As I did not want to see any electronics with my mirror on the wall I needed to hide the PIR Sensor. I decided not to use a PIR Sensor. Instead I got a microwave motion detector that is mounted behind the glass. It works perfectly through the glass regarding to the indicator LED on the board.

Now the problem is:
The output signal of the motion sensor is high if there is no motion detected and is low if motion is detected.

I think the MMM-PIR Module switches the monitor on if the GPIO pin becomes high - so my display is always on.

is there a way to use my Sensor with the MMM-PIR-Module?

Thank you for any help
Jan-Christoph