@sdetweil how would i get sudo echo into my MMM-Brightness.js? this Is my module rn. Ik its probably very wrong but i don’t actually know javascript so…

Module.register("MMM-Brightness", {
  defaults: {
  	startingBrightness: 130,
  	jump: 10,
  	path_to_backlight: '/sys/class/backlight/rpi_backlight/brightness',
  },
  start: function () {
  	self = this;
  	var brightness = this.config.startingBrightness;
  },
  notificationReceived: function() {
  if (notification === 'BRIGHTNESS_UP') {
          var brightness = brightness-this.config.jump;}
  if (notification === 'BRIGHTNESS_DOWN') {
          var brightness = brightness+this.config.jump;}
  },
  loaded: function(callback) {
	this.finishLoading();
	Log.log(this.name + ' is loaded!');
	callback();
}
})

@sdetweil that makes sense, my module is just a way to control the brightness of the official ras pi display. all the ones out there do it by sunrise and sunset and I want to be able to do it from on-screen buttons. I was planning on using this, https://github.com/tosti007/MMM-TouchNavigation for the buttons and just using notifications to control the module but this seems to be getting complicated. I just want to be able to edit the number within /sys/class/backlight/rpi_backlight/brightness. I was using the info in here https://www.raspberrypi.org/forums/viewtopic.php?t=214086 to figure it out. Do you have any suggestions for how to do it

@sdetweil so I would probably be using fs. I’m trying to edit a file on the in the /sys/class. so with research, it would probably be:

fs.writeFile(/sys/class/___.txt, '18', function (err) { 
                        if (err)
        console.log(err);
});)

this was taken from a website so I assume its right. I’ve been using vnc viewer to do everything from the pi but I will look into those other file managers. Thanks so much

I’m learning JS, just to develop a module, but I’m not sure how to edit a file outside magic mirror. I’ve seen people use fs and request, but I’m not sure what those are if someone could help.

I have the Ras Pi 7 Inch display and I’d Like to change the brightness of the screen at night. I’d also rather not go into the app every time. Are there any modules besides MMM-RemoteControl that can adjust the brightness?

@Bugsounet I’m Sorry I dont understand what your saying. Maybe a translation error

@sdetweil I’m pretty sure you can have the raspi turn on and off the screen through the hdmi. I will have to check on that.

@sdetweil so then ill prob get an hdmi monitor

@sdetweil if I lower the brightness and contrast to very low, will I still have glow?

@sdetweil do you have light bleed through when it’s blanked?