MMM-PIR-Sensor

This an extension for the MagicMirror. It can monitor a PIR motion sensor and put your mirror to sleep if nobody uses it by turning off HDMI output or by turning off the mirror via a relay.

Installation

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 usermod -a -G gpio pi.
Execute sudo chmod u+s /opt/vc/bin/tvservice && sudo chmod u+s /bin/chvt to allow turning on/off the hdmi output.
Reboot your Pi.

Using the module

To use this module, add it to the modules array in the config/config.js file:

modules: [
	{
		module: 'MMM-PIR-Sensor',
		config: {
			// See 'Configuration options' for more information.
		}
	}
]

Configuration options

The following properties can be configured:

Option	Description
`sensorPIN`	The pin your PIR-sensor is connected to. Possible values: `int` Default value: `22` Note: Please use BCM-numbering.
`invertSensorValue`	Invert the sensor value on the given sensorPIN. 1 -> no pressence, 0 -> presence detected Possible values: `boolean` Default value: `false`
`powerSaving`	Should the monitor be turned off if no user is present? (via HDMI or relay) Possible values: `boolean` Default value: `true`
`powerSavingDelay`	Additional software side delay (in seconds) before the monitor will be turned off. Possible values: `int` Default value: `0`
`relayPIN`	If you want to use a relay to turn of the mirror provide the pin here. If no pin is provided HDMI is turned off instead. Possible values: `int` Default value: `none` Note: Please use BCM-numbering.
`relayOnState`	GPIO-state your relay is turned on. Possible values: `int` Default value: `1`

Developer Notes

This module broadcasts a USER_PRESENCE notification with the payload beeing true or false you can use it to pause or disable your module.

Dependencies

wiring-pi (installed via npm install)

The MIT License (MIT)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

The software is provided “as is”, without warranty of any kind, express or implied, including but not limited to the warranties of merchantability, fitness for a particular purpose and noninfringement. In no event shall the authors or copyright holders be liable for any claim, damages or other liability, whether in an action of contract, tort or otherwise, arising from, out of or in connection with the software or the use or other dealings in the software.