hall effect help
hall effect help
(OP)
I am wondering if a hall effect sensor would be better than a reed switch. I have considered this but have not found any online schematics to be helpfull. Basically all I would need is something to run off of 12V dc, and drive an R/C circuit to convert the pulse to a triangle waveform. I am not familiar with how a hall effect chip is supposed to be hooked up in a simple circuit. thanks.





RE: hall effect help
You can stick a black patch on the rotating member and detect it going by. Or put a little platic flag on the rotating member and let it interrupt an integrated optical switch. Every laser printer or copy machine has a zillion of these in it.
RE: hall effect help
RE: hall effect help
Isn't an ABS sensor a Hall effect switch? I guess so, the tip is magnetized and it detects iron. This can make for a cheap and solid sensor.
Digikey sells a lot of different hall-effect sensors and elements.