Hi guys! Thank you for replying. Yes I am tapping my iphone screen, playing tapping games. I carry 2 Arduinos with the same code above programmed to both. However, one Arduino/code is slightly modified to allow for the 16ms speed. I use a lithium ion battery pack with 2 USB plugs to power the Arduinos. I only plug 1 tapper in to pin 13 on one Arduino and the other Arduino 1 tapper is plugged in to pin 11.
I basically need pin 13 to run at a continuous 63ms and pin 11 to run at a continuous 16ms with no delays on only 1 Arduino.
Hope that was a clearer explanation and makes sense.
Thank you!