This is a must-do-have Christmas project. A colorful led topper for your Christmas tree!

The Arduino Water Sprinkler Controller is a centralized controller for a three 9v water sprinklers (electrovalves)

Square Theremin is a musical instrument allowing to play sounds by moving hand in a square-shaped frame, without touching the instrument itself

An Arduino-based granular synthesizer, totally DIY, from the Arduino board to the controls and the encloure. It is inspired by the Auduino project.