2 layers80 × 37.5 mm
National Keyboard Mux Board
SteveCooling/MidiKeys
Will be a complete board with decoders for multiplexed sampling of analog sources and up to 61-key keybeds
43 parts8MIT
Open-source KiCad boards
2 match “SteveCooling”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.
- 2 layers166 × 70 mm
Prototype
SteveCooling/MidiKeys
Will be a complete board with decoders for multiplexed sampling of analog sources and up to 61-key keybeds
75 parts8MIT