Re: [mh] What's the simplest/cheapest way to get a couple of temperature readings for mh?

[Ralph M. <ral...@gm...>]

On Fri, Jul 24, 2009 at 11:16 AM, Marc MERLIN <ma...@me...> wrote:

> It looks like the cheap option that most seem to use is the DS1820
> http://www.johncon.com/john/ds18s20/
> http://www.maxim-ic.com/quick_view2.cfm/qv_pk/2815
>
> But I'm a bit unclear what it takes to connect this back to my PC.
> I found this:
> http://www.phanderson.com/t64.html
>
> But more generally what's the simplest and cheapest way for me to get a
> couple of temperature sensors that I can read from mh?
> I can use cat-5, go through insteon (although I doubt that'll be cheap), or
> wireless.
>
> I can solder, but I'd rather not have to put a devel board together just to
> get a few temp readings :)


The same guys the make the temperature sensor also make interfaces to hook
them up to your PC:

Serial port:   DS9097U
http://www.maxim-ic.com/quick_view2.cfm/qv_pk/2983/t/or
USB:           DS9490R
http://www.maxim-ic.com/quick_view2.cfm/qv_pk/3834/t/or

I got one of each a couple of years ago, along with a couple of temp
sensors, as free samples...  Both type have an RJ11 phone jack on the outer
end.  The simplest way to connect a temp sensor is to cut one end off an old
phone cable and solder on the sensor.

Ralph Mitchell