Eliminate the actual endstops from the tests.
each endstop plug has 3 pins from this diagram [
github.com] (you will need to scroll right to see this)
You can see the top pin is V, the middle pin is G and the bottom pin is S (make sure to orientate your controller so the stepper drivers are at the top to be the same as this image)
Without any endstops plugged in
Send the board a M119 , take note of the output.
now use a female to female Dupont Wire and connect the S pin to the G pin On X- and send another M119. Did anything change?
Now Connect the S pin to the V pin and send another M119, Did anything change?
If the end stop status doesn't change with at least one of these two tests you have either a badly configured firmware or a hardware fault
repeat tests on all endstops
NB under no circumstances connect V pin and G pins, this shorts the power to ground and will destroy your board.
Edited 2 time(s). Last edit at 08/23/2019 08:31AM by Dust.