I’m rather new to OpenHAB(2.3); I have persistence on InfluxDB with Grafana. It’s logging my temperatures.
What I would like to see is the difference between the outside and inside temperature.
I probably want to make a rule of it, but I have not ventured in that part of OH.
So how can I show a graph line with the difference between two temperatures?
- In Grafana - It doesn’t seem to be able to do calculations. Perhaps anyone can give me an example of a smart query?
- In Persistance extensions - The extensions mentioned in the doc are mostly related to do calculations on a single value and it’s previous values. Anything I’m not seeing here?
- Make a rule that creates a new Item - I have no idea how to do this or if this is even possible.
Any help or pointers appreciated.