You can use a command line switch to turn the backlight on and off.
I’m just getting started with this. Usli is not difficult - show the code.
Firstly Google and find the code to turn the screen on and off. Then make a command line switch as per the docs. Then use an automation triggered by your motion sensor.
with the code for switching the screen the problem is - I can not find it.
my mistake, you don’t even have to google, it is in this thread.
Hello, do run your HA OS on Pi that is build to the display?