This is an Arduino based midi mixer. It sends midi signals over USB in response to the movement of the potentiometers. These standard midi signals that any program an interpret. I’ve tested it in Traktor and Ableton Live. The mixer uses 13 potentiometers and two 4051 multiplexers to read all of the pots.
I soldered headers to the wires that connect to the microcontroller. The headers make using the same arduino board for multiple projects a snap.
I should paint it but I don’t have the facilities here at school. I did the “metal work” at home during Christmas vacation with only a drill press, Sawz-all and Dremel.
The code is sloppy and there are a lot of commented out areas. I plan on making a pair of touch sensitive jog wheels using a mouse and the PS/2 library for the Arduino so it has provisions for capacitive sensors. I don’t know when that will happen but I have most of the materials that I need to do it.
Additional information available in this post: http://cal.freeshell.org/2010/03/more-about-my-midi-mixer/