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:

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.
Execute npm install to install the node dependencies.
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…

0_1464993890155_78f7b8c2-23a3-4342-ad75-84aa3c27a2ed.jpg

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.