Digital Theremin

Arduino, Piezo Microphone, Piezo Buzzer, Photoresistor, Disassembled Guitar Pedals (Distortion and Multi-Chorus), Arcade Buttons, Miscellaneous Electronics, Plexiglass, and Wood

Pitch is controlled via a light source. Arcade Buttons turn on/off the signal of each pedal and the Arduino itself. The knobs let you shape the sound as needed.