Ender 3 Pro Wiring Diagram. Th3d ender 3 dual z kit. Ender 3 pro and duet maestro guide part 5:

The probe mounting is a different between the ender 3 v2 and ender 3 / pro but the bulk of this guide applies to all the 32 bit ender 3 variants. The bltouch wiring connects to the ender 3 mainboard by splicing into the z endstop connector. This guide is for the ender 3 series of 3d printers.