Hedrot (for "head rotation tracker") is a low-cost (less than 40 euros) and efficient open-source hardware/software solution for head tracking.
Jamoma is an international and open-source project defined as a platform for interactive art-based research and performance.
This is a model of Vassar College's Electrocomp EML-200 that I built for my students.
IanniX is a graphical open-source sequencer, based on Iannis Xenakis works, for digital art.
Audio looping environment for live and studio use.
I needed my own controller for Ableton Live. I built it in a diy mind and I'm using max for live as an interface between Ableton Live and the hardware.