Auto power on and off

garbleflux

I use via crontab the CEC-function of the Monitor:

turn on monitor weekdays 8 o clock:

0 8 * * 1-5 echo “on 0” | cec-client -s -d 1 >/dev/null 2>&1

turn on monitor on saturday & sunday 9.30 o clock:

30 9 * * 0,6 echo “on 0” | cec-client -s -d 1 >/dev/null 2>&1

turn off monitor daily at 20.30 o clock

30 20 * * * echo ‘standby 0’ | cec-client -s -d 1 >/dev/null 2>&1

this works like a charme since over one year
regards Mike

thgmirror

@natebrown enter crontab -e at the prompt and insert the data garbieflux mentioned.
If you struggle with the syntax, you can use several internet-pages to define the rules:
https://crontab-generator.org/
or
https://crontab.guru/ for exapmle

I use
@reboot sudo sh -c ‘echo none > /sys/class/leds/led0/trigger’
@reboot sudo sh -c ‘echo 0 > /sys/class/leds/led0/brightness’
@reboot sudo sh -c ‘echo none > /sys/class/leds/led1/trigger’
@reboot sudo sh -c ‘echo 0 > /sys/class/leds/led1/brightness’
to turn off the LEDs at my RPI 3+

Btw, an # at the beginning of the line marks it as a comment.

Or use a time-switch to turn on and off the whole construction.

Thomas

BKeyport

If you use a time switch to turn on and off the entire construction, you should still have a crontab to shut down the pi prior to shutting down the power, so you don’t corrupt your media.

thgmirror

Yes, @BKeyport idea is highly recommended:-)

ember1205

I have a WiFi plug that switches the device on at a specific time in the morning.

I use a cron job entry to shut the Pi down at a specific time at night.

I have the WiFi plug turn off at a specific time at night, five minutes after the time I’ve configured the cron job to shut the Pi down.

There is also an IFTTT integration where you can have the shutdown script make a specific call to create a calendar entry on a Google calendar and IFTTT will pick up that entry and use it to trigger the power-off event for the plug. I used to do this until IFTTT changed their account structure and I’ve been moving away from using any of their integrations.

natebrown

@garbleflux
Thanks, so i want it to turn on at 6:30 every morning and turn off at 9 every night, If i copy and paste that into crontab -e, will that work? What is the exact code i need?

hamid

I did not test with there are motion detectors that turn on the screen when moving the front screen does not know how it works

https://www.swedx.se/product_info.php?cPath=137_12800030&products_id=1955

TJuTZu

You can use also MMM-ModuleScheduler with MMM-Remote-Control to turn monitor on/off if you don’t need to turn off the whole system.

It works similar to crontab

Here is example from my mirror configuration

   {
      module: 'MMM-Remote-Control'
      // uncomment the following line to show the URL of the remote control on the mirror
      // , position: 'bottom_left'
      // you can hide this module afterwards from the remote control itself
    },

   {
        module: 'MMM-ModuleScheduler',
        config: {
            notification_schedule: [
                // TURN THE MONITOR/SCREEN ON At 10:00
                {notification: 'REMOTE_ACTION', schedule: '00 10 * * *', payload: {action: "MONITORON"}},
                // TURN THE MONITOR/SCREEN OFF At 00:00 
                {notification: 'REMOTE_ACTION', schedule: '00 00 * * *', payload: {action: "MONITOROFF"}}
            ]
        }
   }

BKeyport

If you wanna go down that path, there’s MMM-Remote-Control, too.

rejas

@hamid you can use a standard webcam (like the pi cam or a playstation camera like I do) and my module https://github.com/rejas/MMM-MotionDetector to detect motion and turn your monitor off and on.