The Moog Werkstatt-Ø1 is a patchable, 100% little analog synthesizer whose design is based on classic Moog circuits. It was created as an educational tool for teaching electronics assembly and analog circuit design. Recently a series of tutorial projects appeared on Werkstatt website, featuring the use of the Arduino Uno to mod and create effects using different sensors and components:
We used the Arduino UNO R3 for all mods, and the Moog Werkstatt Arduino Library was written specifically for it. Other micro-controllers with similar bootloaders (Teesnsy, Seeeduino, etc) have not been tested but could work. The Arduino features a USB interface, 6 analog input pins, and 14 digital I/O pins.
The 5 tutorials have also series of videos that demo each mod. For example, they integrated an accelerometer to measure movement in three dimensions:
And they added an arpeggiator/sequencer function: