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aek2 usb

by kb-elmo · ·

105 keys unibody

Alps soldered ATmega32A QMK

3D render of the aek2 usb circuit board
The bare PCB, drawn from aek2_usb.kicad_pcb. No switches or keycaps: this is the board as manufactured.

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Record 100% complete · 18 of 18 fields

The PCB is built entirely with THT parts to keep a somewhat "vintage" look to it and it uses the fullsize 40-pin DIP package ATmega32A. The controller is placed in the exact same location as the one on the original PCB.

Layouts

Spec

Shape

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

Switches

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

Electronics

Controller
soldered ATmega32A
Connectivity
Wired — the soldered ATmega32A has no radio
USB port
— not recorded —
Firmware
QMK (kb_elmo/aek2_usb)
Firmware targets
ATmega32A
Key wiring
8×14 matrix, column-to-row diodes
Room for
— not recorded —
Power switch
no
Exposed components
no

Building it

Build method
PCB
Soldering
through-hole (MCU, LED, diode, connector, other)
SMD required
no

Licensing

Hardware
CC-BY-NC-SA-4.0
Firmware
CC-BY-NC-SA-4.0
Documentation
CC-BY-NC-SA-4.0

Sources