Read the statement by Michael Teeuw here.
Motion Detector
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Hi Guys,
had exactly the same problem with mit Raspi NOIR Cam V2.1.
thesudo modprobe bcm2835-v4l2command solved my problem.maybe you should add this Tipp in your Readme as many people out there have the same problem.
greets
Christoph -
Hi Christoph
Unfortunately it didn’t work for me;o( Today my screen did not turn on. My Pi works and I can connect over ssh but I have to stop and start my MM and thank works again fine. I just think that my camera stop working if there is no motion a long time (during night).I got some errors during the night:
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First of all, I also had the problem which could be solved by adding
@reboot sudo modprobe bcm2835-v4l2at the last line of the crontab. Thank you very much!
It works fine for some hours, but suddenly the monitor does not show up again.
I cannot see error messages, but the following commands does not get an answer anymore…/opt/vc/bin/tvservice -sThere is no return value anymore, it is just loading forever.
In the log it looks like this:mm-0 monitor :state 0x12000a [HDMI CEA (16) RGB lim 16:9], 1920x1080 @ 60.00Hz, progressive mm-0 monitor has been activated mm-0 monitor :state 0x120002 [TV is off] mm-0 monitor has been deactivated mm-0 monitor :state 0x12000a [HDMI CEA (16) RGB lim 16:9], 1920x1080 @ 60.00Hz, progressive mm-0 monitor has been activated mm-0 monitor :state 0x120002 [TV is off] mm-0 monitor has been deactivated mm-0 monitor :state 0x12000a [HDMI CEA (16) RGB lim 16:9], 1920x1080 @ 60.00Hz, progressive mm-0 monitor : mm-0 monitor : mm-0 monitor has been deactivated mm-0 monitor :As soon as the problem occures, the command
/opt/vc/bin/tvservice --preferred && sudo chvt 6 && sudo chvt 7also does not switch the monitor on again.
It seems that the tvservice command just got a problem after some hours… Any idea how to solve this?
I need to restart the pi to get the monitor on again, after that everything works fine for some hours…Best regards,
alihallo -
Hi alihallo,
i have exact the same problem. i also added the
@reboot sudo modprobe bcm2835-v4l2command into my cronetab.but once the screen is off for some hours it will not switch on again.
for me it seems that the RPi 3 is going into some kind of sleepmode if the monitor is switched off for too long.
kind regards
Christoph -
This post is deleted! -
Just as a side note, I have the same issue that my RasPi screen does not switch on again after a random time. But I am running v1 of the mirror (so not this motion detector module) and I use motion for motion detection. My guess is that this is an issue with the RasPi firmware because it was working fine several months ago (and I was frequently updating RasPi firmware)…
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I just run a straight cron job with a file called pir.py that runs two other files…
monitor_on.sh
monitor_off.shIt’s not incorporated into the mirror it runs the entire pi and I’ve had great luck with it! :)
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hi @cowboysdude ,
could you please give me (and maybe others) the detailed instruction how these files look in detail and where those are located?
thanks a lot in advance,
Christoph -
here is what i have done, actually it works - i will watch it a few days.
switch to /bin/
cd /
cd binopen nano and create a shell script
sudo nano monitor_on.sh
write the “On” Command in it and save with Ctrl+x
/opt/vc/bin/tvservice --preferred && sudo chvt 6 && sudo chat 7
open nano and create another shell script
sudo nano monitor_off.sh
write the “Off” Command in it and save with Ctrl+x
/opt/vc/bin/tvservice -o
make both shell scripts executable
sudo chmod +x monitor_off.sh
sudo chmod +x monitor_on.shopen the crontab and add the following at the end
switches the monitor off and on every 15 minutes. this is for experimenting, i will look how it works and will set the
time up as.
15 * * * * sudo /bin/monitor_off.sh
15 * * * * sudo /bin/monitor_on.sh
@reboot sudo modprobe bcm2835-vl2 -
Well hey Thanks for making that easy… was JUST working on that LOL I’m putting it on github with instructions and the files…
