TYPE-K Interface 02

120% keyboard design

PCB

The design for the PCB was done in KiCad. The PCB is designed according to the specifications of manufacturing with JLCPCB.

BOM

• D1-128 MiniMELF Diode (LL4148 L1G)
• D129-256 WS2812B-Mini RGB LED
• J1 2x3-pin 2.54mm header (optional)
• J2 0.91" OLED Display (e.g. Amazon link)
• R1-3 4K7Ω 0805 resistor
• SW1-128 Cherry MX RGB switch (either plate or PCB mount)
• SW16 Alps EC11E rotary encoder
• SW129 MJTP1117 equivalent reset switch
• U1 Elite-C v4
• U2 74HC154 4-to-16 demultiplexer

Case

Prerequisites:

• pyenv (*nix or Windows)
• Poetry package manager

Building:

• poetry install
• poetry run python keyboard_layout.py

Firmware

Prerequisites:

• Podman
• dfu-programmer

Building:

• make

Flashing:

• make flash

Building and flashing in WSL

• Install Ubuntu >= 22.04
• Install usbipd-win
• sudo apt install dfu-programmer podman

Flashing:

• In Powershell
  • usbipd list
  • usbipd wsl attach --busid=#-##
• In WSL
  • sudo make flash
    • Accessing USB devices via usbipd requires root