A DIY brewing chamber prototype based on raspberry pi3 and node red

The brewing chamber aims to maintain a constant temperature during weeks to control the beer's fermentation step.

This prototype usesĀ  a cardboard box for the chamber, the heating light increase temperature and the fans decrease it.

Actually simple conditions given a desired temperature are checked : if it is too cold then heat, if it is too hot then refresh.

Three leds help to check what's going on : red when heating, yellow when there is nothing to do and blue when cooling the box.

An InfluxDB time series database is also used to track temperature variations.

Grafana i used to display the data recored in InfluxDB.

Node red manages the whole systemand it runs on a raspberry pi 3 B+.