PIR-Sensor - put your mirror to sleep if not used

[paviro]

@DirkS glad to hear! :)

[MechMatt]

Hey Everyone!
I am trying to use this module to turn off/on a tv and im having a bit of trouble on the physical end of things… I got the module working perfectly (tested it with PIR and hdmi on/off). Now I am trying to use a relay with the PIR sensor to have the TV screen itself turn on and off. I was planning on wiring this to the TV power button (so it is essentially the same as pressing the on/off button).

I got the relay working… and I was about to take apart my tv when i thought…will even work for the on/off button? When it senses movement it will send the signal and then … turn off the tv I guess. As soon as the movement is undetected it stops sending the signal (or really pulse in this case)… just stopping wouldn’t turn the tv back on either. I guess it needs to send a pulse when it stops detecting movement, and then another one when it does again. Am I thinking about this wrong? Should I wire it to something else? Thanks in advance

[MechMatt]

@MechMatt On second thought, im having trouble with the relay as well… could you post a wiring diagram for the pi, relay, and tv? I’m not the best at electronics

[paviro]

To be honest the relay thing does not work that we’ll yet, still have to figure out some stuff related to how the Pi reacts when a monitor gets turned on after the boot process and not before.

As to your TV on/off button thing. The module simply puts s 3.3 volts on the configured Pin if the relay should be on and sets it back to 0 volts if it should be off. You can also configure it the other way around. Since I do not now how your TV button is wired I have no idea wheather it would work with this module without modifying some parts.

[joerod]

I’ve been using a python script to achieve this functionality, its worked well for me so far. I make sure the script is run at start up.

https://github.com/joerod/python/blob/master/raspberry_pi/motion.py

[paviro]

That’s exactly what this module does :)

[trividar]

Dear all,
I tried to implement the PIR-module. After I launch the MagicMirror i get always an error. What do I wrong?

That is what I have done:

1. Navigate into your MagicMirror’s modules folder and execute git clone https://github.com/paviro/MMM-PIR-Sensor.git. A new folder will appear navigate into it.
2. Execute npm install to install the node dependencies.
3. Add your user (pi?) to the gpio group by executing sudo useradd -g pi gpio.
   Reboot your Pi.

And I wrote this in config.js:

{
		module: 'MMM-PIR-Sensor',
		config: {
		               sensorPIN: '22',
			       powerSaving: true
		}
	},

After I start my mirror with npm start i get this error (from npm-debug.log):

0 info it worked if it ends with ok
1 verbose cli [ '/usr/local/bin/node', '/usr/local/bin/npm', 'start' ]
2 info using npm@3.8.6
3 info using node@v5.11.0
4 verbose run-script [ 'prestart', 'start', 'poststart' ]
5 info lifecycle magicmirror@2.0.0~prestart: magicmirror@2.0.0
6 silly lifecycle magicmirror@2.0.0~prestart: no script for prestart, continuing
7 info lifecycle magicmirror@2.0.0~start: magicmirror@2.0.0
8 verbose lifecycle magicmirror@2.0.0~start: unsafe-perm in lifecycle true
9 verbose lifecycle magicmirror@2.0.0~start: PATH: /usr/local/lib/node_modules/npm/bin/node-gyp-bin:/home/pi/MagicMirror/node_modules/.bin:/usr/local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/local/games:/usr/games
10 verbose lifecycle magicmirror@2.0.0~start: CWD: /home/pi/MagicMirror
11 silly lifecycle magicmirror@2.0.0~start: Args: [ '-c', 'electron js/electron.js' ]
12 silly lifecycle magicmirror@2.0.0~start: Returned: code: 1  signal: null
13 info lifecycle magicmirror@2.0.0~start: Failed to exec start script
14 verbose stack Error: magicmirror@2.0.0 start: `electron js/electron.js`
14 verbose stack Exit status 1
14 verbose stack     at EventEmitter.<anonymous> (/usr/local/lib/node_modules/npm/lib/utils/lifecycle.js:239:16)
14 verbose stack     at emitTwo (events.js:100:13)
14 verbose stack     at EventEmitter.emit (events.js:185:7)
14 verbose stack     at ChildProcess.<anonymous> (/usr/local/lib/node_modules/npm/lib/utils/spawn.js:24:14)
14 verbose stack     at emitTwo (events.js:100:13)
14 verbose stack     at ChildProcess.emit (events.js:185:7)
14 verbose stack     at maybeClose (internal/child_process.js:850:16)
14 verbose stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:215:5)
15 verbose pkgid magicmirror@2.0.0
16 verbose cwd /home/pi/MagicMirror
17 error Linux 4.1.17-v7+
18 error argv "/usr/local/bin/node" "/usr/local/bin/npm" "start"
19 error node v5.11.0
20 error npm  v3.8.6
21 error code ELIFECYCLE
22 error magicmirror@2.0.0 start: `electron js/electron.js`
22 error Exit status 1
23 error Failed at the magicmirror@2.0.0 start script 'electron js/electron.js'.
23 error Make sure you have the latest version of node.js and npm installed.
23 error If you do, this is most likely a problem with the magicmirror package,
23 error not with npm itself.
23 error Tell the author that this fails on your system:
23 error     electron js/electron.js
23 error You can get information on how to open an issue for this project with:
23 error     npm bugs magicmirror
23 error Or if that isn't available, you can get their info via:
23 error     npm owner ls magicmirror
23 error There is likely additional logging output above.
24 verbose exit [ 1, true ]

[Knox]

@trividar from the earlier comments make sure you set your sensorPIN to an integer. (no quotes)

config.js:

{
		module: 'MMM-PIR-Sensor',
		config: {
		               sensorPIN: 22,
			       powerSaving: true
		}
	},

[trividar]

@Knox thank you for your help. I try it, but I get the same error… I’m a noob and I realy don’t know what i do wrong…;o( Here is a foto of my error…

Have someone an idea what i do wrong?

THX a lot…

[MichMich]

As you can see it says it misses the module “wiring-pi” in the error part.

Try running npm install wiring-pi

Let me know if that solves the issue.