hass-light-sync

hass-light-sync is a program to capture the display's image and send the average color to a light in Home Assistant. It's similar to solutions like Philips Hue Sync and Ambilight, but only supports a single light at the moment.

Demo (Video)

Installation

Precompiled Binaries (Windows)

Download the zip-Archive from Releases and edit the settings.json file with your server information, and run the hass-light-sync.exe.

Compile it yourself

Install the Rust SDK and clone the git repo. Run:

cargo build --release 

and copy the hass-light-sync.exe from the target folder anywhere you like. Then copy the settings.json file from the root of the project to the same directory, and edit it to match your server info.

Configuration

{
    "api_endpoint": "http://<IP>:<PORT>", 
    "light_entity_name": "light.[entity]",
    "token": "LONG ACCESS TOKEN HERE",  
    "grab_interval": 50,// interval in ms to grab frame
    "skip_pixels": 10,  // only sample n-th pixel (1 -> native, 2 -> 1/2 res etc.)
                        // saves cpu processing

    "smoothing_factor": 0.0, // factor to average out frames:
    // old_frame * smoothing_factor + new_frame * (1-smoothing_factor)   
    // 0 -> disable,   0.25 -> 25 % old frame, 75 % new frame etc.

    "monitor_id": 0 // ID of the target monitor
}