MMM-PIR-Sensor Black screen..

[Desertswing]

Hey guys could someone help me what am i doing wrong…?
i keep getting this error:

Error: Cannot find module 'onoff'
    at Module._resolveFilename (module.js:470:15)
    at Function.Module._resolveFilename (/home/pi/MagicMirror/node_modules/electron/dist/resources/electron.asar/common/reset-search-paths.js:35:12)
    at Function.Module._load (module.js:418:25)
    at Module.require (module.js:498:17)
    at require (internal/module.js:20:19)
    at Object. (/home/pi/MagicMirror/modules/MMM-PIR-Sensor/node_helper.js:11:14)
    at Object. (/home/pi/MagicMirror/modules/MMM-PIR-Sensor/node_helper.js:88:3)
    at Module._compile (module.js:571:32)
    at Object.Module._extensions..js (module.js:580:10)
    at Module.load (module.js:488:32)
Whoops! There was an uncaught exception...
{ Error: Cannot find module 'onoff'
    at Module._resolveFilename (module.js:470:15)
    at Function.Module._resolveFilename (/home/pi/MagicMirror/node_modules/electron/dist/resources/electron.asar/common/reset-search-paths.js:35:12)
    at Function.Module._load (module.js:418:25)
    at Module.require (module.js:498:17)
    at require (internal/module.js:20:19)
    at Object. (/home/pi/MagicMirror/modules/MMM-PIR-Sensor/node_helper.js:11:14)
    at Object. (/home/pi/MagicMirror/modules/MMM-PIR-Sensor/node_helper.js:88:3)
    at Module._compile (module.js:571:32)
    at Object.Module._extensions..js (module.js:580:10)
    at Module.load (module.js:488:32) code: 'MODULE_NOT_FOUND' }
MagicMirror will not quit, but it might be a good idea to check why this happened. Maybe no internet connection?
If you think this really is an issue, please open an issue on GitHub: https://github.com/MichMich/MagicMirror/issues
Launching application.

This is my config.js file:

    {
                          module: 'MMM-PIR-Sensor',
                          config: {
                            sensorPIN: 22,
                            powerSaving: true,
                        relayOnState: 1
                  }
                },

[beck0r]

Facing the same issue… The sensor itself works. Tested with a python script…
As soon as I implement the config for the sensor the screen stays black (via VNC) and the MM is not reachable via browser.

By the way, I have connected my GPIO-data-cable to PIN wiringPi 7. The description says that BCM numbering should be used, so I used 4 instead of 7 in the config. Is that correct?

(Sorry for german screenshot)

[envedede]

You are correct about the BCM pin numbering beck0r, it is not the same as the actual pin number (the BCM pin numbering origins from the processor pins if I am correct).

What I advise is to forget about this module and use https://github.com/cowboysdude/Pir-Sensor instead.
I made some slight changes to this myself, because it was still not turning on the monitor correctly.

RUN apt-get update && apt-get install -y libraspberrypi-bin and replace the scripts from the above link as follows: monitor_on.sh contains only vcgencmd display_power 1 and monitor_off.sh only the line vcgencmd display_power 0. This solved my problem for every display I used so far, being HDMI, VGA and DVI displays.

[beck0r]

Thank’s for your answer. As you have already seen I was able to solve it nealry like cowboysdude did

[Desertswing]

@envedede

How do i need to:

chmod all files: From a terminal window in your root directory:

sudo chmod +x pir.py

sudo chmod +x monitor_off.sh

sudo chmod +x monitor_on.sh

Editing pir.py

could u explain, i`m master noob with raspberry

[Desertswing]

@Desertswing
I found out how to, i forgot to place the files in root
But my screen isen`t going off yet but the light bulb i attached goed on and off when motion detected??

[Desertswing]

fixed this one !

[Duske]

I solved the Error: Cannot find module 'onoff'- Error by removing the node_modules from the MMM-PIR-Sensor directory and reinstall them by using npm i. This time, some dependencies seem to be built in with electron, and the error disappeared.

[Richard238]

This post is deleted!