Re: rpi4 fan speed control

From: Emmanuel Vadot <manu_at_bidouilliste.com>
Date: Mon, 18 Nov 2024 11:53:37 UTC 
On Mon, 18 Nov 2024 11:03:29 +0000
Nuno Teixeira <eduardo@freebsd.org> wrote:

> Hello all,
> 
> My rpi4 small fan is about to die since it started to have noises. Its a
> small 40x10 fan attached to a plastic box.
> 
> I'm thinking in something like:
> https://www.zdnet.com/home-and-office/the-best-cooler-for-raspberry-pi-power-users/
> 
> Anyone controlling speed fan, i.e., not using fan a full speed all the time?
> 
> Thanks,
> 
> -- 
> Nuno Teixeira
> FreeBSD UNIX:  <eduardo@FreeBSD.org>   Web:  https://FreeBSD.org

 I find the wiring a bit weird, usually you use a pwm controller to
control the speed of a fan and we have support for rpi pwm (even though
it's not handled by the pwm(4) framework iirc) but on the website they
plug the control pin to the uart TX ???

 Cheers

-- 
Emmanuel Vadot <manu@bidouilliste.com> <manu@freebsd.org>