Hall Effect Sensor.

[Joe Ross]

Originally Posted by Excelsior

Well, we mounted it on a protoboard, and hooked up power and ground to the first and fourth pins respectively. We connected the third and fourth pins, and simply put a wire to pin two to hook up to the o-scope. We were really just testing it to make sure it was putting out a signal, and what kind of signal it put out, but we can't get anything from it. Does that help you help me?

What type of gear did you use, and how good was your rotation mechanism. Also, how close was it? Remember that it needs to see 8 teeth in a row to calibrate, and if you were just moving the gear in and out or rotating it by hand, it may not have ever been able to calibrate.