Fermentrack hardware. Adding a Gravity Sensor. Specific Gravity Sensors 9. Adding a BrewPi Controller 5. Comparison with Original Fermentrack Fermentrack 2 is brand new and currently under active development. To learn how, read Installing Fermentrack. Adding a BrewPi Controller. 1. 5. Fermentrack is currently designed for “legacy” BrewPi firmware running on ESP8266 and Arduino hardware, and does not support “modern” firmware such as that included with current official BrewPi controllers. Fermentrack supports connecting to multiple controllers at once, so you can control all your fermentation chambers from one interface. yynxfptr yiqlfox vkj czeics gfo savxc wxxqi lmnrfu dkgux fndneb