Motion Detector and OSX

[0v3rNuLL]

hi everyone!
I succesfully run MM2 on a macmini late 2009. Currently im testing some modules and so far so good except for one module Motion detector. I was looking on the code on node_helper.js and found the line with the command “vcgencmd display_power 0”.
In OSX not work but “pmset displaysleepnow” to put the screen on sleep does the trick and " caffeinate -u -t 1" to wake up.
So i replace the command

if (result) {
				exec("vcgencmd display_power 0", function(err, out, code) {
					if (err) {
						console.error("MMM-MotionDetector: error deactivating monitor: " + code);
					} else {
						console.log("MMM-MotionDetector: monitor has been deactivated");
					}
				});
			}

to

if (result) {
				exec("pmset displaysleepnow", function(err, out, code) {
					if (err) {
						console.error("MMM-MotionDetector: error deactivating monitor: " + code);
					} else {
						console.log("MMM-MotionDetector: monitor has been deactivated");
					}
				});
			}

Its looks like work but im getting this message on console log “pmset displaysleepnow blocked by app electron.js” and the screen keeps alive.

Is there a way to solve this?
Or maybe toggling the body to hide to get the black screen?

Thanks in advance and sorry for my bad english :)

[sdetweil]

@0v3rNuLL said in Motion Detector and OSX:

pmset displaysleepnow blocked by app electron.js

there is an npm module to work around that it appears

https://electronjs.org/docs/api/power-save-blocker

[0v3rNuLL]

hi sdetweil!

I try on node_helper.js located on MMM-MotionDetector at the begining and did not work still getting display slep prevented by electron

here is the part i change

//////Original code/////

const NodeHelper = require("node_helper");
const exec = require("child_process").exec;
///////////////////

const { powerSaveBlocker } = require('electron');

const id = powerSaveBlocker.start('prevent-app-suspension'); 

console.log(powerSaveBlocker.isStarted(id));

powerSaveBlocker.stop(id)

Its the correct place ?

Sorry but im totally new on node.
Thanks in advance

[sdetweil]

@0v3rNuLL said in Motion Detector and OSX:

complete node helper

const NodeHelper = require("node_helper");
const exec = require("child_process").exec;
const { powerSaveBlocker } = require('electron');

module.exports = NodeHelper.create({
	start: function () {
		this.started = false;
		this.isMonitorOn(function(result) {
			console.log("MMM-MotionDetector: monitor on " + result);
		});
	},

	activateMonitor: function () {
		this.isMonitorOn(function(result) {
			if (!result) {
				let id = powerSaveBlocker.start('prevent-app-suspension'); 
				if(powerSaveBlocker.isStarted(id))
			           powerSaveBlocker.stop(id)		
				exec("vcgencmd display_power 1", function(err, out, code) {
					if (err) {
						console.error("MMM-MotionDetector: error activating monitor: " + code);
					} else {
						console.log("MMM-MotionDetector: monitor has been activated");
					}
				});
			}
		});
		this.started = false;
	},

	deactivateMonitor: function () {
		this.isMonitorOn(function(result) {
			if (result) {
				let id = powerSaveBlocker.start('prevent-app-suspension'); 
				if(powerSaveBlocker.isStarted(id))
			           powerSaveBlocker.stop(id)	
				exec("vcgencmd display_power 0", function(err, out, code) {
					if (err) {
						console.error("MMM-MotionDetector: error deactivating monitor: " + code);
					} else {
						console.log("MMM-MotionDetector: monitor has been deactivated");
					}
				});
			}
		});
		this.started = false;
	},

	isMonitorOn: function(resultCallback) {
		exec("vcgencmd display_power", function(err, out, code) {
			if (err) {
				console.error("MMM-MotionDetector: error calling monitor status: " + code);
				return;
			}

			console.log("MMM-MotionDetector: monitor " + out);
			resultCallback(out.includes("=1"));
		});
	},

	// Subclass socketNotificationReceived received.
	socketNotificationReceived: function (notification, payload) {
		if (notification === "MOTION_DETECTED" && this.started === false) {
			console.log("MMM-MotionDetector: MOTION_DETECTED, score " + payload.score);
			this.started = true;
			this.activateMonitor();
		}
		if (notification === "DEACTIVATE_MONITOR" && this.started === false) {
			console.log("MMM-MotionDetector: DEACTIVATE_MONITOR");
			this.started = true;
			this.deactivateMonitor();
		}
	}
});

[0v3rNuLL]

Finally figured it out, this module now can put the screen off and on (osx el capitan).
Here is the modification for node_helpder.js

const NodeHelper = require("node_helper");

const exec = require("child_process").exec;

var cmd=require('node-cmd'); // install node-cmd (npm install node-cmd) first and add excute command osx style then change exec to cmd.get <-- return the result to analize

module.exports = NodeHelper.create({
	start: function () {
		this.started = false;
		this.isMonitorOn(function(result) {
			console.log("MMM-MotionDetector: monitor on " + result);
		});
	},

	activateMonitor: function () {
		this.isMonitorOn(function(result) {
			if (!result) {
				cmd.get('caffeinate -u -t 1', function(err, out, code) {
					if (err) {
						console.error("MMM-MotionDetector: error activating monitor: " + code);
					} else {
						console.log("MMM-MotionDetector: monitor has been activated");
					}
				});
			}
		});
		this.started = false;
	},

	deactivateMonitor: function () {
		this.isMonitorOn(function(result) {
			if (result) {
				cmd.get('pmset displaysleepnow', function(err, out, code) {

					
					if (err) {
						console.error("MMM-MotionDetector: error deactivating monitor: " + code);
					} else {
						console.log("MMM-MotionDetector: monitor has been deactivated");
					}
				});
			}
		});
		this.started = false;
	},

	isMonitorOn: function(resultCallback) {



		cmd.get('pmset -g powerstate IODisplayWrangler | tail -1 | cut -c29', function(err, out, code) {
			console.log("MMM-MotionDetector: monitor " + out);

			if (err) {
				console.error("MMM-MotionDetector: error calling monitor status: " + code);
				return;
			}

			console.log("MMM-MotionDetector: monitor " + out);
		resultCallback(out.includes("4")); // <4 is off
		});
	},

	// Subclass socketNotificationReceived received.
	socketNotificationReceived: function (notification, payload) {
		if (notification === "MOTION_DETECTED" && this.started === false) {
			console.log("MMM-MotionDetector: MOTION_DETECTED, score " + payload.score);
			this.started = true;
			this.activateMonitor();
		}
		if (notification === "DEACTIVATE_MONITOR" && this.started === false) {
			console.log("MMM-MotionDetector: DEACTIVATE_MONITOR");
			this.started = true;
			this.deactivateMonitor();
		}
	}
});

This can be marked as SOLVED :slightly_smiling_face:

[0v3rNuLL]

Icant post the entire code so, link to pastebin :)

node_helper.js