/dev/coffee (was Re: Plants as network medium?)

G. Frank Paynter paynter.5 at osu.edu
Sat Sep 12 15:07:39 EST 1998


Ross,

Thermistors are usually too insensitive for what you want.  Analog Devices
sells some pretty interesting absolute temperature sensors if you want real
precision.

Frank

Ross Crawford wrote:

> Ross Vandegrift wrote in message <35ED8882.98A87026 at erols.com>...
> >>Ross Crawford wrote:
> >Cool, another Ross who is into Linux!
> >
>
> Yeah, but not as much as I'd like to be ... M$ dev still pays most my bills
> 8?(
>
> >Actually, I planned on not using a pre-existing coffe pot, and designing
> >my own.  I realize that /dev/coffee has consistently been a joke in many
> >circles, but I think it might be a neat idea.  My rationale, if there
> >need be one, would be that different temperatures, only a few degrees
> >apart are better for brewing different coffee for different purposes.
> >For example, to erxtract the maximum amount of caffeine out of beans,
> >you need the water to be slightly cooler than normal.  Only an
> >electronic pot designed to brew for variable desires could handle such
> >precision.
> > Not to mention my dad works for a controls company that specializes in
> >temperature control.  hehehe...
> >
>
> Hey, that's interesting. Some guys where I work (inc. me) were looking at
> putting together a sensor on our urn and interfacing it (probably thru a
> games port) to our intranet web page, so we know when it's at the optimum
> temperature to make a cuppa. Hasn't got very far. What's the best device to
> use? Thermistor? We're not looking at high accuracy. Just a rough idea.
> Needless to say, the less $$$ involved, the better. 8?)
>
> Regards,
>
> ROSCO






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