This repository contains the CAD design code and firmware for my custom keyboard.
The cad directory contains code for generating the keyboard model, using
Python scripts for Blender.
The src directory contains the firmware for the keyboard. I use a
FeatherS3 for the microcontroller,
and the firmware code is built with the
ESP-IDF.
Some more images can be found in the img directory.
The doc directory contains various documentation. The assembly.md and wiring.md files may be of interest if you are looking to print and assemble your own version of the keyboard.
I've used Maltron keyboards for quite a long time. My original Maltron keyboard was a PS/2 model, and back in 2013 I built my own keyboard controller for it using a Teensy++ 2.0 microcontroller, in order to convert it to a USB keyboard.
The layout for this keyboard is heavily influenced by the Maltron layout--I wanted it to be fairly similar since I've used the Maltron layout for so long.
For generating the keyboard model programmatically I took some inspiration from the Dactyl-Manuform keyboard. I initially started out using OpenSCAD, but quickly found it fairly limiting and switched to using Python APIs for blender. For some choices of the electronic components, particularly the SX1509, I relied on some of the component selection from my co-worker Wez's Halfdeck keyboard.