A fan script for a beginner

Peter · Sep 25, 2018, 6:49 PM

https://hackernoon.com/how-to-control-a-fan-to-cool-the-cpu-of-your-raspberrypi-3313b6e7f92c
I use this.
It works fine, even wit a Google AIY Hat on top of the RPI.
I hope it works for you too.
Peter

sdetweil · Sep 25, 2018, 6:57 PM

@peter so, you made a transistor based relay… cool…

but that doesn’t help his speed control question…

sdetweil · Sep 25, 2018, 6:58 PM

@cyrus1337 the specs do not say how the yellow wire is used to control the fan.

CyruS1337 · Sep 26, 2018, 4:24 AM

Maybe you misunderstand me. I just want to turn on the fan and turn it off when the CPU has more than 50 °. I have 3 wires on my fan as shown above.

Peter · Sep 26, 2018, 7:30 AM

That is exactly what I told you before.
Read the article and you will see how to connect the 3 wires.
And you can change the temperature of the fan to start.
My fan starts at 65 and runs for 30 seconds to cool the cpu.
Peter

CyruS1337 · Sep 26, 2018, 7:42 AM

Thanks, I want to try it