MMM-Buttons

This is a module for MagicMirror² 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:

• Remote Control
• Profile Switcher

Installation

Clone this repository into your modules directory and install the dependencies:

cd ~/MagicMirror/modules # adapt directory if you are using a different one
git clone https://github.com/MarcLandis/MMM-Buttons
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 array of objects 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.