WLED Updating screen from Home Assistant

1. Install WLED to an (e.g.) ESP32 and connect a Matrix display, set the display to typically 32×8 pixels.
2. Set the WLED Wi-Fi node name to ‘wled’ for convenience of finding the device on your network.
   • mDNS address (leave empty for no mDNS): set to wled
   • The your wled display will be located at http://wled.local/ on your local network.
3. Set the LED Configuration display option to the following:
   • Length: 256 (as there are 256 led’s)
4. Set the 2D Configuration to:
   • 2D Matrix
   • Orientation: Vertical
   • Serpentine: enabled
   • Dimension: 32 Wide by 8 High
5. In Home Assistant (HA):
   • Go to File Editor
   • Edit the file ‘configuration.yaml’
   • enter the following:
     • rest_command:
       • wled_text:
         • url: http://wled.local/json/state
         • method: POST
         • payload: ‘{ “bri”: {{brightness}},”seg”:[{“col”:{{color}}, “n”:”{{text}}”}]}’
         • See Image-1 below
6. Go to HA Settings, Automations, create a new Automation:
   • Call it WLED
   • For the Trigger enter Timer, then for minutes enter /1 that means every minute call the automation
   • For the Action enter Yaml editor mode at top right, enter the following:
     • actions:
       • action: rest_command.wled_text
         metadata: {}
         data:
         color: “[[0,0,255,0],[],[]]”
         brightness: “7”
         text: Battery SoC= {{states[‘sensor.givtcp_ce2029g093_soc’].state}}%
       • See Image-2 below
7. Finished

Image-1 Restful setup

Image-2 Automation Setup