homebridge-cec-accessory

Homebridge support for home theater devices using CEC over HDMI

About

homebridge-cec-accessory was written with Raspberry Pi in mind.

Create homebridge accessories for each CEC device you'd like to control. Currently power and volume are the only available controls, and volume only toggles mute (and probably only works with an attached receiver).

No automatic detection of attached devices is performed. For each device, create an accessory entry in your config.json.

Bug reports, feature requests, and pull requests welcome.

Installation

On a Raspberry Pi

1. Follow these instructions to install and run homebridge on Raspberry Pi. Don't give up. Hang in there.

2. Install cec-utils using package manager:
   $ apt-get install cec-utils

3. Install homebridge-platform-cec:
   $ npm install -g homebridge-cec-accessory

4. Open an issue if you run into problems.

Configuration

Here is a sample of what you might put in your ~/.homebridge/config.json

"accessories": [
  {
    "accessory": "cec",
    "name": "TV Power",
    "type": "power",
    "address": 0
  },
  {
    "accessory": "cec",
    "name": "Amp Volume",
    "type": "volume",
    "address": 5
  }
]

"name" can be any string you want, but must be unique. Try to keep it short and descriptive.

"type" must be either "power" or "volume".

"address" specifies the CEC destination address of the device, represented as an integer. Here are the possible devices:

0: TV
1: Recording 1
2: Recording 2
3: Tuner 1
4: Playback 1
5: Audio system
6: Tuner 2
7: Tuner 3
8: Playback 2
9: Recording 3
10: Tuner 4
11: Playback 4

Finding Your Devices

The best way I've found to find your devices is to use the cec-client tool which comes as part of the cec-utils package.

From the command line:
$ cec-client -d 1

Once it outputs waiting for input, type scan and press return. This might be slightly confusing, but the number to use for "address" is the value presented as device #, not the decimal separated IP-style address.

Troubleshooting

Under the covers, homebridge-cec-accessory uses the cec-client to interface with your HDMI device. Stopping and starting repeatedly can cause things to go awry. If the plugin reports that cec-client never reported ready, try restarting.

If you're having trouble doing something with this plugin, verify you can do it with cec-client. If it can't, neither can we.

Additional resources

• homebridge
• libCEC by Pulse Eight
• CEC-O-MATIC