Magic Mirror Module: CAP1188

This a module for Magic Mirror² to act based on touch (capacitive) buttons via the CAP1188 touch-button controller. It is capable of connecting up to 8 buttons, which can be individually configured. This module is forked from the module for the MPR121 MMM-MPR121 which is based on the awesome MMM-Buttons module

This module 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 in your modules folder, and install dependencies:

cd ~/MagicMirror/modules # adapt directory if you are using a different one
git clone https://github.com/ASCIIcat/MMM-CAP1188.git
cd MMM-CAP1188
npm install

Note: On some installations you may need to use this command instead:

npm install --unsafe-perm

Configuration

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

Below is a simple example (needs Remote Control installed), with two touch-buttons (electrodes) conneted, on inputs 0 and 1 of the CAP1188. One switches on the display on a short touch, and switches it off on a long touch. The other does not do anything on a short touch, but shuts down the system after keeping it touched for 3 seconds with an explanatory user alert.

{
    module: 'MMM-CAP1188',
    config: {
        buttons: [
            {
                pin: 0,
                name: "monitor_control",
                longPress: {
                    notification: "REMOTE_ACTION",
                    payload: {action: "MONITOROFF"}
                },
                shortPress: {
                    notification: "REMOTE_ACTION",
                    payload: {action: "MONITORON"}
                }
            },
            {
                pin: 1,
                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.

Button Configuration

Each button configuration is an object with the following properties:

Property	Description
pin	Input pin number of the button input on the MPR121 (0 to 11)
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.