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"homebridge-http-speaker" Plugin

With this plugin you can create HomeKit speaker services which will redirect commands to the specified http API server. This could be handy to outsource the "brains" of the speaker to an separate application, maybe in an entirely different language.

Compatibility notice

The speaker service was introduced within HAP with the release of iOS 10. It is meant for video doorbells to indicate that they support audio output. However Apps like the Eve App just display the service and you can control your speaker volume. Though neither the Home App nor Siri support controlling standalone Speaker services.

Installation

First of all you should already have installed Homebridge on your device. Follow the instructions over at the HomeBridge Repo

To install the homebridge-http-speaker plugin simply run sudo npm install -g homebridge-http-speaker

Configuration

Here is an example configuration. Note that the mute section is the only required one (required by HomeKit Accessory Protocol). volume is fully optional. power was my decision to include it in the code. The power attribute is not foreseen for the speaker but the Eve App manages to handle this 'abnormal' characteristic. We will see what the Home App will do with it.

Every call needs to be status code 200 if successful. The statusUrl call of mute (and of power) expects an 0 or 1 for off or on with no html markup inside the body of the response. The statusUrlof volume expects a value from 0 to 100 with no html markup inside the body. The %s in the setUrl call will be replaced with the volume.

    "accessories": [
        {
            "accessory": "HTTP-SPEAKER",
            "name": "Your Speaker name",
            
            "mute": {
                "onUrl": "http://localhost/api/muteOn",
                "offUrl": "http://localhost/api/muteOff",

                "statusUrl": "http://localhost/api/muteStatus"
            },
            
            "volume": {
                "statusUrl": "http://localhost/api/volumeStatus",
                "setUrl": "http://localhost/api/volumeUpdate/%s"
            },
            
            "power": {
                "statusUrl": "http://localhost/api/powerStatus",
                "onUrl": "http://localhost/api/powerOn",
                "offUrl": "http://localhost/api/powerOff"
            }
        }
    ]