Arduino controlled Christmas lights ... There’s actually three of the LED modules per tile — two shining up to illuminate the tile, and one shining out. He’s set up a ton of different ...

Powered by an Arduino Uno, the light painter provides a user interface on a 16×2 LCD which allows control over not only the brightness of the WS2812 LED strips but selecting and loading different ...

Fastest finger first indicators (FFFIs) bring precision to quiz games, measuring contestants’ reaction times with accuracy.