[mircemk] decided to whip up a digital compass to demonstrate the value of ... The output of the device is read by an Arduino Nano, which is hooked up to a string of WS2812B LEDs and a small ...

Switch it on, set it down, and the sundial spins around on a continuous-rotation servo until the HMC5883L compass module finds ... Everything is controlled with an Arduino Nano and runs on a ...