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…
Postbag: #32 a – servos tester, db9, antenna, usb buck, relay
A selection of eBay items from China. Check out what I found. 1Pcs Electronic Lucky Rotary Suite DIY Kits Production…
Invention: dual complementary opto-isolator dcoi logic
DCOI - a new family of logic gates using opto-isolators. And the green and red LEDs aren't optional, they're an…
Testing led flashlights on a foggy night
Intended as a series of shots for separate videos, I couldn't resist stitching these together, so there is a bit…