Using GPIO pins on a Raspberry Pi 4 running emteria.os
I have installed emteria.os on a RPi4 so that I can run a digital signage player app built for Android but managed in the cloud. I think it is a cheap and simple solution. However, I am worried about the RPi4 getting too hot as it is behind the signage TV and both will be always on.
As well as adding a heat sink, I want to connect a cooling fan with 5V wire, ground wire and control wire to the GPIO pins so that the fan turns on when the temperature hits a certain threshold.
I'm afraid I do not have any programming experience. Is this possible to do? Searches on the web have not given me any simple solutions, or solutions I understand.
Thanks in advance.