Howdy all
The router build is coming along well, cold weather means I am indoors doing fiddly things instead of the shed so the opto home switches are on the agenda.
I am using the circuit as per http://www.cnczone.com/forums/genera..._switches.html and many other threads and have the LED flicking off and on just fine.
My issue is, how do I get this to work as ON when the opto is clear, i.e. not blocked. I want to use the switches as NC so that a power failure or cable fault on the opto circuit will cause an alert on Mach3.
Thanks for any suggestions
David