RE: Dallas temp sensors

[Frost Neil <Neil.Frost@xxxxxxx>]

Paul,

I cut up a modem lead leaving an RJ11 on one end.....

The pins are as follows looking at the rj11 connector with the clip
facing
up....

Assuming pin 1 is on the left

PIN 1 = Not connected
PIN 2 = Ground (Green on my cable)
PIN 3 = DATA (Red on my cable)
PIN 4 = Not connected

To connect to the temp sensor, assuming the flat side is facing up
PIN 3 (Data) connects to the middle pin
PIN 2 (Ground) connects to the Left pin.

HTH

Neil

-----Original Message-----
From: Paul Gordon [mailto:paul_gordon@xxxxxxx] 
Sent: 19 July 2002 07:28
To: ukha_d@xxxxxxx
Subject: RE: [ukha_d] Dallas temp sensors


Hi Neil,

Got a weekend off work for a change this week, so I might try to play with
one of these if I get some time spare from my other chores... :-(

Just one quick question...

what's the connection schematic? - I've had a trawl round the Dallas site
and downloaded a couple of PDF's, but thus far, I've not found a connection
diagram...

what pins on the RJ er... 11 is it? port go to what pins on a DS1820?

I presume I cah hack an old modem line cord to bits to get the RJ11 (?)
lead

for the 9097U...

I also presume I can put multiple 1820's on a single lead in parallel?

sorry for so many questions, - but so little time to play! - and I want to
get it working in as short a time as possible...

Many thanks mate!

Paul G.



>From: Frost Neil <Neil.Frost@xxxxxxx>
>Reply-To: ukha_d@xxxxxxx
>To: "'ukha_d@xxxxxxx'" <ukha_d@xxxxxxx>
>Subject: RE: [ukha_d] Dallas temp sensors
>Date: Mon, 1 Jul 2002 08:40:47 +0100
>
>Paul,
>
>No problem, mail me off list with details. When I'd ask for the 
>DS1820's I also ask for the DS9097U's so have a couple spare.
>
>Neil
>
>
> >Wot, - the DS9097U's??
>
> >I already have 4 x DS1820's for the Quasar board..
>
> >Wouldn't I only need 1 of the DS9097U's?
>
> >I'll graciously accept one of those if you don't mind...
>
> >thanks ever so...
>
> >Paul G.




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