Corne Classic Split Ergo 40% Keyboard Kit

Designed by Kosuke Adachi (a.k.a. foostan). The designer receives a portion of the proceeds from every sale.

Build your very own custom split keyboard from scratch!

• Split 12×3 + 6 (40%-ish) ortho/ergo layout
• PCB supports Cherry MX-compatible, Kailh Choc and Alps switches. However, a special plate is required for Alps switches (acrylic plate available on request)
• Supports in-switch RGB LEDs and RGB underglow (RGB LEDs not currently included)
• Optional OLED screens
• Very easy to build – based on Pro Micro controllers
• Tinned lead-free finish, black solder mask

⚠️💀 Warning: Never plug/unplug the TRRS cable while the keyboard is powered! It could damage the data pin of the controller. 💀⚠️

Build guide in the GitHub repository

Kit includes:

• 2x main PCB
• FR4 case:
  • 2x FR4 switch plate
  • 2x bottom plate made from PCB material (FR4)
• Acrylic case:
  • 2x acrylic switch plate (standard or tenting)
  • 2x acrylic bottom plate (standard or tenting)
• 42x through-hole or SMD diodes (selectable)
• 2x TRRS sockets
• 2x reset switches
• Brass standoffs and screws
• Acrylic covers

Required parts not included:

• 2x Pro Micro or compatible controllers (nice!nano, Frood etc.)
• 42x Cherry MX-compatible, Kailh Choc or Alps switches
• TRRS cable (for a wired build)

Optional parts not included in the kit:

• Controller Sockets/Pins
• OLED screens or nice!view screens
• In-switch RGB LEDs: 42x SK6812 MINI
• Underglow RGB LEDs: 12x SK6812 MINI