I have built a P5 panel and it is getting a bit warm in side the box and was thinking of adding a USB fan off the PI and is there any way in FPP to control the fan when it cuts in or off
Rightly or wrongly, I have W1209 temp sensors running off my PSU to 60mm cooling fans to extract the hot air. Easy as to wire up and setup. Haven’t decided what temp to set them to kick in at yet.
doesn’t specifically answer your question but maybe an alternative?
Any harm in leaving it on while the Pi is on, no control at all? Cheaper and way so much easier. Not to mention, electronics prefer to run cooler. (to a point)