Hi, I'm brand new to NodeRed, MQTT, InfluxDB and Grafana
I'm trying to visualize Data form a ESP8266. Onto the dashboard the data come in. But I've got an issue to transform the MQTT data into an proper format for InfluxDB. NodeRed time series graphs work fine, but I can't visualize the MQTT sensor data in Grafana.
What should I do? A transformation with the json block, and a custom function. But what shoult the function looks like? Everything I tried doesn't work.