Re: Re: 1-Wire advice please

["Stuart Poulton" <stuart.poulton@xxxxxxxxxxxxxx>]

Hi,

If theres enough interest then I can probably arrange another run of sensor
modules.

Price will be around £15 a module, assembled and tested. Cases can be
done
at £2.50, postage will be at cost.

Any takers mail me off list please.

Stuart


----- Original Message -----
From: "kw1816" <kw1816@xxxxxxx>
To: <ukha_d@xxxxxxx>
Sent: Wednesday, January 24, 2007 4:18 PM
Subject: [ukha_d] Re: 1-Wire advice please


> Very nice Stuart - makes me feel unworthy using choc block :-)
> You haven't got a dozen left over have you !
>
> Cheers
> Kevin W.
>
> --- In ukha_d@xxxxxxx, Stuart Poulton <stuart.poulton@...>
> wrote:
>>
>> Hi,
>>
>> I produced some modules a while ago to do exactly this.
>>
>> Here's some pictures of how Q installed and uses the modules.
>>
>> http://www.awooga.nl/component/option,com_gallery2/Itemid,29/?
> g2_itemId=18916
>>
>> http://tinyurl.com/2ok57m
>>
>> Regards
>>
>> Stuart
>>
>>
>> On Wed, 2007-01-24 at 09:59 +0000, kw1816 wrote:
>> > 1-Wire advice please
>> >
>> > I've just ordered my first set of 1-wire bits, the serial
> interface
>> > and 10 DS18S20's which should be arriving soon. My plan is to
>> > integrate it into Homeseer to provide temperature monitoring
in
> each
>> > room in the house. I'm hoping that someone familiar with
1-wire
>> > networks can have a quick look at the following :
>> >
>> > Network:
>> > 1 run of unshielded CAT5e cable, daisy chained to each room
from
>> > Node 0.
>> > When I install the cable I plan on pulling the cable to the
end
>> > location and work backwards dropping a 6-8" loop through
the
> ceiling
>> > at each location.
>> > Does the open end need terminating in any way or just end
with a
>> > DS1820 connection ?
>> >
>> > Sensor mounting:
>> > I plan to ceiling mount the DS18S20's in these
>> > http://cpc.farnell.com/jsp/endecaSearch/partDetail.jsp?
> SKU=EN55575
>> > For the physical connection to the network I was planning on
> using
>> > small choc block connector strips with the DS18S20 free on
one
> side
>> > and the cable on the other side. Should fit nicely into the
>> > enclosure above.
>> >
>> > Watchouts:
>> > I've seen mention of fitting a 100 ohm pull up resistor to
the
>> > DS18S20's - is it necesary on this size network ?
>> > Is the enclosure above a good choice - I'm not after total
> accuracy
>> > for the temperature reading but would like it to be
> representative.
>> > What other options exist for connecting and fixing the
DS1820's ?
>> >
>> > Thanks
>> > Kevin W.
>>
>
>
>
>
>
>
>
>