A few years ago Ben Heck made a breath-operated controller to substitute for the kick drum pedal of the Guitar Hero drum set, allowing a wheelchair-bound player to rock out. This time, the master modder made his own USB-based pedals to give him added control options when playing video games on the PC.
Ben’s pedals are run by a Teensy board. His computer will recognize them as a keyboard, making it easy to map commands in games. Ben made it so he can map up to two commands per pedal: the first command is activated with a slight press and the second command is triggered by pressing harder on the pedal.
Watch Ben build them the video below. Skip to around 15:25 to see the finished pedals.