My collection of project files and guides to build more DIY electronic musical instruments that I designed over my research/practice are now available on GITHUB and HACKADAY.
Nano Perc v1 (percussive sounds from an arduino nano)
D&D Teensy (pocket sized Drone & Drama from a Teensy 3.2 / 4.0)
Squeal & Scrape (9v amp & contact microphone for workshops)
The files to build your own Drone & Drama v2 instrument are available online.
Files include: schematics, bill of materials, gerbers, build guide.
There are four modules: sine/triangle generator / noise siren / filter / mixer.
It was inspired by simple synth DIY + the idea “bent by design”.
Sound examples can be heard through Toneburst.