This is a test for controlling the tilt gimbal with a foot pedal, I simply attached the head tracker to a guitar volume pedal to test the idea. Unfortunately, I found it was not comparable to head tracking for both precision of control and how natural/intuitive the control felt, even after significant practice. For a more detailed account of testing watch the video bellow.
Pedal used for this testing: M-Audio EX-P | Universal Expression Pedal
Medlin Drone 