I recently helped Koen to convert his fridge into a BrewPi fermentation fridge. We added OneWire temperature sensors and hacked the fridge for fermentation temperature control.
My own fridge has seen too many experiments, it has been sawed in and I modded it before I really knew how fridges were wired. It works, but it’s not pretty.
Koen provided me with a blank slate to do a proper build. We made a lot of photo’s of our build process, explain how fridges are wired, show easier alternatives to what we built and give advice in picking a fridge and the other parts. So what are you waiting for?