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MMM-Energy-Saver - an easy way to suspend/resume modules based on a PIR sensor.


  • Module Developer

    Hi,

    Just released a new, small module called mmm-energy-saver.

    This module works in conjunction with MMM-Pir-Sensor to automatically suspend & resume all your modules based on movement detection. Furthermore, this module allows you to specify times when all the modules are suspended and your HDMI-connected screen is turned off as well.

    Please note that the movement detection will not work unless you have the MMM-Pir-Sensor module installed (and working).

    By design, this module has fairly limited functionality - which is nice because it makes it very easy to set up & use. If you, however, want a lot more control over the individual modules including setting specific timers based on days or showing alerts, I’d recommend checking out the MMM-ModuleScheduler module instead.

    Anyway, check out the new module here:


  • Project Sponsor Module Developer

    Hello,

    interesting module, I worked myself too a lot about this topic for my Mirror, but the main problem was that most of the module don’t define the suspend/resume functions, and consequently even when they are hidden they continue to run in background and request to update their datas…

    So my solution was to update most of the module I am using to add suspend/resume function to stop the update according to the module.hidden and the notification “USER_PRESENCE” (sent by the PIR sensor module).

    Did you find a smarter way ?
    What is your module really doing to save the energy ?

    Thank you for your clues !



  • In my MMM-SleepWake module I do module.hide(). Not suspend

    I do this cause I cannot turn off/on my TV monitor, and no HDMI signal generates the ugly no input screen

    I use a camera for motion detection


  • Module Developer

    @agp42 said in MMM-Energy-Saver - an easy way to suspend/resume modules based on a PIR sensor.:

    Hello,

    interesting module, I worked myself too a lot about this topic for my Mirror, but the main problem was that most of the module don’t define the suspend/resume functions, and consequently even when they are hidden they continue to run in background and request to update their datas…
    So my solution was to update most of the module I am using to add suspend/resume function to stop the update according to the module.hidden and the notification “USER_PRESENCE” (sent by the PIR sensor module).

    Did you find a smarter way ?
    What is your module really doing to save the energy ?

    Thank you for your clues !

    So … the mmm-energy-saver module really does 2 things:

    1. It allows you to create a simple daily schedule where all modules are hidden and where your monitor is turned off. For instance, on my own mirror, this is set to take place between midnight and 7 am. During this time, any notifications from your motion sensor is ignored.

    2. Outside of this schedule (deepsleep), it continually listens for the USER_PRESENCE notification from the mmm-pir-sensor module. When this notification is received it shows all modules (if they were previously hidden) and runs a timer in the background. If the timer runs out before any new USER_PRESENCE notifications are received, this module then hides all other modules on the mirror.

    But this doesn’t solve the issue that you also mention - even though a module is hidden, most modules continue to load data in the background - which is a huge waste.

    So I did the same thing as you - I updated all my own modules to extend the standard suspend and resume functionality that already exists in the magic mirror framework.

    You can see example code here:
    https://github.com/michael5r/mmm-nest-status/blob/fcbf291a26374e32901e993f9e109465819f59bf/mmm-nest-status.js#L613

    Basically, when the suspend command is received, I set a module state called sleeping which also stops the module from getting new data.

    When the resume command is received, the sleeping state is set to false and it immediately polls for fresh module data.

    Would be nice if more modules supported this behavior!


  • Module Developer

    @sdetweil It’s the same thing, though - when do you module.hide(), you trigger the suspend method for that particular module.



  • @michael5r also note that modules can be hidden on purpose. So wakeup should not show all modules.

    My MMM-SleepWake saves a list of modules already hidden on sleep.

    This also works across sleep/wake voice commands by MMM-voice/lucy



  • @michael5r understand and agree


  • Module Developer

    @sdetweil said in MMM-Energy-Saver - an easy way to suspend/resume modules based on a PIR sensor.:

    @michael5r also note that modules can be hidden on purpose. So wakeup should not show all modules.

    My MMM-SleepWake saves a list of modules already hidden on sleep.

    This also works across sleep/wake voice commands by MMM-voice/lucy

    Sure - and in that case, the mmm-energy-saver module probably isn’t a good fit. But it works great when you only need to do what I describe above 🙂