BLTouch 3.1 wiring on Duet 3

[Tortuga]

This is probably a pretty obvious thing, but I've seen a few wiring diagrams and forum posts contradicting each other so I figured I might as well ask here.

To start, here is a very simple wiring diagram I found showing what the wires are. There are two ground wires, so should I just splice both into one wire and connect it to the GND pin of the Duet 3's IO connector?

Second, does +5V (red wire) go to 5V_EXT? From there I assume the yellow wire goes to input (or io4.in in this case), and white goes to output (or io4.out) but I'm not certain.

[jay_s_uk]

@Tortuga slice both the ground together.
(Although I believe they internally connected so you may only actually need one.
Yellow goes to io.out (as it's out from the board and in to the probe) and white goes to Io.in

[Tortuga]

This post is deleted!

[Tortuga]

@jay_s_uk Just to be certain, was I right about red going to 5V_EXT?

[jay_s_uk]

@Tortuga yes