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A New Chapter for MagicMirror: The Community Takes the Lead
Read the statement by Michael Teeuw here.

MMM-PIR-Sensor-Lite does not switch HDMI off

Scheduled Pinned Locked Moved Unsolved Troubleshooting
43 Posts 7 Posters 16.1k Views 7 Watching
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  • G Offline
    grena Module Developer @grena
    last edited by Sep 26, 2022, 7:08 PM

    :fire: MMM-PIR-Sensor-Lite 1.2 has just been released! It’s allows you to manage monitor on Debian 11 Bullseye :sign_of_the_horns_medium-light_skin_tone:

    Learn more in ReadMe

    D 1 Reply Last reply Nov 16, 2022, 4:45 PM Reply Quote 1
    • D Offline
      dkhorse74 @grena
      last edited by Nov 16, 2022, 4:45 PM

      @grena
      Hello Grena… Hoping you or someone maybe able to help. I had to rebuild my MM (using Pi4b). With regards to using a PIR sensor, I’m using a doppler sensor vs. a PIR sensor using the following build thread:

      https://forum.magicmirror.builders/topic/11704/update-replaced-my-pir-sensor-with-a-doppler-microwave-sensor?page=1

      Everything prior to rebuild worked great… The screen would go into stand-by after 2 mins and flip back on when the sensor picked up presence. The repo I had, originally, used:

      https://github.com/paviro/MMM-PIR-Sensor

      is no longer supported so I didn’t clone it. Instead, I used yours but having issues getting it to work. I can see the countdown on the screen but nothing happens. I unplugged the doppler sensor but no change. Any ideas? I’m running

      Debian v11
      MM v2.21

      on pi4b. Any help is greatly appreciated

      S 1 Reply Last reply Nov 16, 2022, 4:54 PM Reply Quote 0
      • S Offline
        sdetweil @dkhorse74
        last edited by Nov 16, 2022, 4:54 PM

        @dkhorse74 another user noticed this only worked for the 1st HDMI port on the pi4.

        had to change the code in the node_helper.js for the second port

        Sam

        How to add modules

        learning how to use browser developers window for css changes

        D 2 Replies Last reply Nov 16, 2022, 5:23 PM Reply Quote 0
        • D Offline
          dkhorse74 @sdetweil
          last edited by Nov 16, 2022, 5:23 PM

          @sdetweil
          Thank you I will try… I ran:

          xrandr -q

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

          1 Reply Last reply Reply Quote 1
          • D Offline
            dkhorse74 @sdetweil
            last edited by Nov 16, 2022, 5:36 PM

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

            S 1 Reply Last reply Nov 16, 2022, 6:52 PM Reply Quote 1
            • S Offline
              sdetweil @dkhorse74
              last edited by Nov 16, 2022, 6:52 PM

              @dkhorse74 the module turns it back on… another place for the hdmi port…

              the sensor just signals movement, usually a high signal…

              the module then signals wake up and starts a time…

              no more high signals, then sleep…

              Sam

              How to add modules

              learning how to use browser developers window for css changes

              D 2 Replies Last reply Nov 16, 2022, 8:26 PM Reply Quote 0
              • D Offline
                dkhorse74 @sdetweil
                last edited by Nov 16, 2022, 8:26 PM

                @sdetweil
                yep, understood… Still not able to wake up the screen… I tested the sensor with a meter and getting correct input voltage… is there anything I could be missing?

                1 Reply Last reply Reply Quote 0
                • D Offline
                  dkhorse74 @sdetweil
                  last edited by Nov 16, 2022, 9:16 PM

                  @sdetweil
                  Found another post where you shared a link on how to run a PY script to test the sensor:

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

                  Going to try this later tonight.

                  D 1 Reply Last reply Nov 17, 2022, 3:17 AM Reply Quote 0
                  • D Offline
                    dkhorse74 @dkhorse74
                    last edited by Nov 17, 2022, 3:17 AM

                    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…

                    G 1 Reply Last reply Nov 17, 2022, 9:29 AM Reply Quote 1
                    • G Offline
                      grena Module Developer @dkhorse74
                      last edited by Nov 17, 2022, 9:29 AM

                      @dkhorse74

                      Got everything to work perfectly…

                      :thumbs_up:

                      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

                      Yes, You can also run the python script of the module: python3 -u ~/MagicMirror/modules/MMM-PIR-Sensor-Lite/pir.py SENSOR_PIN

                      @sdetweil

                      another user noticed this only worked for the 1st HDMI port on the pi4.

                      Yes, I add this point of vigilance at the beginning of the readme :white_heavy_check_mark:

                      S D 2 Replies Last reply Nov 17, 2022, 12:21 PM Reply Quote 1
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