Hallo , I want to monitor the average temperature and the power consumption per day.
Does persistence. „ once per day „ work. I found information it doesn’t .
What’s true.
Thank you
Depends on the persistence database you are using. For rrd4j you must save a value at least once per minute for the database to work. MapDB only saves one value so it’s not useful for analysis. All the rest can save as often or rarely as you require to include once per day.
Did you know:
But still it’s true that it’s not a tool for data analytics
Thank you Rich.
Any suggestions how to save average temperature and power consumption per day for creating a graph of that data ?
Thanks
Klaus-Dieter 
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