Posted on December 29, 2020

This is my first keyboard project, and I am excited that it works! I made a 4x3 USB keypad – this is what it can do:

The circuit board was designed in KiCad and I had the smallest possible batch manufactured. The controller is the cheapest “blue pill” type of STM32 board that I could find that didn’t take weeks to deliver.

So far it seems to work nicely after some setup and re-wiring issues.

Blue pill type STM32 board
Gateron Brown switches
Leftovers from a keycap set that I was using for my regular keyboard

There is more to come, stay tuned!