Raspberry Pi PoE Hat Fan Control

I noticed yesterday that the fans on the PoE Hat of my Raspberry Pi 4’s were behaving strangely. They were both kicking on based more on time than temperature, even though neither of them seemed that hot. You can check the temperature via the command line like this: /opt/vc/bin/vcgencmd measure_temp And you’ll get something like: … Continue reading Raspberry Pi PoE Hat Fan Control