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Magic Mirror Module: Buttons

This a module for Magic Mirror² to act based on button presses via GPIO. It is capable of connecting multiple buttons at once, which can be individually configured. It is basically a generalized version of the Button module, original idea comes from @PtrBld. However it only sends out notifications to other modules.

For example this can be used to send notifications to the following modules:

Installation

Clone this repository in your modules folder, and install dependencies:

cd ~/MagicMirror/modules # adapt directory if you are using a different one
git clone https://github.com/Jopyth/MMM-Buttons.git
cd MMM-Buttons
npm install # this can take a while

Configuration

Add the module to your modules array in your config.js.

Below is a simple example (needs Remote Control installed), with two buttons conneted, on pins 24 and 25. One switches on the display on a short press, and switches it off on a long press. The other does not do anything on a short press, but shuts down the system after keeping it pressed for 3 seconds with an explanatory user alert.

{
    module: 'MMM-Buttons',
    config: {
        buttons: [
            {
                pin: 25,
                name: "monitor_control",
                longPress: {
                    notification: "REMOTE_ACTION",
                    payload: {action: "MONITOROFF"}
                },
                shortPress: {
                    notification: "REMOTE_ACTION",
                    payload: {action: "MONITORON"}
                }
            },
            {
                pin: 24,
                name: "power",
                longPress: {
                    title: "Power off",
                    message: "Keep pressed for 3 seconds to shut down",
                    imageFA: "power-off",
                    notification: "REMOTE_ACTION",
                    payload: {action: "SHUTDOWN"}
                },
                shortPress: undefined
            }
        ]
    }
},

Module Configuration

Here is full documentation of options for the modules configuration:

Option Description
buttons An array of button configurations. See Button Configuration below. Default is [] (no buttons registered).
minShortPressTime Minimum duration to trigger a short press in ms. Default is 0.
maxShortPressTime Maximum duration to trigger a short press in ms. Default is 500.
minLongPressTime Minimum time needed to trigger a long press in ms. Default is 3000. Any press duration between maxShortPressTime and minLongPressTime does not do anything.
bounceTimeout Duration to ignore bouncing (unintentional doubble press on the button).

Button Configuration

Each button configuration is an object with the following properties:

Property Description
pin Pin number of the button input (use BCM numbering).
name Name of the button for easier identification and log output.
longPress Choose what notification to send on a long press. See Notification Configuration below. Use undefined if nothing should trigger.
shortPress Choose what notification to send on a short press. See Notification Configuration below. Use undefined if nothing should trigger.

Notification Configuration

Each notification configuration is an object with the following properties:

Property Description
notification Notification name.
payload Notification payload. Can be anything, for example a string or an object.
title, message, and imageFA Optional (only for long press notifications): If you want to display a message before executing set its options here. See Alert documentation for their meaning.

License

The MIT License (MIT)

Copyright © 2016 Joseph Bethge

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.