Problem with persistence and graphic

[vzorglub (Vincent Regaud)]

You can use any other database execpt mapdb which only stores the last value.

But our are talking about a room here not a formula 1 car. The temperature variations are not that fast.

Have a look at this:

InfluxDB+Grafana persistence and graphing

Store your openHAB item states in an InfluxDB time-series datastore and create highly customizable diagrams with Grafana. These diagrams can in return be included in your sitemap as images. [image] Following this guide, you will install InfluxDB and Grafana, make openHAB store data in an InfluxDB database, make Grafana fetch data from the InfluxDB database and draw diagrams. Finally you can include these diagrams in your openHAB sitemap. Table of Content Starting Point InfluxDB Installation …

But beware, the size of your DB will grow fast