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

    UPDATE: Replaced my PIR-Sensor with a Doppler Microwave Sensor.

    Scheduled Pinned Locked Moved Tutorials
    103 Posts 17 Posters 91.1k Views 25 Watching
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    • lavolp3L Offline
      lavolp3 Module Developer @cowboysdude
      last edited by

      @cowboysdude
      am I seeing it right that also the side of the case looking at you is aluminium taped?
      So the whole case is taped in your case?

      How to troubleshoot modules
      MMM-soccer v2, MMM-AVStock

      1 Reply Last reply Reply Quote 0
      • lavolp3L Offline
        lavolp3 Module Developer
        last edited by

        @cowboysdude @Fozi Guys, which module are you using for the recognition?
        I can’t get neither MMM-PIR-Sensor nor MMM-PIR to work currently. Both have the same problem with epoll which is installed via the node module “onoff”, if I see correctly.
        What are you using?
        THe mirror won’t load with any of the modules activated giving the error

         The module '/home/pi/MagicMirror/modules/MMM-PIR/node_modules/onoff/node_modules/epoll/build/Release/epoll.node'
        was compiled against a different Node.js version using
        NODE_MODULE_VERSION 67. This version of Node.js requires
        NODE_MODULE_VERSION 64. Please try re-compiling or re-installing
        the module (for instance, using `npm rebuild` or `npm install`).
        

        @cowboysdude I remember you’re using your own script?
        @Fozi you?

        node v 11.4.0
        npm v 6.13.0

        How to troubleshoot modules
        MMM-soccer v2, MMM-AVStock

        cowboysdudeC FoziF 2 Replies Last reply Reply Quote 0
        • cowboysdudeC Offline
          cowboysdude Module Developer @lavolp3
          last edited by cowboysdude

          @lavolp3 I use my own for that… it’s not a module but it’s right here.

          https://github.com/cowboysdude/Pir-Sensor

          Easy to follow :)

          The box is just a cardboard box taped with alum duct tape. I am however waiting for my trimmer resister so I can tune it down and take it out of the box. I only want the mirror to come on when someone walks up to it…say like 2 ft. away… so it doesn’t come on when I walk by the bathroom doorway… looks more like a pro thing :)

          1 Reply Last reply Reply Quote 0
          • FoziF Offline
            Fozi Project Sponsor @lavolp3
            last edited by Fozi

            @lavolp3 I use MMM-PIR-Sensor without any modifications. Are you using @paviro master oder any other fork of the module?
            As I see, you have more recent npm/node versions installed.
            I am still on node 10.17.0 / npm 6.11.3.

            Edit: I’d recommend to try the script from @cowboysdude . It is robust against any node.js stuff as it written in python.

            HowTo: Replace PIR Sensor with a RCWL-0516 Microwave Sensor

            1 Reply Last reply Reply Quote 0
            • NortonN Offline
              Norton
              last edited by

              This post is deleted!
              FoziF 1 Reply Last reply Reply Quote -1
              • FoziF Offline
                Fozi Project Sponsor @Norton
                last edited by

                @Norton said in UPDATE: Replaced my PIR-Sensor with a Doppler Microwave Sensor.:

                It is important to replace the PIR sensor with a Doppler Microwave Sensor.

                This spam bot is sooo right!:face_with_tears_of_joy:

                HowTo: Replace PIR Sensor with a RCWL-0516 Microwave Sensor

                1 Reply Last reply Reply Quote 0
                • B Offline
                  bachoo786 @Fozi
                  last edited by

                  @Fozi Hi
                  Can i solder pin 1 and 2 of the resistor to the radar sensor? I accidentally broke pin no 3.

                  FoziF 1 Reply Last reply Reply Quote 0
                  • FoziF Offline
                    Fozi Project Sponsor @bachoo786
                    last edited by

                    @bachoo786 yes, you can also use pin 1 and 2.

                    An example:
                    The max value of the resistor (Rmax) is between pin 1 and 3.
                    Between pin 1 and 2 is the restitor value R1, and
                    between pin 2 and 3 is the resistor value R2.

                    Rmax = R1 + R2. (or R1=Rmax - R2, resp, R2=Rmax - R1)

                    Thus, you can use both options (R1 pin 1/2 or R2 pin 2/3).

                    HowTo: Replace PIR Sensor with a RCWL-0516 Microwave Sensor

                    B 1 Reply Last reply Reply Quote 0
                    • B Offline
                      bachoo786 @Fozi
                      last edited by

                      @Fozi so I got a new radar sensor set the resistance to 80ohms which would give me around 40 to 50cm detection distance. I am using @cowboysdude script.

                      My mm is running on my rpi 4b 4g and at present its connected to my TV. However the rada sensor is not working as the script is meant to detect motion and if there is no motion it would turn the tv off after 20 seconds. I tried many times but have failed.

                      Any ideas? Or maybe my sensor is not working. Is there a simple script that I could test the sensor?

                      Thanks.

                      FoziF cowboysdudeC 2 Replies Last reply Reply Quote 0
                      • FoziF Offline
                        Fozi Project Sponsor @bachoo786
                        last edited by

                        @bachoo786 First re-check if the sensor is cabled correctly to the GPIO as described in my tutorial. Further check if the resistor is soldered correctly to the sensor. Maybe there is a “cold soldering joint”. Sounds trivial, but the devil is a squirrel (old german saying 0_1578041639036_41a3b8fa-8272-448b-8e93-36c6fb58809d-image.png )
                        Then, extend the detection range to the max, to check if the sensor is generally OK (200 Ohms) and re-run @cowboysdude script. If this works, then reduce the resistor step by step until you reach the desired detection range. Theoretically 80 Ohms should provide a range of 40-50 cm, but from my experience this may vary strongly as the resistor value does not correspond linearly to the detection range.

                        HowTo: Replace PIR Sensor with a RCWL-0516 Microwave Sensor

                        B 2 Replies Last reply Reply Quote 0
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