Here we show a little Theremin module which plugs onto a Arduino Board that gives out the tune to a speaker or puts out the tune as control signal like MIDI, Servo etc. We were using this device not only as a musical instrument, various kinds of proximity sensors, pointing devices or as interface in combination with Processing, Max or Pd have been build with this technique. How it Works The There
![Theremin as a Capacitive Sensing Device](https://cdn-ak-scissors.b.st-hatena.com/image/square/c3318798c2243ecff3fa5b2fb3024c7610bcac32/height=288;version=1;width=512/http%3A%2F%2Finterface.khm.de%2Fwp-content%2Fuploads%2F2008%2F12%2Fthm-mit-hand.jpg)