InfluxDB

InfluxDB is a special kind of database very suitable for storing data messages from sensors. It is so called "Time series database" - each record is saved together with timestamp. There is no need to create and define fields in the table - will be created automatically when the data are stored.

Usual way is:

• sensor sends his data via MQTT message to the MQTT broker (Mosquitto)
• data are picked up by Node-RED, processed by a flow and sent to database