Read the statement by Michael Teeuw here.
{HowTo} turn on/off your monitor (Time based, PIR/Button, App)
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Hello there,
I’m currently planning my project and will integrate PIR sensor + related 2.1 method through HDMI.There is one thing confusing me :
- we talk about HDMI CEC in method 2.1
- nevertheless, it seems the PIR Sensor module is “only” turning HDMI output off and that is triggering "issues such as “powersaving / no input”.
But is HDMI CEC not allowing us to send a “turn screen off” command to the monitor instead of disabling the rasp. HDMIoutput and relying / hoping on the monitor’s behaviour?
Sorry once more if I mssed the point, but would like to understand before moving forward.
Regards
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@bolish said in {HowTo} turn on/off your monitor (Time based, PIR/Button, App):
But is HDMI CEC not allowing us to send a “turn screen off” command to the monitor instead of disabling the rasp. HDMIoutput and relying / hoping on the monitor’s behaviour?
as I understand it, not many monitors/tv’s provide support for external power off/on commands…
none of my TV’s used for MM support this…
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@sdetweil Maybe you’re right! I didn’t considered that.
But seems possible, correct? By changing the actual commands to the ones defined by the libcec librairy?
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@bolish I do not know… as I said, none of my TVs support ANY commands to turn off/on…
in my MMM-SleepWake module, I use module.hide() to hide everything, leaving a blank screen… for those devices that do not provide external control…
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OK, I will then try myself when I will receive my stuff and let forums knows if working or not.
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@cruunnerr ,
Thank you very much for the detailed write up. As a beginner, i could follow the steps. I used the 2.1 Using PIR-Module. Its working well.
Few questions,
Now trying to connect LED strip-- should i remove the module from the config?
- Or 2.2 Using PIR-script will work simultaneously?
I read your following post, But, can you help me how to implement all?
@cruunnerr said in {HowTo} turn on/off your monitor (Time based, PIR/Button, App):
In my Case I am using a RGB 5050 Stripe. I am using three pins with mosfets and for the software part PIGPIOD.
Just like that: https://dordnung.de/raspberrypi-ledstrip/
Here are my scripts:
monitor on:
vcgencmd display_power 1 pigs p 17 1 pigs p 22 1 pigs p 24 1 sleep 0.06s pigs p 17 2 pigs p 22 2 pigs p 24 2 sleep 0.06s pigs p 17 3 pigs p 22 3 pigs p 24 3 sleep 0.06s pigs p 17 4 pigs p 22 4 pigs p 24 4 sleep 0.06s pigs p 17 5 pigs p 22 5 pigs p 24 5 sleep 0.06s pigs p 17 6 pigs p 22 6 pigs p 24 5 sleep 0.06s pigs p 17 7 pigs p 22 7 pigs p 24 6 sleep 0.06s pigs p 17 8 pigs p 22 8 pigs p 24 7 sleep 0.06s pigs p 17 9 pigs p 22 9 pigs p 24 8 sleep 0.06s pigs p 17 10 pigs p 22 10 pigs p 24 9 sleep 0.06s pigs p 17 11 pigs p 22 11 pigs p 24 10 sleep 0.06s pigs p 17 12 pigs p 22 12 pigs p 24 11Monitor off:
pigs p 17 12 pigs p 22 12 pigs p 24 11 sleep 0.06s pigs p 17 11 pigs p 22 11 pigs p 24 10 sleep 0.06s pigs p 17 10 pigs p 22 10 pigs p 24 9 sleep 0.06s pigs p 17 9 pigs p 22 9 pigs p 24 8 sleep 0.06s pigs p 17 8 pigs p 22 8 pigs p 24 7 sleep 0.06s pigs p 17 7 pigs p 22 7 pigs p 24 6 sleep 0.06s pigs p 17 6 pigs p 22 6 pigs p 24 5 sleep 0.06s pigs p 17 5 pigs p 22 5 pigs p 24 5 sleep 0.06s pigs p 17 4 pigs p 22 4 pigs p 24 4 sleep 0.06s pigs p 17 4 pigs p 22 4 pigs p 24 4 sleep 0.06s pigs p 17 3 pigs p 22 3 pigs p 24 3 sleep 0.06s pigs p 17 2 pigs p 22 2 pigs p 24 2 vcgencmd display_power 0 sleep 0.06s pigs p 17 1 pigs p 22 1 pigs p 24 1 sleep 0.06s pigs p 17 0 pigs p 22 0 pigs p 24 0 -
@cruunnerr said in {HowTo} turn on/off your monitor (Time based, PIR/Button, App):
Sure, my pir.py is the same as shown on point 2.2 but with other GPIO used
#!/usr/bin/env python import sys import time import RPi.GPIO as io import subprocess import pigpio io.setmode(io.BCM) SHUTOFF_DELAY = 119 # seconds PIR_PIN = 25 # 22 on the board LED_PIN = 16 def main(): io.setup(PIR_PIN, io.IN) io.setup(LED_PIN, io.OUT) turned_off = False last_motion_time = time.time() while True: if io.input(PIR_PIN): last_motion_time = time.time() io.output(LED_PIN, io.LOW) print ".", sys.stdout.flush() if turned_off: turned_off = False turn_on() else: if not turned_off and time.time() > (last_motion_time + SHUTOFF_DELAY): turned_off = True turn_off() if not turned_off and time.time() > (last_motion_time + 1): io.output(LED_PIN, io.HIGH) time.sleep(.1) def turn_on(): subprocess.call("sh /home/pi/lights_on.sh", shell=True) def turn_off(): subprocess.call("sh /home/pi/lights_off.sh", shell=True) if __name__ == '__main__': try: main() except KeyboardInterrupt: io.cleanup()Because i use some LED Stripes which turn on when the pir detects movement my “monitor_on.sh” is called “lights_on.sh”
lights_on.sh:
vcgencmd display_power 1 pigs p 17 1 pigs p 22 1 pigs p 24 1 sleep 0.06s pigs p 17 2 pigs p 22 2 pigs p 24 2 sleep 0.06s pigs p 17 3 pigs p 22 3 pigs p 24 3 sleep 0.06s pigs p 17 4 pigs p 22 4 pigs p 24 4 sleep 0.06s pigs p 17 5 pigs p 22 5 pigs p 24 5 sleep 0.06s pigs p 17 6 pigs p 22 6 pigs p 24 5 sleep 0.06s pigs p 17 7 pigs p 22 7 pigs p 24 6 sleep 0.06s pigs p 17 8 pigs p 22 8 pigs p 24 7 sleep 0.06s pigs p 17 9 pigs p 22 9 pigs p 24 8 sleep 0.06s pigs p 17 10 pigs p 22 10 pigs p 24 9 sleep 0.06s pigs p 17 11 pigs p 22 11 pigs p 24 10 sleep 0.06s pigs p 17 12 pigs p 22 12 pigs p 24 11lights_off.sh:
pigs p 17 12 pigs p 22 12 pigs p 24 11 sleep 0.06s pigs p 17 11 pigs p 22 11 pigs p 24 10 sleep 0.06s pigs p 17 10 pigs p 22 10 pigs p 24 9 sleep 0.06s pigs p 17 9 pigs p 22 9 pigs p 24 8 sleep 0.06s pigs p 17 8 pigs p 22 8 pigs p 24 7 sleep 0.06s pigs p 17 7 pigs p 22 7 pigs p 24 6 sleep 0.06s pigs p 17 6 pigs p 22 6 pigs p 24 5 sleep 0.06s pigs p 17 5 pigs p 22 5 pigs p 24 5 sleep 0.06s pigs p 17 4 pigs p 22 4 pigs p 24 4 sleep 0.06s pigs p 17 4 pigs p 22 4 pigs p 24 4 sleep 0.06s pigs p 17 3 pigs p 22 3 pigs p 24 3 sleep 0.06s pigs p 17 2 pigs p 22 2 pigs p 24 2 vcgencmd display_power 0 sleep 0.06s pigs p 17 1 pigs p 22 1 pigs p 24 1 sleep 0.06s pigs p 17 0 pigs p 22 0 pigs p 24 0
But what exactly doesn’t work with my script? Maybe i can help :)
Got this ( https://dordnung.de/raspberrypi-ledstrip/) working successfully on another raspberry running stretch.
now going to try this on Magicmirror. But i got confused, because PIR sensor is on GPIO22 and the same GPIO22 is used in led strip (5050).
Can you guide , which GPIO to be assigned? -
@chandra move one to a different GPIO pin and change the config as required for that
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@sdetweil said in {HowTo} turn on/off your monitor (Time based, PIR/Button, App):
@chandra move one to a different GPIO pin and change the config as required for that
thank you, but as i mentioned, i’m just a beginner. just copying and pasting.:face_with_stuck-out_tongue_winking_eye:
So lets fix led on GPIO22 and move PIR to another. -
I am glad, you got it :)
As you can see i used PIN 25 for the PIR and 17,22,24 for the LED’s.
Keep in mind, that the physical GPIO Number isn’t the same as with BCM numbering !!! Thats important!
In the script (line 9) u can see that it uses the BCM Numbering. That means the following:
BCM pin 17 = physical PIN 11
BCM pin 22 = physical PIN 15
BCM pin 24 = physical PIN 18
BCM pin 25 = physical PIN 22So the LED’s must be connected with physical PIN 11,15,18 and the PIR on PIN 22.
Hope that was clear ^^
My english isn’t very well. -
@cruunnerr yeh, don’t know why use the BCM ever… use the actual pin numbers… hurts my head trying to figure out the pin mappings…
io.setmode(io.BOARD) instead of io.setmode(io.BCM)
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@cruunnerr said in {HowTo} turn on/off your monitor (Time based, PIR/Button, App):
I am glad, you got it :)
As you can see i used PIN 25 for the PIR and 17,22,24 for the LED’s.
Keep in mind, that the physical GPIO Number isn’t the same as with BCM numbering !!! Thats important!
In the script (line 9) u can see that it uses the BCM Numbering. That means the following:
BCM pin 17 = physical PIN 11
BCM pin 22 = physical PIN 15
BCM pin 24 = physical PIN 18
BCM pin 25 = physical PIN 22So the LED’s must be connected with physical PIN 11,15,18 and the PIR on PIN 22.
Hope that was clear ^^
My english isn’t very well.Yup, I connected like that. There is a problem. Disabled the PIR Module.
Screen goes off after 120sec, But when it sense the motion, the screen is black.
My magicmirror is not set to “auto start” , I use “cd ~/MagicMirror
DISPLAY=:0 npm start”.“python pir.py” is working properly. I used the steps described in 2.2.
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One thing found was: when edited the rc.local using “sudo nano /etc/rc.local” and writing “python /home/pi/pir.py &” above exit 0", the “&” is still there.
It was supposed to look like:#!/bin/sh -e # # rc.local # # This script is executed at the end of each multiuser runlevel. # Make sure that the script will "exit 0" on success or any other # value on error. # # In order to enable or disable this script just change the execution # bits. # # By default this script does nothing. # Print the IP address _IP=$(hostname -I) || true if [ "$_IP" ]; then printf "My IP address is %s\n" "$_IP" fi python /home/pi/pir.py exit 0But, i am getting
#!/bin/sh -e # # rc.local # # This script is executed at the end of each multiuser runlevel. # Make sure that the script will "exit 0" on success or any other # value on error. # # In order to enable or disable this script just change the execution # bits. # # By default this script does nothing. # Print the IP address _IP=$(hostname -I) || true if [ "$_IP" ]; then printf "My IP address is %s\n" "$_IP" fi python /home/pi/pir.py & exit 0What is the mistake im doing? ( presently checking the screen on off only)
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There is no mistake as far as i can see.
The “&” just need to be written, when a second or third command follows.
So when u are just using this one command both (with or without the “&”) should work
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@chandra said in {HowTo} turn on/off your monitor (Time based, PIR/Button, App):
Screen goes off after 120sec, But when it sense the motion, the screen is black.
Hint from the main post:
To check if it works just go into terminal via ssh and type:
sudo tvservice -o to turn off
sudo tvservice -p to turn onedit: for some monitors the following commands work better. Please use them if your monitor needs it:
vcgencmd display_power 0 to turn off
vcgencmd display_power 1 to turn onedit:
also check this:
https://forum.magicmirror.builders/topic/6291/howto-turn-on-off-your-monitor-time-based-pir-button-app/11 -
The script works as intended but I would like to use the module.
The module doesnt turn off my monitor. I have the correct pin labeled.
What else can I check? Where is the python code for the module? is there a pir.py file somewhere? -
@cruunnerr said in {HowTo} turn on/off your monitor (Time based, PIR/Button, App):
There is no mistake as far as i can see.
The “&” just need to be written, when a second or third command follows.
So when u are just using this one command both (with or without the “&”) should work
thank you. Got a confidence.
As mentioned earlier , i don’t have a experience with computer programming. -
@cruunnerr said in {HowTo} turn on/off your monitor (Time based, PIR/Button, App):
@chandra said in {HowTo} turn on/off your monitor (Time based, PIR/Button, App):
Screen goes off after 120sec, But when it sense the motion, the screen is black.
Hint from the main post:
To check if it works just go into terminal via ssh and type:
sudo tvservice -o to turn off
sudo tvservice -p to turn onedit: for some monitors the following commands work better. Please use them if your monitor needs it:
vcgencmd display_power 0 to turn off
vcgencmd display_power 1 to turn onedit:
also check this:
https://forum.magicmirror.builders/topic/6291/howto-turn-on-off-your-monitor-time-based-pir-button-app/11A Big Thanks to all. Gone through all the posts.
I split up the things.
First, checked the screen on and off (by editing the script). Tried the steps. screen on was the problem. so skipped that.
second, checked the led lights on and off alone. It worked like a charm.Then gone back to screen on to work together. The problem was with monitor,old one,connected by hdmi-vga adapter.
Found a solution:
Addedsudo tvservice -p sudo chvt 9 && sudo chvt 7This worked :smiling_face_with_heart-eyes: .
Now , both working together. I used your lights_on.sh and lights_off.sh and modified as per my liking. -
This post is deleted! -
I have the strangest problem i have not been able to solve for days now.
I am using 2.2 external pir.py script and it works flawlessly to display blank screen.
However, if screen orientation set to vertical via /boot/config.txt with either display_rotate=1 or 3, the monitor wont blank out !! :dizzy_face:
Its just blink for 1 second and nothing happen.
What I have tried:
- check monitor status via xset -q (dpms) - it says monitor off but the TV stays on
- run xset dpms force off - again the TV only blink for 1 second nothing else happen
- Changed GL driver from raspi-config and reboot
- Tried with other TV (both are LG brand 42" and 65")
Both tvservice -p and vcgencmd display_power 0 will work with any screen orientation but unfortunately it will display “no signal” on the TV.
Can anybody please help me out? This is really frustrating :dizzy_face: :dizzy_face:
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