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    A New Chapter for MagicMirror: The Community Takes the Lead
    Read the statement by Michael Teeuw here.

    Hide modules when display goes off through PIR (power saving)

    Scheduled Pinned Locked Moved Unsolved Requests
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    • T Offline
      thedk
      last edited by

      Maybe i understand the modules like pir-hide-all, energy-saver, ect. wrong, but there is no modul that hides all modules when the display goes off through the PIR just for energy saving?
      Is it possible to make a modul that hides all modules that i have installed?

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      • S Offline
        sdetweil
        last edited by sdetweil

        Well, there is a module… it needs one little script written for PIR.

        My MMM-SleepWake. It takes triggers from some external to MM.

        And supports the Pi, xdms, and blanking the screen for energystar devices.

        So, that suggests I need to provide that script… Thanks

        Sam

        How to add modules

        learning how to use browser developers window for css changes

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        • T Offline
          thedk
          last edited by

          Saw this too, but forgot it.
          If somebody would write the script for the PIR it would be great.

          1 Reply Last reply Reply Quote 0
          • ejay-ibmE Offline
            ejay-ibm Project Sponsor Module Developer
            last edited by

            Hi @thedk ,

            I think my post is related to that too.
            https://forum.magicmirror.builders/topic/9792/blank-screen-issue-another-one-again-after-one-hour-or-so/7

            It look like you figured out faster than me the lack of communication of the PIR modules to the other .

            You will see in the post that I have open a git to the PIR dev to ask for some help .

            Hopefully we will find a way to make it .

            I’m not a dev at all but I understand coding .
            I confident that playing with some code for a week or 2 will bring me to what I want.

            If we don’t get consistent answer in the meantime I’ll ( If i’m able to make it) definitly share with the community my findings.

            Cheers

            1 Reply Last reply Reply Quote 0
            • T Offline
              thedk
              last edited by

              Thanks for the link.
              Then let’s see what will happen :)

              ejay-ibmE 1 Reply Last reply Reply Quote 0
              • ejay-ibmE Offline
                ejay-ibm Project Sponsor Module Developer @thedk
                last edited by

                @thedk Hi ,
                I finally manage to find a solution that works quite good.
                I do not deserve the credit for the solutions, only for the implementation as it merges multiple sources.
                First : PIR need a first trigger to work .
                Workaround : Make the HDMI OFF when the mirror start ( so your screen doesn’t stay ON always until someone pass in front of the miror )

                For this Edit :
                in the MMM-PIR-SENSOR folder
                node_helper.js
                around line 139

                this.started = true;
                    self.deactivateMonitor();  // add this to turn off monitor at startup . 
                

                Then to deactivate the idle / sleep mode of the modules due to MMM-Assistant

                Still in the node_helper.js modify line 34 like :

                exec(“/usr/bin/vcgencmd display_power 1 && xdotool key ctrl+r”, null); // add here xdotool key ctrl+r

                You need to install xdotool for this. That will allow to simulate the ctrl+r from keybaord that refresh the module therefore bring them back on screen .

                I set in the config.js file the pir module to put the screen off after 15 mins

                “powerSavingDelay”: “900”,

                I applied the same setting in MMM-AssistantMk2.js

                onIdle: {
                timer: 10006015, // if you don’t want to use this feature, just set timer as 0 or command as “”
                command: “HIDEMODULES”

                Summary When I start my mirror the screen is off. The PIR detect my presence and turn it ON .
                After 15 mins the screen goes off and the modules goes in sleep .

                As soon as the user presence is detected again , the screen goes on and modules are refreshed and come back .

                Hope this helps .

                EJ

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                • brobergB Offline
                  broberg Project Sponsor
                  last edited by

                  Maybe I don’t understand your question… but

                  Hiding modules only with css (i.e hiding them on screen) does nothing for the power saving.
                  You need the monitor to go in to sleep for any power to be saved.

                  The Pi still runs when you hide the modules, not much power to save there, And I don’t really think the modules reload when hiding/showing them. But I can be wrong haven’t looked in to the code on the Hide/show part.

                  ejay-ibmE 1 Reply Last reply Reply Quote 0
                  • S Offline
                    sdetweil
                    last edited by

                    modules do not reload… their content is not shown when hidden

                    Sam

                    How to add modules

                    learning how to use browser developers window for css changes

                    1 Reply Last reply Reply Quote 1
                    • T Offline
                      thedk
                      last edited by

                      But it would save CPU Power if the Modules would be hide or not?

                      S 1 Reply Last reply Reply Quote 0
                      • S Offline
                        sdetweil @thedk
                        last edited by

                        @thedk unlikely… or so small as to be unmeasurable

                        Sam

                        How to add modules

                        learning how to use browser developers window for css changes

                        J 1 Reply Last reply Reply Quote 1
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