So mqtt_statestream provides a really simple way to publish all (or some) entities to MQTT, with options for also publishing attributes and last changed timestamps. However, it surprised me that there’s not a similar “client” component for this functionality to consume easily consume these entities on another HA instance.
What I want to do is simply to “mirror” some sensors from one HA instance on another, with (at least) the state/value and last changed timestamps available.
So far, I have publishing the states using mqtt_statestream, and consuming them using mqtt platform sensors. Is that the best way to go? mqtt_statestream is able to publish attributes/timestamps, but it does so on separate topics that are not picked up by the mqtt sensors. I see there’s a json_attribute_template on the mqtt sensors, but of course the attributes aren’t published as json, so I don’t see how that’s going to work.
It seems to me this is harder than it could be. Am I on the right track? What’s the best way to get the timestamps copied over together with the state? Thanks!
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