Inside, an Arduino Nano is hooked up to a series of WS2812b LEDs. The LEDs are flashed in time with the heartbeat of the person holding the heart, thanks to a MAX30102 heartbeat sensor.

Posted in Radio Hacks Tagged am, analog, arduino, detection, galvanometer, lightning, nano, radio, sensitivity, TA7642 ← Measuring LED Flicker, With Phototransistor And Audio App ...

Arduino powers a magnetic levitating lamp Fancy making a cool looking magnetic levitating lamp? Check out this Arduino Nano-based project that combines a magnet and LEDs. What's that you say? The lamp ...