AKA "Rockstars Macropad". A KMK and Raspberry pi based 20 key macropad. The macropad is direct pin, meaning every button uses a dedication gpio pin, so no diodes are needed.
This was created for a workshop at Team Rockstars IT
- Raspberry Pi Pico. Make sure you get the variant with gpio pins 16/17 in the bottom right
- 20 Cherry MX compatible switches
- 20 Cherry MX keycaps
- Main PCB
- Bottom plate PCB
- 8x M2.5 screws
- 4 Spacers
- Those round bumper things you stick under something to make it non-slip
- Dowload the Circuitpython release for the pico board.
- Plug in the pi pico while holding the "boot" button
- Copy the circuitpython Uf2 to the root of the device
- It should now reboot, and you should have a "CIRCUITPY" storage device
- Remove the
code.pyfile from the storage device - Copy all files from the
firmwarefolder to the root of the drive - Replug the device
It should now behave as a keyboard.
This macropad uses KMK for it's firmware. KMK is a flexible circuitpython based project for mechanical keyboards that offers a lot of options. The basic firmware for the RSMP is simple, in that every button outputs a letter. To customize the behavior, you can modify main.py.
As an example of layers, the bottom left button will output a space when tapped, and when held, the buttons will output numbers and various symbols instead of letters.
- KMK - Keyboard software
- ncarandini - Kicad pi pico footprint and model
- foostan - Keyboard switch footprints