Bl touch don't stop z axis

[bernas]

Hi, I'm using a duet 2 Wi-Fi, I've checked the wiring a lot of times, I did the alterations needed on the firmware to make the bl touch work and nothing...
So presuming that I'm doing something wrong i decided to make a new reprap firmware but with bl touch and the same thing happened, the bl touch deploys and retract with M401 and M402 but when I home z the bl touch deploys and don't retract when something touch it, as if it doesn't recognize the z endstop.

I checked the black and white wire and they are good.

If i try to home z without the z endstop connected on the "IN" and "OUT" pins from the duet I have an error.

I presume that is something about the firmware that I'm doing wrong, any hint?

Ps: I tried with other bltouch and it didn't work

[droftarts]

@bernas Please post your config.g and response to sending M115 in the console. Also post your homeall.g and homez.g file, and pictures of your wiring at the Duet end and at the BLTouch.

Ian