Hi all, need some help here, as i'm new to uc i have a few problems of how to use it properly, i'm capturing speed sensor signal using uc C167, the signal operates between 0 to 135Hz max, how i can set the prescaler of the uc to match the capture signal so that i could take the measurement? the signal is a digital pulse (50-50 duty cycle), and what algorithm i need to convert the measurements to mph?? thanks to all.....
Obviously, you can't get anywhere until you understand precisely what the output from your sensor actually means!
What does its Datasheet say?
Number of pulses = Distance. Number of pulses/second = Frequency = Speed
Number of pulses/second => RPM of wheel, not RPM of engine