4x4x4

32 Key Macropad

Two 4x4x4x4x4 PCBs assembled into a 4x8 macropad.

This is running the same firmware as the 4x4x4x4x4, using only the left 8 columns. I also have a JSON file for use with kbfirmware.com.

A single board 16 key version is here.

 Gateron clear PCB mount switches. Grab bag SA profile keycaps

 Arduino Micro clone attached to the bottom of the PCB.

 M2 spacers and screws hold the PCBs to the aluminum plate.

Sanded down the aluminum plate with 220 grit sandpaper to smooth the sharp edges and the burs on the drilled holes.

The solder bridges creating the electrical connections between the two boards. More info on how the boards are connected here.