Tom wanted to operate the panning of his webcam via foot pedal. The solution he came up with was to use the old Guitar Hero wireless pedals. He reverse engendered the PlayStation protocol to allow his Arduino to communicate with the pedals. What he ended up with were 2 wireless pedals with linear position reporting.
I wanted an electronic footpedal, and wasn’t prepared to drop $50 on a wah-wah case. What were the DIY options? Making the mechanism from scratch seemed laborious and likely to disappoint. Hacking a sewing machine pedal was a possibility but I couldn’t find anything suitable. What I ended up with was an obsolete Guitar Hero peripheral.
Via the forum.