@sdetweil
I created a test event today… I will update the location of this test event tomorrow and run the curl command to see results

Got everything to work perfectly…

For anyone else who maybe considering using the doppler sensor with a potentiometer, you can follow the “how-to” thread in my initial post BUT use the MMM-PIR-Sensor-Lite module only as it keeps things simple. The other PIR modules may not work with Debian 11 (Bullseye)

As for the resolution, the mistake was on my end:

• I had “GND” and “Vout” swapped on the board pins

• I had to join my raspberry login id to group “gpio”

The following page is very useful to test the functionality of the sensor before you implement the change to mirror config file (thanks to @sdetweil for posting the link in a different thread):

https://projects.raspberrypi.org/en/projects/parent-detector/3

Again thanks to all for the help…

@sdetweil
Thank you I will try… I ran:

xrandr -q

which show HDMI-2 is what is currently plugged in… Will report back

@sdetweil
that did it! Screen goes to sleep… now need to figure out how to get the doppler sensor to “wake-up” the monitor