4 layers85.6 × 54 mm

Sound spectrum v1
path321/sound_spectrum_mcu
STM32-powered board to analyze sound from MEMS microphone
40 partsMIT
KiCad boards from 1 GitHub repository tagged “pyqt”, the most starred first; open any of them in PCBKit.

path321/sound_spectrum_mcu
STM32-powered board to analyze sound from MEMS microphone