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Nano clone (atmega 328p), 12-bit dac (mcp4726) and small amounts of supporting hardware Microcontroller and smoothed PWM https://kassu2000.blogspot.com/2019/10/quantizer.html using a microcontroller but no DAC. Also interesting UI, featuring lit pushbuttons in a timely manner, at a 10-step panel layout } Experimenting with more representative footprints. Consider adding a switch module label(string, size=4, halign="center") { color([1,0,0]) linear_extrude(height) text(string, size, halign=halign, font=font_for_label); } //module title(string, size=9, halign="center", font="Futura.