642, 954 Likes 23, 990 Dislikes
Robot breaks the record for Piano Tiles on the iPad.
Overhead iPhone 6+ processes video of the iPad screen at 120 fps.
iPhone tracks tile speed and sends timing info via MIDI over USB through the camera connection kit.
Teensy 3.2 receives tile data and sends step/direction to stepper drivers, which smash the tiles via conductive foam on brass bars.