Giorgos from PCBheaven wrote a post detailing the build of his DIY foot-controlled telepromter:
I’m preparing a whole new set of theory videos. I’ve set almost everything up, new camera, light fixtures, microphones and everything. I even used my old laptop as an telepromter to narrate the script. But i did not want to hand any remote control and i do want my hands to be free. I will be shooting the videos alone therefore i need some sort of control over the telepromter scroll, something to pause and restart the scrolling.
So i made this extremely simple foot switch USB remote controller.
Check out the video after the break.