Re: [ukha_d] 1-wire Samples
- In article <0106011022041S.09435@garner>, Stuart Grimshaw wrote:
> No, they don't do light sensors, but they do have a/d converters, so youA new version of the DS1910 humidity sensor that will be available soon
> could hook a normal ldr up to one of those and read values from it.
also sense light level. It's designed for plant monitoring, so does temp.
humidity and light.
Sunny Leeds, UK
Using Java on Tini for control via Dallas 1-wire
- I have had one of the evaluation units now for around 6 months and have had
it on/off the 1-wire net since then. It has been fairly reliable on the
bench but totally killed the 1-wire net when it got foggy with the sensor
Anyway, I intend to try it again outside but have it powered from a 5V
supply rather than letting it rely on the parasite power from the 1-wire
Incidentally, the evaluation unit does have provision to add a photodiode
(transistor?) and resistor to implement the light sensor part.
| Jon Whiten Church Gresley | D.G. Controls Limited |
| Derbyshire | Beacon Lamp Specialists |
| jon@... England | mail@... |
| http://www.whiten.co.uk/ | http://www.deegee.com |
> -----Original Message-----
> From: Campbell [mailto:c.macd@...]
> Sent: 01 June 2001 22:25
> To: firstname.lastname@example.org
> Subject: Re: [ukha_d] 1-wire Samples
> The new hygro ibutton DS1910 when it is complete has a light intensity
> sensor as well as humidity and temp. The humidity evaluation is already
> ----- Original Message -----
> From: "Stuart Grimshaw" <stuart@...>
> To: <email@example.com>
> Sent: Friday, June 01, 2001 10:22 AM
> Subject: Re: [ukha_d] 1-wire Samples
> > 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
> > the 9097E, which is obsolete and a bag of crap :-) They cost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
> > > access control and that would be a bit of a leap of faith at the
> > > what else might I want from Dallas in a simple (lights and a few
> > > only - so far) HA setup? Do I just put these devices on a
> CAT5 cable or
> > > 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
> > config without a hub (see Mike Griffiths' post in the archive
> from May 11
> > 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
> > 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.
> > 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
> > --
> > ,,,
> > (o o)
> > ===========================oOO==(_)==OOo==============================
> > Stuart Grimshaw www.schoolsnet.com sg@...
> > Special Projects Developer t: 07976 625221
> > Schoolsnet LTD .oooO Oooo. f: 0870 7060260
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