<item>.deltaSince(..) does not provide "delta" for rain counter for Homematic WeatherStation HmIP-SWO-PL

[lil2k (Christian Benjamin Ries)]

Alright, I switched over to InfluxDB by help of this nice tutorial:

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 …

I imported few datasets from rrd4j with this nice tool:
https://github.com/jhron/rrd2influxdb

So far, I will give it a try.

Thanks.