This magnetic board emits light and sound as a marble moves

Andrei Erdei recently designed an amazing Arduino-powered light board, which glows and plays sounds based on the movement of a magnetic marble.  First, the magnet is placed on top and then made to roll by lifting the device‚Äôs sides. An array of 36 reed switches underneath the smoked plexiglass surface detect the marble’s position, illuminating 36 … Continue reading This magnetic board emits light and sound as a marble moves