Read the statement by Michael Teeuw here.
MMM-PIR-Sensor problems
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I have just checked my Mirror I am at pin 22
The 8th pin on the bottom -
Yes, it is connected to the 8th bottom from the left…
Building the mirror, setting up the pi and magic mirror with modules - no problems… until trying to use the PIR…
HDMI signal is sending still in blank screen… magic mirror does not turn back on… it still does not care about the PIR.
at what position are your potentio meters and the jumper ?
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My PIR has no jumper. From banggood
The two potentiometers are both in the middle position.
There are a few more topics on the screen not reacting properly a few LCD screens do not support switching thru HDMI.I tested the PIR on an Arduino Nano to see when it was detecting and at what range, but you can also do that with a Raspberry.
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Normally the monitor is switching to standby if there is no signal from HDMI. I think the problem is the Raspberry. Found nothing to fix this.
I am also wondering why magic mirror switches to no signal/blank screen after a couple of minutes. Is there a possibility to change this to a fix number of seconds? Seems as if the MMM-PIR-setting for switching on/off in seconds has no effect.
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Maybe you have screensaver not disabled.
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Now, screensaver is disabled… PIR not working. Display is switched on all the time…
Perhaps, the problem could be the installed GPIO 2.25 instead of a newer version?
After running npm install wiring-pi version 2.25 is still running. -
You could try if you are using the right GPIO by pulling the pin Up.
Take a 10k Resistor one side on 5V and the other side tap the GPIO pin that is what the PIR would do. Then you can check if you use the proper pin.
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I am sure I am using GPIO22.
I am wondering about the display, which is not switching off. It stays on all the time.
Could it be a problem with the fact that the user “pi” is logged in ?
Why does the display not switch off ?
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Maybe your PIR is always HIGH
thats is why you should check with a resistor if it works.
Or disconnect the OUT pin to see in the screen stays off. -
Maybe you are right. I tried using MagicMirror-Display-Controller and started the pir.py-python script… the output: “Motion detected… setting timer to 180 seconds”.
Okay, I am a bit afraid, because it is a bit difficult to take a look at the Raspberry Pi - I have to change the place after all is working and final.
Let´s say, the PIN is telling HIGH (=motion detected) the whole time. What do I have to do then ? I am new to linux/RPi and learning day to day.
I try without data connection PIR->RPi
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As I wrote in my previous message check if the GPIO is low when you disconnect the PIR
I always check all parts with an Arduino Nano or Uno to see if it works and if it needs settings it is easily done before installing.
This evening I will not be online any much longer. -
Thanks for helping…
Without the PIR-Data-Pin connected to GPIO 22, the script does not show the message “motion detected”. It is counting from 180 to 0. Think this means the GPIO is LOW then.
I think all I need now is what to do next. Broken PIR ? Wrong PIR-settings (Potentio meters, Jumper) ?
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You could try to use a pull-up resistor maybe the PIR output is 5V
Check this website. Otherwise your PIR is broken. If you are in the Netherlands i can post by snailmail another one to you that works for sure,
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I have 8 HC-SR501 bought a while ago. Some of them are green, some blue.
Tested all of them now…
The message is the same: OUT connected… Motion detected. OUT not connected, no motion detected… Think, this means OUT and HIGH are working.
But, the PIR sensor delivers motion detected permanently if connected.
So, according to your PullUp-Link I have to put a 10kohm resistor between Raspberry Pi GPIO 22 and PIR-OUT ?
I am wondering why none of those tutorials are telling this. Some of my PIRs should work with 3.3V-OUT ?
I am afraid there is a mistake I am making, but I don´t know which one and how to solve it. That´s the last part missing for my mirror, the important part.
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What you could do is put a 10k Resistor between GPIO 22 and GND. if the PIR disconnects your PIN is pulled LOW.
PIRs may give different signals my PIR only gives a high (3v3)
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Have you tried to set the timer potentiometer (Haltezeit in your picture) on the PIR-sensor to minimum? I have the very same PIR-sensors and they are working very well without any additional resistors.
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Ok, think, it is working… not perfectly, but working.
Could you take a picture of your potent meters AND jumper ?
Have set them both to the left position. Would help a lot.A lot of people are walking the way the mirror is mounted to the wall. Finally, I would like the mirror to switch on if a person stays in front of it for 10 seconds. Don’t know exactly how to do this.
At the moment it switches on in 1 second.
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@blebbens
That’s a picture I took before mounting it to the wall. Taking a new picture will be a bit difficult now. Hope it helps.
Btw, I don’t use the MMM-PIR-sensor module. Initially I did though and I didn’t change the jumper. The sensor is set to “high”, in case it’s not clear from the picture. -
I put the potentio meters to the left position - like in your picture.
The screen switches on in seconds… looking for a possibility to turn it on if someone stands in front of the mirror for 10 seconds.
Using MagicMirror-Display-Controller instead of MMM-PIR-SENSOR.
Hope, this could be done using right “time” potentio meter. Not sure.
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