101/SchmittInverter/assets/SchmittInverter_build.jpg</g:image_link>
7513.    <category term="CMOS/TTL"/>
7514.  </entry>
7515.  <entry>
7516.    <id>https://leap.tardate.com/playground/Internals/</id>
7517.    <link href="https://leap.tardate.com/playground/Internals/"/>
7518.    <updated>2018-07-28T06:39:21Z</updated>
7519.    <title>#020 Arduino Internals</title>
7520.    <summary>report on Arduino Board internals</summary>
7521.    <g:image_link>https://leap.tardate.com/playground/Internals/assets/Internals_build.jpg</g:image_link>
7522.    <category term="Arduino"/>
7523.  </entry>
7524.  <entry>
7525.    <id>https://leap.tardate.com/playground/Popcorn/</id>
7526.    <link href="https://leap.tardate.com/playground/Popcorn/"/>
7527.    <updated>2015-03-15T05:44:04Z</updated>
7528.    <title>#019 Popcorn</title>
7529.    <summary>How to make a piezo buzzer even more annoying? Make it play popcorn!</summary>
7530.    <g:image_link>https://leap.tardate.com/playground/Popcorn/assets/Popcorn_build.jpg</g:image_link>
7531.    <category term="Audio"/>
7532.    <category term="Arduino"/>
7533.  </entry>
7534.  <entry>
7535.    <id>https://leap.tardate.com/FretBoard/</id>
7536.    <link href="https://leap.tardate.com/FretBoard/"/>
7537.    <updated>2016-10-03T13:11:01Z</updated>
7538.    <title>#018 FretBoard</title>
7539.    <summary>a multi-project build status indicator, that pulls software build status from the net and animates the status of up to 24 projects with an LED array</summary>
7540.    <g:image_link>https://leap.tardate.com/FretBoard/assets/FretBoard_build.jpg</g:image_link>
7541.    <category term="LED Array"/>
7542.    <category term="Arduino"/>
7543.  </entry>
7544.  <entry>
7545.    <id>https://leap.tardate.com/Electronics101/555Timer/Monostable/</id>
7546.    <link href="https://leap.tardate.com/Electronics101/555Timer/Monostable/"/>
7547.    <updated>2015-03-15T05:44:03Z</updated>
7548.    <title>#017 Monostable</title>
7549.    <summary>basic monostable mode using an Arduino and processing to plot the output</summary>
7550.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/Monostable/assets/Monostable_build.jpg</g:image_link>
7551.    <category term="555 Timer"/>
7552.  </entry>
7553.  <entry>
7554.    <id>https://leap.tardate.com/Electronics101/555Timer/AstableOscillator/</id>
7555.    <link href="https://leap.tardate.com/Electronics101/555Timer/AstableOscillator/"/>
7556.    <updated>2015-03-15T05:44:03Z</updated>
7557.    <title>#016 Square Wave - 555</title>
7558.    <summary>using a 555 timer as an astable oscillator to generate a square wave and an Arduino and processing to plot the output</summary>
7559.    <g:image_link>https://leap.tardate.com/Electronics101/555Timer/AstableOscillator/assets/AstableOscillator_build.jpg</g:image_link>
7560.    <category term="555 Timer"/>
7561.    <category term="Oscillators"/>
7562.  </entry>
7563.  <entry>
7564.    <id>https://leap.tardate.com/LEDArrayDemos/StripTease/</id>
7565.    <link href="https://leap.tardate.com/LEDArrayDemos/StripTease/"/>
7566.    <updated>2016-06-23T14:50:15Z</updated>
7567.    <title>#015 StripTease</title>
7568.    <summary>demo a range of effects on the LED strip</summary>
7569.    <g:image_link>https://leap.tardate.com/LEDArrayDemos/StripTease/assets/StripTease_build.jpg</g:image_link>
7570.    <category term="LED Array"/>
7571.    <category term="Arduino"/>
7572.  </entry>
7573.  <entry>
7574.    <id>https://leap.tardate.com/LEDArrayDemos/AsyncLedStripEffects/</id>
7575.    <link href="https://leap.tardate.com/LEDArrayDemos/AsyncLedStripEffects/"/>
7576.    <updated>2016-06-23T14:50:15Z</updated>
7577.    <title>#014 LED Array Async Effects</title>
7578.    <summary>demo effects on the LED strip driven using timer interrupt</summary>
7579.    <g:image_link>https://leap.tardate.com/LEDArrayDemos/AsyncLedStripEffects/assets/AsyncLedStripEffects_build.jpg</g:image_link>
7580.    <category term="LED Array"/>
7581.    <category term="Timing"/>
7582.    <category term="Arduino"/>
7583.  </entry>
7584.  <entry>
7585.    <id>https://leap.tardate.com/Electronics101/ResistorTransistorLogic/NOT/</id>
7586.    <link href="https://leap.tardate.com/Electronics101/ResistorTransistorLogic/NOT/"/>
7587.    <updated>2020-03-14T16:56:38Z</updated>
7588.    <title>#013 NOT Gate with Resistor-Transistor Logic</title>
7589.    <summary>test the basic resistor-transistor logic NOT gate (Inverter)</summary>
7590.    <g:image_link>https://leap.tardate.com/Electronics101/ResistorTransistorLogic/NOT/assets/NOT_build.jpg</g:image_link>
7591.    <category term="BJT"/>
7592.    <category term="RTL"/>
7593.    <category term="Digital Logic"/>
7594.  </entry>
7595.  <entry>
7596.    <id>https://leap.tardate.com/Electronics101/Capacitorial/</id>
7597.    <link href="https://leap.tardate.com/Electronics101/Capacitorial/"/>
7598.    <updated>2016-06-23T14:50:15Z</updated>
7599.    <title>#012 Capacitorial</title>
7600.    <summary>graphing capacitor discharge with Processing</summary>
7601.    <g:image_link>https://leap.tardate.com/Electronics101/Capacitorial/assets/Capacitorial_build.jpg</g:image_link>
7602.    <category term="RC"/>
7603.  </entry>
7604.  <entry>
7605.    <id>https://leap.tardate.com/Kinetics/StepperMotors/28BYJ48/X113647StepperLibrary/</id>
7606.    <link href="https://leap.tardate.com/Kinetics/StepperMotors/28BYJ48/X113647StepperLibrary/"/>
7607.    <updated>2018-11-04T15:38:01Z</updated>
7608.    <title>#011 X113647StepperLibrary</title>
7609.    <summary>a standard Stepper-compatible Arduino library that supports half-stepping the 28BYJ-48 unipolar stepper motor with a ULN2003A/X113647 Stepper Motor Driver Board</summary>
7610.    <g:image_link>https://leap.tardate.com/Kinetics/StepperMotors/28BYJ48/X113647StepperLibrary/assets/X113647StepperLibrary_build.jpg</g:image_link>
7611.    <category term="Stepper"/>
7612.    <category term="Arduino"/>
7613.  </entry>
7614.  <entry>
7615.    <id>https://leap.tardate.com/playground/LightOrNot/</id>
7616.    <link href="https://leap.tardate.com/playground/LightOrNot/"/>
7617.    <updated>2016-06-23T14:50:15Z</updated>
7618.    <title>#010 LightOrNot</title>
7619.    <summary>uses an LDR to adjust the blink rate of an LED</summary>
7620.    <g:image_link>https://leap.tardate.com/playground/LightOrNot/assets/LightOrNot_build.jpg</g:image_link>
7621.    <category term="Sensors"/>
7622.    <category term="Arduino"/>
7623.  </entry>
7624.  <entry>
7625.    <id>https://leap.tardate.com/playground/Blink/</id>
7626.    <link href="https://leap.tardate.com/playground/Blink/"/>
7627.    <updated>2015-03-15T05:44:04Z</updated>
7628.    <title>#009 Blink</title>
7629.    <summary>the simplest blinking LED, with some electrical measurements thrown in</summary>
7630.    <g:image_link>https://leap.tardate.com/playground/Blink/assets/Blink_build.jpg</g:image_link>
7631.    <category term="LED"/>
7632.    <category term="Arduino"/>
7633.  </entry>
7634.  <entry>
7635.    <id>https://leap.tardate.com/LEDArrayDemos/RGBCalibrate/</id>
7636.    <link href="https://leap.tardate.com/LEDArrayDemos/RGBCalibrate/"/>
7637.    <updated>2016-06-23T14:50:15Z</updated>
7638.    <title>#008 LED Array RGB Calibration</title>
7639.    <summary>quick test to make sure LEDs are correctly addressable and their color can be set correctly</summary>
7640.    <g:image_link>https://leap.tardate.com/LEDArrayDemos/RGBCalibrate/assets/RGBCalibrate_build.jpg</g:image_link>
7641.    <category term="LED Array"/>
7642.    <category term="Arduino"/>
7643.  </entry>
7644.  <entry>
7645.    <id>https://leap.tardate.com/LEDArrayDemos/</id>
7646.    <link href="https://leap.tardate.com/LEDArrayDemos/"/>
7647.    <updated>2016-06-23T14:50:15Z</updated>
7648.    <title>#007 Programmable LED Arrays</title>
7649.    <summary>Intro and Setup.. I bought some WS2811-based LED Strips with a specific project in mind. But first, need to get them working...</summary>
7650.    <g:image_link>https://leap.tardate.com/LEDArrayDemos/assets/LEDArrayDemos_build.jpg</g:image_link>
7651.    <category term="LED Array"/>
7652.    <category term="Arduino"/>
7653.  </entry>
7654.  <entry>
7655.    <id>https://leap.tardate.com/playground/BetterWithBacon/</id>
7656.    <link href="https://leap.tardate.com/playground/BetterWithBacon/"/>
7657.    <updated>2015-03-15T05:44:04Z</updated>
7658.    <title>#006 It's Better With Bacon</title>
7659.    <summary>simple LCD test</summary>
7660.    <g:image_link>https://leap.tardate.com/playground/BetterWithBacon/assets/BetterWithBacon_build.jpg</g:image_link>
7661.    <category term="LCD"/>
7662.    <category term="Arduino"/>
7663.  </entry>
7664.  <entry>
7665.    <id>https://leap.tardate.com/playground/HeartQuotes/</id>
7666.    <link href="https://leap.tardate.com/playground/HeartQuotes/"/>
7667.    <updated>2016-06-23T14:50:15Z</updated>
7668.    <title>#005 HeartQuotes</title>
7669.    <summary>press a button to get a quote from the net and display on an LCD</summary>
7670.    <g:image_link>https://leap.tardate.com/playground/HeartQuotes/assets/HeartQuotes_build.jpg</g:image_link>
7671.    <category term="LCD"/>
7672.    <category term="Ethernet"/>
7673.    <category term="Arduino"/>
7674.  </entry>
7675.  <entry>
7676.    <id>https://leap.tardate.com/playground/PushbuttonLED/</id>
7677.    <link href="https://leap.tardate.com/playground/PushbuttonLED/"/>
7678.    <updated>2015-09-29T12:03:19Z</updated>
7679.    <title>#004 Pushbutton LED switch</title>
7680.    <summary>Momentary push button switch is used to toggle the LED on and off</summary>
7681.    <g:image_link>https://leap.tardate.com/playground/PushbuttonLED/assets/PushbuttonLED_build.jpg</g:image_link>
7682.    <category term="LED"/>
7683.    <category term="Arduino"/>
7684.  </entry>
7685.  <entry>
7686.    <id>https://leap.tardate.com/playground/LedChaser/</id>
7687.    <link href="https://leap.tardate.com/playground/LedChaser/"/>
7688.    <updated>2016-06-23T14:50:15Z</updated>
7689.    <title>#003 LED Chaser</title>
7690.    <summary>blinks a series of 12 LEDs in a coninuous loop</summary>
7691.    <g:image_link>https://leap.tardate.com/playground/LedChaser/assets/LedChaser_build.jpg</g:image_link>
7692.    <category term="LED"/>
7693.    <category term="Arduino"/>
7694.  </entry>
7695.  <entry>
7696.    <id>https://leap.tardate.com/playground/VariableLED/</id>
7697.    <link href="https://leap.tardate.com/playground/VariableLED/"/>
7698.    <updated>2020-02-15T09:52:40Z</updated>
7699.    <title>#002 Variable LED brightness with PWM</title>
7700.    <summary>variable resistor is used to control the brightness of an LED with PWM</summary>
7701.    <g:image_link>https://leap.tardate.com/playground/VariableLED/assets/VariableLED_build.jpg</g:image_link>
7702.    <category term="LED"/>
7703.    <category term="Arduino"/>
7704.  </entry>
7705.  <entry>
7706.    <id>https://leap.tardate.com/playground/LED7Segment/DirectDrive/</id>
7707.    <link href="https://leap.tardate.com/playground/LED7Segment/DirectDrive/"/>
7708.    <updated>2016-01-26T14:06:56Z</updated>
7709.    <title>#001 7-Segment Direct Drive</title>
7710.    <summary>test direct control of a 7-segment common-cathode LED display, performing a countdown from 9 to 0</summary>
7711.    <g:image_link>https://leap.tardate.com/playground/LED7Segment/DirectDrive/assets/DirectDrive_build.jpg</g:image_link>
7712.    <category term="LED"/>
7713.    <category term="7-Segment"/>
7714.    <category term="Arduino"/>
7715.  </entry>
7716. </feed>
7717.