A palm-sized sphere containing an Arduino Uno, accelerometer and Bluetooth transmitter. Custom software maps orientation to a pitch space by assigning pitches to a face of an equivalently oriented polyhedron. Notes are triggered when different faces move through a fixed axis, with further processing effects being controlled through acceleration of the sphere. (Arduino, Processing, Ableton Live, Max4Live).
The project was presented as part of Cave Of Sounds.
Complete source code and schematics: https://github.com/ptigas/sonicsphere