[mythtv-users] Quiet fans

Darrin mtv at aperature.org
Thu Oct 16 10:44:38 UTC 2008


On Wed, Oct 15, 2008 at 8:04 PM, Yan Seiner <yan at seiner.com> wrote:

>
> On Wed, October 15, 2008 4:52 pm, Darrin wrote:
>
> > Nice.  If it were me, I'd complicate it a bit more and use an atmel avr
> > tiny
> > to do the same thing.  Then, you have the ability to reprogram it to your
> > whims and no potentiometers are needed.  You could even change the ramp
> > rate
> > on the pwm to be completely non-linear for your specific needs. The
> > ATtiny24
> > could do the job, has an onboard temp sensor, built in PWM, and only
> costs
> > $1.91 from digi-key.
>
> Any chance of doing a project page on this?  That could be cool.
>
> Even cooler (no pun intended) would be something with a termistor on a
> lead that could be stuffed into a hard drive caddy space.  :-)
>
> --Yan


Sure.  I don't think the programming on this is difficult, and the data
sheet practically gives you the basics.  All that would be needed is to
build the same circuit that Raphael posted except to use what's in the AVR
datasheet instead of the MIC502.  I would need to order some parts, but if I
get a protoype working, I'll be sure and post it.
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