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    [MMM-PIR-Sensor] Install failing

    Scheduled Pinned Locked Moved Troubleshooting
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    • T Offline
      thoimi @Jopyth
      last edited by

      @Jopyth I had the same problem.
      Your work-around (installation) worked for me but the sensor does not seem to do anything…
      the test.py script shows me always “1” - also when nothing is moving in the room…

      J 1 Reply Last reply Reply Quote 0
      • J Offline
        Jopyth Moderator @thoimi
        last edited by Jopyth

        @thoimi Check for the correct wiring (PIN-Numbers can be confusing, there is the BCM numbering and the other one), also make sure GND and 5V are conncted correctly, adjust sensitivity to maximum and time to minimum (so it hopefully switch back and forth quickly), try covering up the sensor under a bowl or something and then put your hand in to test.

        When I set up the sensor, I also searched for the error for hours, and at the end my problem was the sensor was plugged into pin 4 (BCM) and not 7 as I thought. Also I think you need to remove the , pull_up_down=GPIO.PUD_DOWN part (PIR example).

        Helpful sticky: How to troubleshoot

        T 1 Reply Last reply Reply Quote 1
        • T Offline
          thoimi @Jopyth
          last edited by

          @Jopyth Thank you for your quick reply! :)
          I tried for hours now… I think it’s connected correctly, because when I’m switching the pin-number in the script the script shows me always “0” - with the correct pin-number it shows me “1”…
          I also put the sensor in a box - always shows me “1”… completely strange… :/

          J 1 Reply Last reply Reply Quote 0
          • J Offline
            Jopyth Moderator @thoimi
            last edited by Jopyth

            @thoimi It shows 1 because of the pull up resistor. Try removing that part, check my edited post above.

            Edit: The 1 does not mean it is wired correctly, it just shows 1 because of the pull up resistor.

            Helpful sticky: How to troubleshoot

            T 1 Reply Last reply Reply Quote 0
            • T Offline
              thoimi @Jopyth
              last edited by thoimi

              @Jopyth
              thank you for the updated script!
              the new script also shows me “Intruder detected” … i tried many variations of time and sensitivity adjustments…

              I found another script on the internet:

              from gpiozero import MotionSensor
              
              pir = MotionSensor(4)
              while True:
                  if pir.motion_detected:
                      print("Motion detected!")
              

              This script shows me also the “Motion detected” all the time…
              Maybe the PIR-Sensor itself is the problem… I will try with another Sensor next week :(

              1 Reply Last reply Reply Quote 1
              • M Offline
                Makradon
                last edited by

                Thanks for trying to help me.

                I tried what you said. It always says “motion detected”.
                I’m sure the wiring is right… I also use the dht22 sensor and that works perfectly fine. And the way you count the pins is the same… isn’t it?

                I bought a new PIR sensor… but the problem is still there.

                J 1 Reply Last reply Reply Quote 1
                • J Offline
                  Jopyth Moderator @Makradon
                  last edited by

                  @Makradon Nope, definitely not the same numbering.

                  Helpful sticky: How to troubleshoot

                  M 1 Reply Last reply Reply Quote 0
                  • M Offline
                    Makradon @Jopyth
                    last edited by Makradon

                    @Jopyth said in [MMM-PIR-Sensor] Install failing:

                    @Makradon Nope, definitely not the same numbering.

                    Now I’m confused.

                    5V is Pin 2
                    Ground is Pin 6
                    I think that is right when you count like this:

                    http://www.elektronik-kompendium.de/sites/raspberry-pi/fotos/raspberry-pi-15b.jpg

                    And when you don’t change the pin in the config file it says SensorPin 22.
                    So which is the right pin in the pic above to connect the output of the PIR sensor that it works with this module?

                    J 1 Reply Last reply Reply Quote 0
                    • J Offline
                      Jopyth Moderator @Makradon
                      last edited by Jopyth

                      @Makradon Sensor PIN 22 for the PIR-Sensor module is this one:
                      0_1485851151185_raspberry-pi-15b.jpg

                      Edit: Maybe I was confused by the diagram of the DHT22 module. It looked to me like the GPIO and WiringPi numbers are different.

                      Helpful sticky: How to troubleshoot

                      johnnyboyJ 1 Reply Last reply Reply Quote 1
                      • P Offline
                        PindaPower
                        last edited by

                        In other post they posted this link, maybe it will help??
                        https://diyhacking.com/raspberry-pi-gpio-control/

                        foxF 1 Reply Last reply Reply Quote 1
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