2 layers30 × 61.3 mm
2 layers141.8 × 81.6 mm
Keyboard
Cheetah26/keyboardFully custom split keyboard
- Size
- 141.8 × 81.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 47
- Nets
- 44
- Pads
- 365
- Tracks, vias
- 600, 0
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 2 Feb 2024
- Updated
- 2 Feb 2024
Overview
Keyboard is an open-source printed circuit board by Cheetah26, from the Cheetah26/keyboard repository on GitHub. It is a 2-layer board of 141.8 × 81.6 mm with 47 parts on 44 nets, routed with 600 tracks and 0 vias.
Its parts include 20 diodes, 20 switches, 1 IC and 1 connector. It belongs with the keyboards and input boards and the AVR (ATmega, ATtiny) boards of this library.
README
README.mdkeyboard
My fully custom split keyboard
Features
- 40 key split layout
- dual rp2040 microcontrollers
- kmk firmware
- stenography layer for plover
- 3d printed base
Background / design
After years of wanting an ergonomic split keyboard but never seeing one that perfectly matched what I imagined in my mind, I decided to design and build my own!
I started completely from scratch by putting my hand on a sheet of paper and just seeing where my fingers liked to be. From there I made a layout based on where keys could actually go, and iterated until things really felt right.
I laid out the PCB according to this design, ordered all the parts, and anxiously waited to find out what I messed up. Since this was my first time designing a PCB, fist time programming a microcontroller, and first big soldering project, I 100% expected something to go wrong. To my surprise, the only issue was that I forgot to account for the size of the jack connecting each half. After a little sanding, everything went together perfectly and now I couldn't be happier with it.
Parts
47| Qty | Value | Footprint | References |
|---|---|---|---|
| 20 | 1N4148 | keyboard:Diode | D1, D2, D3, D4, D5, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20 +4 |
| 20 | Choc | keyboard:Kailh_socket_PG1350_optional_reversible_outline | SW1, SW2, SW3, SW4, SW5, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20 +4 |
| 1 | ProMicro | keyboard:ProMicro | U1 |
| 1 | TRRS | keyboard:PJ320-A_TRRS | J1 |
The 42 most common of 47 parts.
Questions
How big is the Keyboard PCB?
It measures 141.8 × 81.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Keyboard use?
47 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Keyboard KiCad files?
From the Cheetah26/keyboard repository on GitHub, at the commit this page was made from: the board is pcb/keyboard.kicad_pcb and its schematic pcb/keyboard.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Keyboard design in my own project?
Its repository states no licence, so its author keeps all rights: ask Cheetah26 before reusing the design.
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