4 layers36 × 50.2 mm
Racer
StuckAtPrototype/Racer
These are structured into their own files. I could have used submodules, but decided against it.
83 parts3.8kApache-2.0
2 layers271.4 × 97.5 mm
Corneucopia
DynamicWhiteHat/Corneucopia3A Corne based custom low-profile keyboard
- Size
- 271.4 × 97.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 146
- Nets
- 136
- Pads
- 728
- Tracks, vias
- 1,284, 296
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 4 Jun 2025
- Updated
- 1 Sep 2025
Overview
Corneucopia is an open-source printed circuit board by DynamicWhiteHat, from the DynamicWhiteHat/Corneucopia repository on GitHub. It is a 2-layer board of 271.4 × 97.5 mm with 146 parts on 136 nets, routed with 1,284 tracks and 296 vias.
It is built around the JS102011SAQN. Its parts include 84 diodes, 46 switches, 4 connectors and 2 ICs. It belongs with the keyboards and input boards and the nRF52 and nRF5x boards of this library.
Main components
1README
README.mdCorneucopia
Firmware available here: https://github.com/DynamicWhiteHat/Corneucopia-Firmware/
A Corne based custom low-profile keyboard
Corneucopia is a 42-key low profile wireless keyboard that runs on ZMK firmware. Featuring 2 OLED displays and powered by a Supermini NRF52840, this keyboard is meant to last as your daily driver.
Features
- 42 keys
- Per key RGB
- 2x Nice!View
- 2x Supermini NRF52840 (Nice!Nano clone)
- Hotswap sockets
- Low profile choc switches
Why I Made This
I was initally wary of split or ergonomic keyboards as I thought they looked bad. However, while I was designing my own regular keyboard, I came across split ergo keyboards online that caught my eye, especially this one. I slowly came to appreciate the look and layout of Corne keyboards, so I decided to make one. This project was a test of my PCB and CAD design skills, as well as a test of my ability to learn new things (ergogen). Overall, I think this came out very well.
Pictures
CAD
PCB
Schematic
BOM
Note:
- Typeractive was sometimes cheaper than AliExpress, thus some parts were sourced from them instead.
- Keycaps will be 3D printed
Parts
146| Qty | Value | Footprint | References |
|---|---|---|---|
| 42 | D | Diode_SMD:D_SOD-123 | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +26 |
| 42 | choc_SK6812MINI-E | PCM_marbastlib-choc:LED_choc_6028R | LED1, LED2, LED10, LED11, LED12, LED13, LED14, LED15, LED16, LED17, LED18, LED19, LED20, LED21, LED22, LED23 +26 |
| 40 | SW_Push_45deg | PCM_marbastlib-choc:choc_3D_hotswap | SW22, SW23, SW24, SW25, SW26, SW27, SW28, SW29, SW30, SW31, SW32, SW33, SW35, SW36, SW37, SW38 +24 |
| 10 | MountingHole_2.1mm | MountingHole:MountingHole_2.1mm | H1, H1, H1, H1, H1, H1, H1, H2, H3, H4 |
| 2 | Conn_01x05_Socket | Connector_PinSocket_2.54mm:PinSocket_1x05_P2.54mm_Vertical | J1, J2 |
| 2 | JS102011SAQN | 'Swight:SW_SSSS811101 | S3, S4 |
| 2 | Nice_Nano_V2 | PCM_marbastlib-xp-promicroish:nice_nano_H_USBdn | U1, U2 |
| 2 | S2B-PH-K-S_LF__SN_ | jst:JST_S2B-PH-K-S_LF__SN_ | J3, J4 |
| 2 | SW_Push | Reset:SW_EVQPUJ_4P7X3P5_PAN | SW44, SW46 |
| 2 | SW_Push_45deg | PCM_marbastlib-choc:SW_choc_v1_HS_CPG135001S30_1.5u | SW34, SW47 |
Questions
How big is the Corneucopia PCB?
It measures 271.4 × 97.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Corneucopia use?
146 parts, built around the JS102011SAQN. 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 Corneucopia KiCad files?
From the DynamicWhiteHat/Corneucopia repository on GitHub, at the commit this page was made from: the board is PCB/Corneucopia.kicad_pcb and its schematic PCB/Corneucopia.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Corneucopia design in my own project?
Its repository states no licence, so its author keeps all rights: ask DynamicWhiteHat before reusing the design.
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