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The UKHA-ARCHIVE IS CEASING OPERATIONS 31 DEC 2024


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Automatic watering


  • To: ukha_d@xxxxxxx
  • Subject: Automatic watering
  • From: "Rob Lamb" <rjl@xxxxxxx>
  • Date: Wed, 03 Dec 2003 11:48:49 -0000
  • Mailing-list: list ukha_d@xxxxxxx; contact ukha_d-owner@xxxxxxx
  • Reply-to: ukha_d@xxxxxxx

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



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