PC Footswitch with Sustain Pedal

Full blog post with more information here.

This is a 3D-printed case and an Arduino program that allows you to use a sustain pedal for an electric piano as a keyboard hotkey for your computer.

Parts Needed:

• 5V Arduino Pro Micro
• Normally closed (NC) sustain pedal
• 1/4" TS jack
• 1 M3 bolt
• Piece of double-sided tape
• Wire

With this design the center bolt hole is sized for an M3 tap. It may need some persuading if you don't have a tap handy.

To use the program with F13-F24 keys you will also need a copy of the updated Arduino Keyboard library circa 577e5c9.