Hi,

Now there is discovery of MQTT sensor in Home Assistant. It can be great if you can add it when we select MQTT.

You need to create a topic : homeassistant/sensor/IAMMETER_1231232/ and declare inside 1 topic by sensor.

Here is the example : https://www.home-assistant.io/integrations/sensor.mqtt/#processing-unix-epoch-timestamps

thanks for your suggestion， I have pushed this issue to our development