crabapplepad v2

Wireless minimalistic foldable split keyboard

Features

• Foldable. The keyboard can be folded and put in a pocket
• Minimalistic. No LEDs, no RGB, no extra keys
• With Kailh Choc it's 3cm thick in the folded state
• Split. The two halves are connected with a 3d printed hinge
• Wireless. Uses Nice!Nano or ProMicro nRF52840 with BLE
• 42 keys (I use Cyrillic layout too and 36 keys is not enough)
• Apple Magic Trackpad can be magnetically attached (optional)

PCB design

PCB is generated using ergogen. Then it finished in KiCAD. The files are in the hw folder.

To regenerate the PCB run:

npx ergogen hw --clean && open output/pcbs/kbd.kicad_pcb

NB! The final PCB was heavily modified in KiCAD

Firmware

The firmware is based on ZMK and Myrioku Layout adapted for 42 keys. T

Where is the slim V1?

It's in the v1 branch. The V1 is ccm thick in the folded state with Kailh X switches. The V2 is 3cm thick with Kailh Choc switches.