This video will show how I built my own Craftbeer Pi 4 Fermentation brewery controller. This system replaces my SSBrewtech FTS 12V controllers after I had a failure.
This video goes through the required parts, costs, schematics and the issues I had with mine. This included the one wire probes freezing and replacing these with PT100 probes.
If you are looking at building your own fermentation controller with remote data and control then give this one a watch!