“Piano Tiles” is quite a popular music game, in which the mission is to hit the black boxes on the screen according to the rhythm of the music. The Denver but Finn, He had the idea to build his own robot that you can do in-game record.

An iPhone 6+ located above the tablet monitor the speed of squares and sends the schedule via USB to a programmable board Teensy. The Board receives data and sends the step/direction in stepper motors, hitting the tablet's screen through conductive limbs.