Chinese 5 axis BoB not working with oh137 Hall Effect Sensor

[AppleAssassin]

Hey guys,

I'm using This Board Here



I'm trying to use an OH137 Hall Effect Sensor as a limit switch on the X axis of my lathe using LinuxCNC. I previously had a mechanical switch in place, however I was having repeatability issues.

I've attached a picture showing how I have it wired up. I have the output wire going to pin15 on the board. And 5v and ground going to those pins, along with a 1k ohm pull up resistor bridged between 5v and output.
I've also set the pin to active low in the software.


I've checked everything with a multimeter and it the 5v drops low when a magnet is near it so the oh137 itself is working.

Another thing I've tried is using the ground next to pin15 but that didn't make a difference.


Anyone here with electronics experience know where I'm going wrong?



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[Toinvd]

take your multimeter in resistor ( Ohm ) position and verify if the ground on the inputs is connected to the ground of your OH137. If not, connect a wire between these two and leave the other as in your diagram. Try again and it might work