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 # Luzifer / mqtt2influx
 
-MQTT to InfluxDB transport
+MQTT to InfluxDB transport: uses mapping config including transformer functions to pull data from MQTT topics and write those values into InfluxDB.
 
-Uses mapping config including transformer functions to pull data from MQTT topics and write those values into InfluxDB
+The motivation behind this was for me to have a lot of [Tasmota](https://tasmota.github.io/docs/) sensors sending data through MQTT to [Home-Assistant](https://www.home-assistant.io/). Home-Assistant is capable of writing those metrics into InfluxDB but sadly it only writes them on change. So if a value does not change for an extended period of time for example Grafana dashboards will stop to display the metric as it contains no data.
+
+As those sensors are sending values in different forms (value only, value embedded in JSON, ...) I needed a way to configure the transform of the values in a way no code needs to change for a new transmission method. Therefore I came to use Python with extra support for lambda functions in the configuration.
+
+**A word of warning:** If you plan to run this in an untrusted environment you will compromise your environment! Lambda functions in config which execute code on random values sent through MQTT aren't a good idea. So only use them if you are 110% sure you only will get the expected values / data in a fully trusted environment!