This new guide by John Park, Deluxe 4×4 NeoPixel Keypad, shows you how to create a high-end, custom keypad using NeoKey Ortho Snap-apart PCBs, mechanical keyswitches, keycaps, a QT Py, and an aluminum case.
You can create anything from a USB HID keypad, to MIDI controller, to music clip launcher using this design.
Code it in Arduino on the QT Py M0, or you could opt instead for a QT Py RP2040 and use CircuitPython as well.
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