LWT MQTT Sensor (Weather station)

@weado wrote:

Hello,

I build a weather station with an ESP8266 on battery, and it’s works with the MQTT Protocol.
I implement the LWT to know if my esp8266 work well, but I don’t understand the integration in HA.
I use correctly the “available_topic” but I don’t have an information (sensor or icon) if my LWT is Off or On, on HA.

    availability_topic: "weather_station/LWT"
    payload_available: "Online"
    payload_not_available: "Offline"

Could you help me ?

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