Printed circuit boards designed in KiCad and published on GitHub, each with its parts, layers and size, its README and its files; open any of them in PCBKit.
mhellar/speakhard
A handheld speech beat machine on an ESP32-S3. Four instruments (SAM voice, Talkie LPC voice, bytebeat, a 12-piece drum kit) on a 16-step sequencer, seven voice FX plus stutter/reverse/tape-stop/scratch, and a live HUD…
mhellar/blasteroid-megasynth
At boot it plays a generative splash that's different every time: two random geometry scenes (string-art mandala, polygon rings, flow-field particles, a rotating tunnel, a 3D Lissajous knot), glitch cuts.
mhellar/handheld-robodj
A pocket robot-voice DJ on an ESP32-S3. SAM (the 1982 Software Automatic Mouth speech synth) pre-renders a bank of words into memory, and a "turntable deck" plays, scratches, stutters and reverses them over a drum…