Corne Chocolate Low-profile Hotswap Split Ergo 40% Keyboard Kit
Designed by Kosuke Adachi (a.k.a. foostan). The designer receives a portion of the proceeds from every sale.
This kit was modified by 42. Keebs to include a power switch and battery connector for native wireless operation.
Build your very own custom split keyboard from scratch!
- Split 12×3 + 6 (40%-ish) ortho/ergo layout with an OLKB MX spacing (19.00×19.00 mm)
- Supports Kailh Choc V1 switches only
- Uses Kailh Choc hotswap sockets
- Supports in-switch RGB LEDs and RGB underglow
- Optional OLED screens
- Includes a power switch and battery pads on the PCB
- Fairly easy to build – based on Pro Micro controllers, but uses SMD diodes
- Tinned lead-free finish, black solder mask
Build guide in the GitHub repository
Kit includes:
- 2x main PCB
- 2x 2 mm acrylic switch plate (clear or smoky grey)
- 2x 2 mm acrylic bottom plate (clear or smoky grey)
- 44x SMD diodes (42 + 2 spare)
- 42x Kailh Choc V1 hotswap socket
- 2x TRRS socket
- 2x SMD power switch
- 2x Reset switch
- Brass standoffs and screws
- Acrylic covers
Available optional add-ons:
- 2x controllers (nice!nano, Frood etc.)
- OLED screens
- Kailh Choc switches
- TRRS cable
Other parts required to finish build:
- 2x Pro Micro or compatible controllers (Elite-C etc.)
- 42x Cherry MX-compatible switches
Other optional parts not included in the kit:
- 12x SK6812MINI in-switch RGB LEDs for underglow
- 42x SK6812MINI in-switch RGB LEDs
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