The Babymidimultiplexgnusbuino is an 8-channel MIDI controller based on gnusbuino (a tiny USB arduinofied board based on Atmel's ATtiny-85 µC). It has 8 analogue inputs which can be potentiometers or anything else you like. The values are sent as MIDI CC control messages.
Prototype on a breadboard:
git clone https://github.com/stahlnow/babymidimultiplexgnusbuino
Check Babygnusbuino-v2 for general information on the board.
- Design of a parametric case
- Maybe make a USB stick version with solder pads for sensors