• Recent
  • Tags
  • Unsolved
  • Solved
  • MagicMirror² Repository
  • Documentation
  • 3rd-Party-Modules
  • Donate
  • Discord
  • Register
  • Login
MagicMirror Forum
  • Recent
  • Tags
  • Unsolved
  • Solved
  • MagicMirror² Repository
  • Documentation
  • 3rd-Party-Modules
  • Donate
  • Discord
  • Register
  • Login
A New Chapter for MagicMirror: The Community Takes the Lead
Read the statement by Michael Teeuw here.

Microwave/doppler motion detection -- anyone got it to work?

Scheduled Pinned Locked Moved Troubleshooting
10 Posts 4 Posters 6.0k Views 6 Watching
Loading More Posts
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • R Offline
    randomnoise @invisible.inq
    last edited by Sep 3, 2017, 7:03 PM

    @invisible.inq can you confirm the input changes by using “gpio read (pin no eg 22)” before & after moving in front of the sensor? Is there a chance you need a resistor wired in?

    1 Reply Last reply Reply Quote 0
    • I Offline
      invisible.inq
      last edited by invisible.inq Sep 3, 2017, 7:15 PM Sep 3, 2017, 7:14 PM

      I borrowed a little python script to check the status of my sensors, and it seems to show me just fine when there is motion-event (using BCM PIN 17)

      I’m not sure about needing a resistor…?

      #!/usr/bin/python
      # -*- coding: utf-8 -*-
      
      import RPi.GPIO as GPIO
      import time
      
      GPIO.setmode(GPIO.BCM)
      PIR_PIN = 17
      GPIO.setup(PIR_PIN, GPIO.IN)
      
      def MOTION(PIR_PIN):
                     print ("Motion Detected! " + time.strftime("%H:%M:%S")) 
      
      print "PIR Module Test (CTRL+C to exit)"
      time.sleep(2)
      print "Ready"
      
      try:
                     GPIO.add_event_detect(PIR_PIN, GPIO.RISING, callback=MOTION)
                     while 1:
                                    time.sleep(100)
      except KeyboardInterrupt:
                     print " Quit"
                     GPIO.cleanup()
      
      R 1 Reply Last reply Sep 3, 2017, 7:27 PM Reply Quote 0
      • R Offline
        randomnoise @invisible.inq
        last edited by Sep 3, 2017, 7:27 PM

        @invisible.inq OK, sounds like you confirmed it does work then (sometimes certain devices need a resistor wired in series with either gnd or the input pin so just thought it may have been a factor).

        Only other obvious thing I can think of is to confirm pin no in your mmm-pir-sensor config is correct… Your script uses bcm numbering pin 17 so configuration needs 17 as well.

        1 Reply Last reply Reply Quote 0
        • G Offline
          goprojojo
          last edited by Sep 28, 2017, 10:05 PM

          Were you able to resolve the issue? I’m looking for a microwave sensor too. What sensor do you have?

          I 1 Reply Last reply Sep 28, 2017, 10:32 PM Reply Quote 0
          • I Offline
            invisible.inq @goprojojo
            last edited by Sep 28, 2017, 10:32 PM

            @goprojojo Short answer is no.

            I’ve tried the HFS-DC06, XYC-WB-D0, and the RCWL-0516 chips. I’ve tried the MMM-PIR-Sensor and PIR-Sensor modules.

            Some observations:

            • Some of these chips are junk. I bought a pack of 4 RCWL-0516 chips from amazon, and only 2 of them worked. The HFS-DC06 chip has two adjustable settings, but I’m not convinced they work correctly
              -MMM-PIR-Sensor (paviro) seems to be less of a draw on resources. PIR-Sensor (cowboysdude) seemed simpler to me, but never worked quite as well
            • I do first test with the python code above, to verify that I’m getting signal. That’s a simple way to test the chips. But for whatever reason, that hasn’t translated into signal that either of the modules would act on correctly
            • At one point, I thought I had it working, but I was getting a lot of false-positives. Unfortunately I didn’t have any capacitors laying around to build a pi-filter. When I got them ordered, I couldn’t recreate the false positives. Pi-filter: schematic from this [thread]
              (https://github.com/jdesbonnet/RCWL-0516/issues/2). It’s simple enough to assemble on a breadboard.
            • At the same time, I also grabbed some ferrite beads based on this [thread].
              (https://helentronica.com/2016/01/11/magic-mirror-with-motion-detector/). I figure that’s a good precaution.
            • Depending on how old your monitor is, shutting off and turning on the HDMI outlet may be more trouble than it’s worth. If you just want the screen to go blank, this has worked ok for me when I manually activate it:
              xset -display :0 s blank && xset -display :0 dpms force off

            I plan to spend some more time on it this weekend. I’ll let you know if I get it working.

            1 Reply Last reply Reply Quote 1
            • J Offline
              j.e.f.f Project Sponsor Module Developer
              last edited by Sep 29, 2017, 4:35 PM

              I’m going to guess you issue isn’t the sensor, but instead how your monitor reacts to the vcgencmd command. Had you tried installing LibCEC and sending direct CEC power commands?

              I 1 Reply Last reply Sep 29, 2017, 4:42 PM Reply Quote 1
              • I Offline
                invisible.inq @j.e.f.f
                last edited by Sep 29, 2017, 4:42 PM

                @j.e.f.f I don’t think so, but i could be off. As a second datapoint, I’m having the module run a shell script on status change, which first writes the current time to a log file, before then triggering xset or vcgencmd. I don’t think it’s vcgencmd that is causing me issue.

                1 Reply Last reply Reply Quote 0
                • 1 / 1
                • First post
                  Last post
                Enjoying MagicMirror? Please consider a donation!
                MagicMirror created by Michael Teeuw.
                Forum managed by Sam, technical setup by Karsten.
                This forum is using NodeBB as its core | Contributors
                Contact | Privacy Policy