glenosAU

I have similar issues with my set up although they appeared after I built my controller into a box. I think it is either feedback from the eBay 5V power...

Based on @vitotai answer. My fridge probe is being lost intermittently so the temperature tracks to the beer temp. But is coming back to life before it gets there and...

OK. I asked as I was retrofitting an ESP32 to a previous brewpiless build which used an ESP8266.

The fork being maintained by lawabb includes a master relay and he recommends the Darlington array. I drew the PCB when I had some spare time while waiting for parts...