If I have multiple devices, temperature controllers in my case, what is the best way to arrange topic names? I’ve seen examples with one temperature probe publish data to a topic named “sensor/temperature”. What part of that defines the actual device publishing the data or am I misunderstanding the purpose of topics? I’d like to be able to query a single temp controller and what temp it reported and whether it was running heating or cooling at that time.
On client side, I’d need to be able to subscribe to commands that go to an individual temp controller (like adjust set temp) or broadcast to all (like shut off all).
Perhaps my questions are too vague, hoping someone can read my mind 