What is the update trigger for MQTT sensor based on a home assistant entity

[mekaneck (Rick)]

Answer to my own question:

Mqtt sensor - how to load attributes

I just went through a similar issue so documenting my results in this thread. MQTT sensors are only updated in home assistant when their associated topic is updated. In other words: The sensor’s state is only updated when the state_topic is updated on the MQTT server The sensor’s attributes are only updated when the json_attributes_topic is updated on the MQTT server The sensor’s availability is only updated when the availability_topic is updated on the MQTT server etc… If you need multiple a…