2 layers92 × 75.8 mm

STM32CrapSynth
LTVA1/STM32CrapSynth
A crappy hardware synth using STM32F303 and 4 AD9833 waveform generators
70 parts4MIT
KiCad boards from 2 GitHub repositories tagged “chiptune”, the most starred first; open any of them in PCBKit.

LTVA1/STM32CrapSynth
A crappy hardware synth using STM32F303 and 4 AD9833 waveform generators

sebasdv/pikocore_gamepad
Fork of pikocore ported to run on the Waveshare RP2350-PiZero + GamePi13 handheld — full-color LCD dashboard, 12-button menu, and save/load state on a lo-fi sampler that was originally knob-only.