I am trying to solve a problem and I don't know which equipment should I use in my scenario.
The situation is:
I need to trigger something that yield a noise (like a whistle) after that noise the equipament have to measue how much time spend like a StopWatch works. This will be the begin of the competition of the match.
The competition happen in an open field and the competitor have to hit in some plates that have sensors, those sensor emmit a signal to arduion and we can mark the hitted time.
The big problems is, How can I measuere the time spend after the start command (a noise) and the hit of the first plate?
I need to have a milliseconds of accuracy, so I don't know how my arduino can registers the start time and the hitted with good accuracy? So, if I can register the exact time I have the correct time between the start and hitted sensor.