Basic electronics: kit build #2 – leds, microphone dance music
It's a 3-channel sound-to-light spectrum analyser VU meter! eBay link: New 9-15V Voice Control Level Indicating Voice Indicator Module DIY…
Basic electronics: kit build #1 – soldering component identification
Building an electronic circuit from a kit of parts bought on eBay.
Teardown: 1.67 portable electronic scale
Teardown of a ludicrously cheap portable electronic scale. As well as a silly price, this weighing scale has a hugely…
Quick and dirty neo pixel addressable rgb led tester ws2812b
A super simple way to test Neo Pixel addressable RGB LEDs using little more than a 555 timer and a…
Postbag #33 – ws2812b rgb led, esp8266 test module
Some items of post: 10 RGB LED WS2812B Addressable Neo Pixel DC5V - Arduino & Raspberry Pi http://www.ebay.co.uk/itm/-/121532117064?roken=cUgayN via @eBay_UK…
Esp8266 hack #2: web enabled led – wifi internet-of-things iot
The complete sequence required to build this web-enabled LED
Esp8266 hack #1: web enabled led – wifi internet-of-things iot
After 3 frustrating days of trying, I've finally found a reliable, repeatable way of turning the ESP8266 into a web…
Visit to: bletchley park – home of the codebreakers
After watching the film "The Imitation Game", I felt inspired to visit Bletchley Park where all the code breaking activity…
First look: ltc3780 buck/boost dc/dc converter 10a 130w
A first look at this high efficiency (up to 98%) high current (10A) DC/DC converter employing 4-switch synchronous rectification. Based…
Postbag: #32 b – capacitive touch switch modules ttp224/226
The remainder of postbag #32, which turned into a bit of an epic. The capacitive touch switch modules were so…