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42

by nglgzz · ·

42 keys unibody

Alps / Choc v1 / MX Pro Micro socket QMK

Photo of an assembled 42
An assembled 42, from the project's own README.

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Record 100% complete · 17 of 17 fields

A mechanical keyboard with 42 keys.

Layouts

Spec

Shape

Body
unibody
Splay
no
Stagger
column-staggered
Key spacing
MX spacing · 19.05 × 19.05 mm

Switches

Switch footprint
Alps, Choc v1, MX
Hotswap
Mill-Max, or solder the switches in

Electronics

Controller
Pro Micro socket
Connectivity
Wireless with a nice!nano v2 — needs a ZMK config
USB port
USB-C or micro-USB, depends on the dev board
Firmware
QMK (handwired/42)
Firmware targets
ATmega32U4
Key wiring
4×12 matrix, column-to-row diodes
Room for
— not recorded —
Power switch
no
Exposed components
no

Building it

Build method
PCB
Soldering
through-hole (diode)
SMD required
no

Licensing

Hardware
MIT
Firmware
MIT
Documentation
MIT

Sources