3D render of a green wireless keyboard PCB with eighty-four hotswap switch sockets laid out in an 84-key layout

PCB designPart 3 of 4Drawing 16.3 of 47

Version 3

Drawn from scratch with an LED under every key. It went wireless, and now it's going back to wired.

StatusProduction, 2026. Version two built, version four drawn
Layout75%, 84 keys, hotswap Kailh Choc sockets
Version twoSTM32F072 over USB-C, QMK with VIA, all 84 keys tested
Version threeper-key RGB, moving from wireless to wired
Version fourTouch Bar, five PCBs, trackpad and numpad modules
Softwaremy own Keyboard Editor app for remapping

Sheet 02 of 04/Gen3

Drawn from scratch

The third one I drew from scratch, with an addressable LED under every key.

3D render of the underside of the wireless keyboard PCB showing routed traces and component pads — *PL 05*The underside of the third board, where the radio, the power tree and the per-key LED chain all have to share the space.

Sheet 03 of 04/Going wireless

Wireless, then wired again

The third board went wireless on an nRF52840, which added chargers, battery slots and a power path between them and USB. It's now being converted back to a wired STM32 running QMK, so the key array stays and the power section gets redrawn.

KiCad schematic sheet for the wireless keyboard showing the nRF52840 module, key matrix and power supply sections — *PL 04*The third schematic. Going wireless added a charger, a buck-boost converter, a power mux and a battery sense divider, none of which the wired board needed.

Sheet 04 of 04/Gen3 trackpad

A detachable trackpad

The third board also got a trackpad module that connects through a six-pin pogo connector. It's placed and passes its checks, but the sensor isn't routed yet.

3D render of a trackpad PCB covered edge to edge with a gold diamond-lattice capacitive sensor pattern on green solder mask — *PL 06*The detachable trackpad, a 130 by 100 mm diamond sensor grid in bare copper. It's placed and passes ERC and DRC with no errors, but 97 nets are still unrouted.