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    A New Chapter for MagicMirror: The Community Takes the Lead
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    Motion Detector

    Scheduled Pinned Locked Moved Utilities
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    • C Offline
      chengstark
      last edited by

      my monitor won’t turn back on
      when I run “npm start dev”, it shows “compare result=Infinity,Infinity;0,0” , seems like it can’t capture any movement
      the camera module works outside MagicMirror
      when I tried “sudo modprobe bcm2835-v4l2”, it says “modprobe: invalid option – ‘4’”
      how can I fix this

      1 Reply Last reply Reply Quote 0
      • C Offline
        cpramhofer
        last edited by

        Hi @cowboysdude

        thank you for your files and the explanation. what i don´t understand is how this all works together with the “Motion Detector” - i would prefere to use a camera instead of a PIR Sensor but as far as i see i have to install the pir.py file which is calling the on&off files and referring to the PIN with the connected PIR sensor.

        is there a way to use the on&off files with the “Motion Detector” Module?

        greets
        Christoph

        cowboysdudeC 1 Reply Last reply Reply Quote 0
        • C Offline
          cpramhofer
          last edited by

          Hi guys

          as it looks that it isn´t an MM problem but an Pi Problem…another try:

          sudo nano /etc/kbd/config

          change the values to zero

          BLANK_TIME=0
          POWERDOWN_TIME=0

          good luck

          D 1 Reply Last reply Reply Quote 0
          • cowboysdudeC Offline
            cowboysdude Module Developer @cpramhofer
            last edited by

            @cpramhofer There is a module for camera control… cannot remember the name of it but look around here I KNOW there’s one here.

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            • C Offline
              cpramhofer
              last edited by

              hi @cowboysdude,

              i´m sorry - i thought we are all speaking about the camera based motion detection by @alexyak
              https://github.com/alexyak/motiondetector

              have a nice sunday!

              cowboysdudeC 1 Reply Last reply Reply Quote 0
              • cowboysdudeC Offline
                cowboysdude Module Developer @cpramhofer
                last edited by

                @cpramhofer No that’s ok… I think this thread is getting mixed between PIR sensor and camera… opps

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                • bheplerB Offline
                  bhepler Module Developer
                  last edited by bhepler

                  Greetings! I’m slowly working my way through this thread and trying to figure out what’s going on here.

                  What works: configurable timeout for the motiondetector seems to work just fine. Turns the screen off. Interestingly, if I’m viewing the mirror via my desktop browser, refreshing the page will turn the monitor on.

                  What doesn’t work: turning the screen on. Even after entering sudo modprobe bcm2835-vl2

                  Additionally, I’m seeing this in the console with the developer tools enabled:
                  getUserMedia() no longer works on insecure origins. To use this feature, you should consider switching your application to a secure origin, such as HTTPS. See https://goo.gl/rStTGz for more details.
                  :8080/modules/motiondetector//webcamcapture.js:78 NavigatorUserMediaError

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                  • paphkoP Offline
                    paphko
                    last edited by

                    I just tried this module but cpu load made me stop using it. Please tell me, how busy is your Raspberry with and without the motiondetector module? Mine is as follows on a Raspberry Pi 2:

                    • With motiondetector enabled, there is always an electron process with ~100% cpu
                    • With motiondetector disabled, I observed one or two electron processes with up to 15% cpu

                    I used a dedicated motion daemon on my old version of the mirror to switch on the screen on motion and I think I will set it up again. IIRC, it used ~40% cpu on a (single-core) Raspberry Pi 1 B+. What is your opinion?

                    bheplerB 1 Reply Last reply Reply Quote 0
                    • bheplerB Offline
                      bhepler Module Developer @paphko
                      last edited by

                      @paphko I just looked at my Pi 3 and I’m showing 40% usage with the motion detection module running (and failing). I suspect it’s the constant pic-compare-pic-compare loop that runs. It would be trivial to insert a wait in that loop to lower the CPU usage. Even a delay of 750 ms would probably help quite a bit.

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                      • A Offline
                        alexyak
                        last edited by

                        @bhepler you’re right. putting a delay should help with the CPU usage.

                        bheplerB 1 Reply Last reply Reply Quote 0
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