Hello,
What are the choices of hardware to use to count the rpm of a DC motor with a PIC? Let's say that the thing spinning on the motor is a metallic disk ( http://www.youtube.com/watch?v=K1asNB0te0o ). Could this be done by this:
Or maybe:
Or maybe a Hall-effect sensor:
So witch one of these is the best one to use? (by the way, I have the first two but not the last one so it would be great if you could describe the cons and pros of these). And are there other alternatives?
Thanks
What are the choices of hardware to use to count the rpm of a DC motor with a PIC? Let's say that the thing spinning on the motor is a metallic disk ( http://www.youtube.com/watch?v=K1asNB0te0o ). Could this be done by this:
Or maybe:
Or maybe a Hall-effect sensor:
So witch one of these is the best one to use? (by the way, I have the first two but not the last one so it would be great if you could describe the cons and pros of these). And are there other alternatives?
Thanks