keyboardbuilders

← All designs

romeo

by coseyfannitutti · ·

44 / 43 / 42 / 41 keys unibody

MX soldered ATmega328P QMK

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

What fits this board → Compare with another board →

Record 89% complete · 16 of 18 fields

Staggered 40% QMK and VIA compatible keyboard pcb assembled with only through hole components, including USB Type-C

Layouts

Spec

Shape

Body
unibody
Splay
— not recorded —
Stagger
— not recorded —
Key spacing
MX spacing · 19.05 × 19.05 mm

Switches

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

Electronics

Controller
soldered ATmega328P
Connectivity
Wired — the soldered ATmega328P has no radio
USB port
USB-C
Firmware
QMK (coseyfannitutti/romeo)
Firmware targets
ATmega328P
Key wiring
4×12 matrix, column-to-row diodes
Room for
— not recorded —
Power switch
no
Exposed components
yes

Building it

Build method
PCB
Soldering
SMD, fine-pitch (USB)
SMD required
yes

Licensing

Hardware
GPL-3.0-or-later
Firmware
GPL-3.0-or-later
Documentation
GPL-3.0-or-later

Sources