Uncompatible Systems

A Hall effect sensor is a better solution to measure rotational speed than a reed relay for a number of reasons. First, there are no moving parts aside from the magnet. Reed sensors are vacuum sealed glass tubes and can break under stress. Second, they are very accurate. Hall effect sensors can be found in automobile transmissions and hard disk motors.

So I’m on the hunt for some hall effect sensors I can mount to a set of rollers. Digikey is complicated, so I’ll be documenting progress.