Re: 1-wire Samples

[Stuart Grimshaw <stuart@xxxxxxx>]

On Thursday 31 May 2001 22:42 pm, you wrote:

> So, what do I need to do to get temperature monitoring back to a PC
and
> HomeSeer?

I don't know about homeseer, but for the PC you need the serial->1-wire
adaptor, there are a few available but the one I'd go for is the DS9097U
(NOT
the 9097E, which is obsolete and a bag of crap :-) They cost about 17 quid
from Farnell.

> Do any of the 1-wire devices give light intensity (I'm thinking
> of daylight sensing for HomeSeer)?

No, they don't do light sensors, but they do have a/d converters, so you
could hook a normal ldr up to one of those and read values from it.

> Am I barking up the wrong tree?  Apart
> from i-Buttons (can't think of any application that I have for them
except
> access control and that would be a bit of a leap of faith at the
moment!)
> what else might I want from Dallas in a simple (lights and a few
appliances
> only - so far) HA setup?  Do I just put these devices on a CAT5 cable
or do
> they need to be built into a circuit?

Normally you have to wire 1-wire buses in 1 run, but it is possible to run
the bus in a star configuration, either by using a 1-wire hub (which the
Projects group is working on), or there are things you can do to use a star
config without a hub (see Mike Griffiths' post in the archive from May 11
for
more details)

CAT5 is ideal to use for your 1-wire bus.

I'm planning to have access to the house & garage by iButtons, also
setting
lighting and volume etc on the TV/Stereo with another iButton point in the
living room, also it would choose music depending on who was in the house.
I
want to control the temperature with the DS1820's & a mod to my central
heating similar (well, the same actually) as the one Keith demonstrates on
his website (replave the central heating timer with an X10 appliance unit.)

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