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README.md
config.h
xmas-baubles.ino

README.md

xmas-baubles

This project adds an easy way to control LED Xmas Smart Baubles from Home Assistant, an amazing, extensible, open-source home automation system.

I followed Gosse Adema's instructable to create the baubles and his origical code but wanted to change the effects and wanted to be able to control the baubles from Home Assistant, so I adapted the code and took extracts from corbanmailloux's esp-mqtt-rgb-led project. As of version 0.26, the MQTT JSON light platform has been merged into Home Assistant.

By sending a JSON payload (in an MQTT message), Home Assistant can include whichever fields are necessary, reducing the round trips from 3 to 1. For example, this is a sample payload including most of the fields:

{
  "state": "ON",
  "effect": "sparkle",
}

Installation/Configuration

To set this system up, you need to configure the MQTT JSON light component in Home Assistant and set up a light to control. This guide assumes that you already have Home Assistant set up and running. If not, see the installation guides here.

The Home Assistant Side

  1. In your configuration.yaml, add the following:

    light:
      - platform: mqtt_json
        name: mqtt_json_light_1
        state_topic: "home/json_brightness"
        command_topic: "home/json_brightness/set"
        brightness: false
        effect: true
        effect_list: [sparkle, rainbow, uniglow]
        optimistic: false
        qos: 0
    
    
  2. Set the name, state_topic, and command_topic to values that make sense for you.

  3. Restart Home Assistant. Depending on how you installed it, the process differs. For a Raspberry Pi All-in-One install, use sudo systemctl restart home-assistant.service (or just restart the Pi).

The Light Side

  1. Using the Library Manager in the Arduino IDE, install ArduinoJSON, PubSubClient, and Adafruit_NeoPixel. You can find the Library Manager in the "Sketch" menu under "Include Library" -> "Manage Libraries..."
  2. Update the config-sample.h file with your settings for pin numbers, WiFi settings, and MQTT settings.
  3. Ensure that the CONFIG_MQTT_CLIENT_ID setting is a unique value for your network.
  4. Set CONFIG_MQTT_TOPIC_STATE and CONFIG_MQTT_TOPIC_SET to match the values you put in your configuration.yaml.
  5. Save the configuration file as config.h.
  6. Open the .ino file in the Arduino IDE and upload to a "WeMos D1 R1 & Mini" with the correct connections.