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

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 usermod -a -G gpio pi.
4. Execute sudo chmod u+s /opt/vc/bin/tvservice && sudo chmod u+s /bin/chvt to allow turning on/off the hdmi output.
5. 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.
sensorState	Invert the GPIO-state that triggers user presence. For example, a 0 value would tell the mirror to trigger user presence when the GPIO pin receives 0 value. Possible values: int (0 or 1) Default value: 1
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: false Note: Please use BCM-numbering.
relayState	GPIO-state your relay is turned on. Possible values: int (0 or 1) Default value: 1
alwaysOnPin	If you would like to use a GPIO pin to trigger power-saving mode. Ideal for users who want to have a physical switch that controls whether or not to use the motion sensor. Possible values: int Default value: false Note: Please use BCM-numbering.
alwaysOnState	GPIO-state to trigger always-on. Possible values: int (0 or 1) Default value: 1
alwaysOffPin	If you would like to use a GPIO pin to trigger sleep mode. Ideal for users who want to have a physical switch to shut off the screen (perhaps the mirror is too bright at night). Possible values: int Default value: false Note: Please use BCM-numbering.
alwaysOffState	GPIO-state to trigger always-off. Possible values: int (0 or 1) Default value: 1
powerSavingNotification	To display a notification before to switch screen off Possible values: boolean Default value: false Note: Need the default module "alert" to be declared on config.js file.
powerSavingMessage	Message notification to display before to switch screen off Default value: "Monitor will be turn Off by PIR module"

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)

Copyright © 2016 Paul-Vincent Roll

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.