Turn On a Light to a Specific Color on Any Update in GitHub Repository

This n8n workflow automates the process of interacting with your Home Assistant setup based on events occurring in a GitHub repository. It acts as a bridge, allowing GitHub activity to trigger smart home actions.

What it does

This workflow simplifies the automation of smart home actions based on GitHub repository updates. Specifically, it performs the following steps:

1. Listens for GitHub Events: The workflow is triggered by any configured event (e.g., push, pull request, issue comment) in a specified GitHub repository.
2. Controls Home Assistant Device: Upon receiving a GitHub event, it sends a command to Home Assistant to turn on a light and set it to a specific color.

Prerequisites/Requirements

To use this workflow, you will need:

• n8n Account: An active n8n instance (cloud or self-hosted).
• GitHub Account: A GitHub account with access to the repository you wish to monitor.
• GitHub Credential in n8n: A GitHub OAuth or Access Token credential configured in n8n.
• Home Assistant Instance: A running Home Assistant instance with a light entity configured.
• Home Assistant Credential in n8n: A Home Assistant Long-Lived Access Token credential configured in n8n.

Setup/Usage

1. Import the Workflow:
   • Download the provided JSON file for this workflow.
   • In your n8n instance, go to "Workflows" and click "New".
   • Click the "Import from JSON" button and paste the workflow JSON or upload the file.
2. Configure GitHub Trigger:
   • Click on the "Github Trigger" node.
   • Select your existing GitHub credential or create a new one.
   • Choose the "Events" you want to listen for (e.g., Push, Pull Request, Issues).
   • Specify the "Repository" you want to monitor.
   • Important: After configuring, save the workflow and then activate it. n8n will provide a webhook URL that you need to add to your GitHub repository's webhooks settings.
     • Go to your GitHub repository -> Settings -> Webhooks -> Add webhook.
     • Paste the n8n webhook URL.
     • Select "application/json" as the content type.
     • Choose "Let me select individual events" and select the events you configured in the n8n GitHub Trigger node.
3. Configure Home Assistant Node:
   • Click on the "Home Assistant" node.
   • Select your existing Home Assistant credential or create a new one using a Long-Lived Access Token from your Home Assistant profile.
   • Set the "Resource" to Call Service.
   • Set the "Domain" to light.
   • Set the "Service" to turn_on.
   • In the "Data" field, you will need to specify the entity_id of your light and the color_name or rgb_color you want to set.
     • Example for color_name:

       {
         "entity_id": "light.your_light_entity_id",
         "color_name": "red"
       }
       

     • Example for rgb_color:

       {
         "entity_id": "light.your_light_entity_id",
         "rgb_color": [255, 0, 0]
       }
       

     • Replace light.your_light_entity_id with the actual entity ID of your light in Home Assistant.
4. Activate the Workflow: Once all credentials and configurations are set, activate the workflow by toggling the "Active" switch in the top right corner of the n8n editor.

Now, whenever an event you configured occurs in your specified GitHub repository, your light in Home Assistant will turn on and change to the chosen color!