Grafana Howto: From B.One Middleware via MQTT to InfluxDB
- 📖🕓 ≈ 5 min - In the last articles you have already been given a small introduction to the open source tool Grafana. It was also reported how to install and set up Grafana locally under Ubuntu. Today we are installing a small database for your applications on a Linux distribution and writing the first sample data, which we receive via MQTT, into the database. We then visualize the stored data in Grafana. For this purpose, InfluxDB is used in
Grafana: Add and configure InfluxDB as data source[/caption] Finally save and test. If the green notification message " Data source is working " appears, the setup was successful. Typical errors, why the test fails, are typos in the URL or the port, InfluxDB instance not started or incorrect user credentials.
If you run InfluxDB and Grafana in Docker containers, the IP and port are often the source of error. Check this in your Docker configuration.
Grafana: Visualize data from InfluxDB in Dashboard[/caption] When all the settings have been made and data has already accumulated, the corresponding progress is displayed directly and you can (if desired) start to further adapt the panel to your own requirements. [caption id="attachment_12090" align="aligncenter" width="1481"]
Grafana: Visualize InfluxDB data in dashboard - temperature graph[/caption] You now know how to prepare an InfluxDB to receive data from Telegraf. In addition, we have connected an MQTT broker as an example and visualized a sample process in Grafana. In another article I will explain to you soon the "Swiss Army Knife" Telegraf in more detail and introduce you to my current project. So check back here soon! ;-)