2 layers187.2 × 26.6 mm
2 layers136.7 × 87.7 mm
Chococorne
spott/kbdmodified chococorne low profile split wireless keyboard.
- Size
- 136.7 × 87.7 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 50
- Nets
- 47
- Pads
- 412
- Tracks, vias
- 646, 111
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 3 Dec 2025
- Updated
- 3 Dec 2025
Overview
Chococorne is an open-source printed circuit board by spott, from the spott/kbd repository on GitHub. It is a 2-layer board of 136.7 × 87.7 mm with 50 parts on 47 nets, routed with 646 tracks and 111 vias.
Its parts include 23 switches, 21 diodes, 2 ICs and 2 connectors. It belongs with the AVR (ATmega, ATtiny) boards of this library.
README
readme.mdUpdates that I want to make:
- [] Add an extra row of keys for the number row.
- [] Add an on/off switch.
- [] change the rotary encoder to be a lower torque one... The current one is too hard to turn.
- [] Add mounting holes for the keyboard so that it can be mounted on a plate (for some weight).
optional:
- [] Add a way to tilt the keyboard for some ergonomics?
- [] Add a trackpoint? (https://github.com/infused-kim/kb_zmk_ps2_mouse_trackpoint_driver?tab=readme-ov-file#blog-post)
- [] This looks interesting: https://github.com/dschil138/Fulcrum (more here: https://reddit.com/r/ErgoMechKeyboards/comments/10qad50/new_40key_version_of_the_fulcrum_for_the/)
Parts
50| Qty | Value | Footprint | References |
|---|---|---|---|
| 21 | D | Diode_SMD:D_SOD-123-double-sided | D1, D2, D3, D4, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21 +5 |
| 21 | SW_PUSH | keyswitches:Kailh_socket_PG1350_reversible_2 | SW1, SW2, SW3, SW4, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21 +5 |
| 2 | OLED | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | J2, J2 |
| 2 | ProMicro | nice-nano-kicad:nice_nano_v2 | U1, U1 |
| 2 | RotaryEncoder_Switch | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm_smd | SW43, SW43 |
| 2 | SW_PUSH | Button_Switch_SMD:SW_SPST_FSMSM | RSW1, RSW1 |
Questions
How big is the Chococorne PCB?
It measures 136.7 × 87.7 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Chococorne use?
50 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 Chococorne KiCad files?
From the spott/kbd repository on GitHub, at the commit this page was made from: the board is chococorne.kicad_pcb and its schematic chococorne.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Chococorne design in my own project?
Its repository states no licence, so its author keeps all rights: ask spott before reusing the design.
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