Re: Automatic watering

["Rob Lamb" <rjl@xxxxxxx>]

Thanks Tim - I was impressed the first time I saw it. I was really
trying to use some bits that I had as this seemed the easiest thing
to do (at the time!).

I'll see if a short pulse does the trick.

Rob

--- In ukha_d@xxxxxxx, "Hawes,Timothy Edward (GEG)"
<haweste@a...> wrote:
> Rob,
>
> Take a look at Ian's setup at:
> http://www.mollyology.com/MyHouseIrrigation.htm
>
> Very impressive, and controlled from HV (and xAP ?) too.
>
> HTH,
>
> Tim.
>
> > -----Original Message-----
> > From: Rob Lamb Sent: 03 December 2003 11:49
> >
> > I need a little help with a new project. Up until now I've used
a
> > standalone Gardena water computer to control my irrigation
system
> > but as this now seems to have failed and I now also have
Homevision
> > I thought I try to control the valve part of the water computer.
> > Taking the water computer apart there are just a pair of wires
that
> > lead to what looks like an electromagnet on the valve. Connect
9V DC
> > to these leads (that's the same as the battery the computer
used)
> > and hey presto water flows through the valve. But here's the
> > problem. Disconnect the power and - the water still flows! Any
ideas
> > on what I'm doing wrong or what to do next?
> >
> > Regards,
> >
> > Rob
>
> +