Values in MQTT Explorer but not appearing as Device in Home Assistant

Hello - I have set up an ESP32 to read Victron VE.direct serial messages from a Smart Shunt and pass it to my MQTT broker, following this guide: GitHub - RalfJL/VE.Direct2MQTT: Use a esp32 to push VE.Direct ASCII messages to a MQTT server

In MQTT explorer, I am able to see the expected topic I configured on the ESP32, and the values it is updating with all look sensible. However, when I go to Home Assistant → Setup → Devices, I don’t see this appearing as a Device. I tried reloading the HA MQTT Integration and that didn’t seem to do anything. Any thoughts on what I could try?

  • Core2024.5.4
  • Supervisor2024.08.0
  • Operating System12.2
  • Frontend20240501.1

Values in MQTT is a great first step, but if you don’t have a discovery topic or configured manually the MQTT sensors in HA, HA doesn’t know about them.