March 15, 2012
I have an arduino severino s3v3, atmeg168 and a hcsr ultrasonic sensor.
what i want is to start the timer when HCSR get an obstruction.
and stop it when the obstruction is clear.
I know the algorithm.bt I'm confused about using the proper function for counting time.
(also after counting the time the function to reset it.)
Thanx in advance