Re: Dallas temp sensors

[Stuart Grimshaw <stuart@xxxxxxx>]

On Friday 28 June 2002 1:43 pm, Paul Gordon wrote:
> Chaps,
>
> I've come to the conclusion that the 4 inputs provided by my
Quasar
> electronics temperature board is going to be insufficient, and I'd
like to
> increase the capacity to something like double that...
>
> One option would obviously be to buy another 4-port temp. board, but
that
> requires another COM port on the HA PC, and I really don't want to
lose
> another port for this...
>
> What alternative devices can I use to interface DS18020's to a COM
port?
>
> I would like:
>
> - Single COM port
> - 8 or more temperature probes
> - UK supply source
> - off-the-shelf device (no soldering please!)

What you want is a DS9097U, they're about 20 quid from RS, but if your not
in 
any rush, you can order one as a sample direct from the Dalsemi website.
It's 
a DB9 formfactor 1-wire interface, and supports an unlimited number of
1-wire 
devices (not just temp sensors)


For more information: http://www.automatedhome.co.uk
Post message: ukha_d@xxxxxxx 
Subscribe:  ukha_d-subscribe@xxxxxxx 
Unsubscribe:  ukha_d-unsubscribe@xxxxxxx 
List owner:  ukha_d-owner@xxxxxxx

Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.