HighPI case fan control RP4

Volumio Information

Volumio Version: v2.915
Hardware: RP4
DAC: IQAudio DAC+/DAC Pro
Highpi case with their fan installed
How can you control the fan start and stop based on the RP4 temperature

Hi Qave,

Searching for “Highpi case” i only find one without fan…
grafik

Could you provide a link or picture of the case you mean ?
Often, there is documentation from the case manufacturer.

BR
Josef

Case HighPi Pro Case for IQAudio DAC+/DAC Pro and Raspberry Pi 4 | The Pi Hut

Fan HighPi Pro 5V Fan - Software-Controlled | The Pi Hut

Thanks

you can run the update but never run the upgrade this will break volumio.
this can work on a recent version of Raspberry Pi OS

Does running update enable the fan as it would if I set it to “Enable” in the Raspberry Pi Configuration GUI? My fan is connected to the default fan GPIO (14), so if Update enables it, I would expect it to then power on/off according to the default “Fan Temperature” (which I think is 80c).

dtoverlay=gpio-fan,gpio-fan,gpiopin=14,temp=80000

if the high pitch sound of the fan is irritating, you could try to run it on 3,3 volts instead of the 5volts.

you could put this in /boot/config.txt but this will not preserved it. To make it permanent custom settings need to be added to /boot/userconfig.txt instead.

best regards,
dvo

1 Like

Nailed it! Fan isn’t whining any more. I need to stress it a little to cycle it on and off, but it seems to be working. If the cycling becomes an issue, I’ll try running it on 3.3v as suggested. One change at a time. Thanks.

I should lower the value to 60000, as 85000 is a critical temperature for the rPi. With 80000 your already pretty close to it.

Ack.