Node-RED + Home Assistant: team work

Combine the power of Node-RED and Home Assistant.

Examples:

Initial setup

You need to install some extra Home Assistant nodes in Node-RED, so they can communicate with each other.

To get data from Home Assistant you need, in Node-RED, to install the extra nodes node-red-contrib-home-assistant-websocket.

Go to the hamburger menu on the top right and select the menu item “Manage pallete”
Select the tab Install and enter “home-assistant-websocket”
Click on the install button to install it.
After the installation, you see a set new node in your left sidebar.

Go to the sidebar and open the Configuration nodes (the wheel icon).
Under the section ‘On all flows’ scroll to server and double-click on the Home Assistant element.
Define the Base URL, this must be the url where Home Assistant can be reached from Node-RED. If you run both in a docker in the same network, you can use the name of the docker image as host name. For example http://homeassistant:8123 Now Node-RED reach Home Assistant from inside the docker network. It’s also possible to use the IP-address, but this can change, and then it access it outside the docker and via your network which can act slower.
The Access token can be created when you logged in into Home Assistant. Select your user from the menu and scroll down on your profile to “Long-Lived Access Tokens” and click on Create Token. Give it a name like ‘Node-RED’. Now you get the token, copy the token in the field.