Need a timed reversible DC motor with either a string or rack and pinion.
I want to create a device that will lower a stylus to touch the screen on an ipad, then lower another stylus to touch another part of the screen. Then 6 seconds later repeat.
I thought to use 2 timers and 2 DC motors with either string attached to a spool attached to the styluses OR a rack an pinion set up. But I don't know what type of timer I need, or how to make a switch to reverse the direction of the motor... Thanks so much in advance!