MagicMirror² v2.13.0 is available! For more information about this release, check out this topic.

Auto power on and off



  • Hi there,

    I was wondering if there was technology out there where i can set a timer to make the mirror turn on and off automatically at a specific time each day. I cant find anything. Does anyone else use something similar?


  • Project Sponsor

    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



  • @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


  • Module Developer

    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.



  • Yes, @BKeyport idea is highly recommended:-)



  • 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.



  • @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?



  • 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



  • 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"}}
                ]
            }
       }
    
    

  • Module Developer

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


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