Build guide

Parts required

1 Pedal master rev2 board
3 Amphenol audio 1/4" jack connectors ACJS/ACJM family.
- Tested with ACJS-MHDR
3 10K resistors
1 Arduino Micro
(Recommended) Male-female pin headers for mounting the arduino to the PCB. (Standard breadboard sizing.)

Tools required

Soldering iron

Instructions

Solder the components to the PCB on the silkscreened side.
Edit the firmware file firmware_rev2.ino using the Arduino IDE and in the config section, set the INVERTED config variable to true if using inverted pedals. (e.g. Yamaha branded ones.) You can also edit what each pedal does by customizing the KEYS variable. Refer to Keyboard.h in the Arduino SDK for available keycodes.
Flash the firmware to your Arduino micro.
Enjoy your new foot-operated keyboard! Note that no driver is required for usage, since the Arduino emulates a standard USB keyboard.