Ergonomic

A full low-profile, ortholinear, column-staggered split keyboard built end-to-end. Custom PCBs handle the key matrix through diodes into a nice!nano controller, with ZMK firmware I wrote from scratch — keymaps, layers, Bluetooth pairing, and split-half communication. Designed around ergonomics first: column stagger that follows finger length, low-profile switches for a flatter wrist angle, and a split form factor for shoulder-width typing.

Role

Independent

Year

2026

Discipline

HARDWARE · FIRMWARE · SOFTWARE

• 01KiCad
• 02Fusion 360
• 03ZMK
• 04nice!nano

1. 01

   Designed the column-staggered ortholinear layout around finger length and reach, then laid out two mirrored halves for the split form factor.

2. 02

   Drew schematics and routed the PCBs in KiCad — diode-per-key matrix into a nice!nano (nRF52840) controller on each half, with hand-solderable footprints for low-profile Choc switches.

3. 03

   Modeled the case and plate in Fusion 360 for a low-profile stack, tuned for typing angle and switch retention.

4. 04

   Wrote the ZMK firmware end-to-end: keymap and layer definitions, combos and hold-taps, Bluetooth advertising and pairing, and the split-half link between the two controllers.

A working wireless split keyboard I use daily — custom hardware, custom firmware, and a layout tuned to how my hands actually move.