This time we’re looking at the protocol that powers Wacom’s wireless pens, and taking a deep look into the logic circuits (74xx!) that make them run.
If you missed the last video, check it out for the big picture on how graphics tablets work: https://youtu.be/nPab7pbOhBY
Get your own copy of the schematics in PDF or KiCad format: https://git.approximate.life/ec155.git/