Hi,
I’ve answer you in the other discussion but I think it’s a good idea to summarize all proposal in this discussion. At the following the copy of my answer…
For me is the same. It’s sufficient a simple csv file (one per day) with a data every 1 or 5 minutes. Structure of the file like: “time[hh:mm]”, “temp. set”, “temp.”, “Humid.”, “Relay status”, “program name”.
I like local store for the data but it’s only my opinion and a my preference.
Thanks at all