Best posts made by hmortensen

Editing a 20MB file with Opera (chromium based browser) on Win10 works fine. Just "slow" download from Duet board

Have you tried copying the value from the object browser?
In the screenshot it seems to be capital letter I in gpIn and your echo command is all lower case.

My lines for BLT using same wiring:
M950 S0 C"exp.heater3" ; create servo pin 0 for BLTouch
M558 P9 C"zprobe.in+zprobe.mod" H5 F600 T6000 ; set Z probe type to bltouch and the dive height + speeds

So I think you need to swap the two lines and use the pin ref as I'm using.

When testing homeing, raise your Z alot and just trigger the pin with your finger to avoid bed crashing. If it doesn't stop, then do powerdown.

If it's the default ESP32-cam sketch, then this URL should work:
http://<IP OF ESP>/capture