Robin2:
I wonder if you mean that you want to record the time (the value of millis() ) when the signal goes HIGH and later record the time when it goes LOW so that you can replay the series of HIGHs and LOWs at the correct intervals?...R
Exactly, I want to capture the duration ... that is what a pulse is right? I want some way that I can retrace it. Saving somewhere something, that I can code or decode if it can't be done directly.