Guitar pedal hacking with Arduino

http://diydsp.com/livesite/pages/GuitarPedals

http://www.openmusiclabs.com/2013/08/turn-your-arduino-into-a-stompbox/

http://www.youtube.com/watch?v=_X0bL6WS-VY

Collin's Lab: Guitar pedal hacking with Arduino

 

Hammond boxes for making your own guitar pedals