I'm working on a build that's using a Protoneer Raspberry Pi CNC Hat v2.60 for the controller. I've seen several posts where people have got their boards working with NC switches but I can't manage to find any specifics on the wiring. I'm pretty new to this (first DIY build) so maybe someone can help me out. The sensors I have are NPN NC sensors have three wires - positive, negative, and signal. How do I go about hooking those up to the Raspberry Pi CNC hat? Any help at all would be greatly appreciated.
