RE: Detecting an open door

[Andy Laurence <andy@xxxxxxx>]

On Mon, 30 Sep 2002, BUTLER, Tony, FM wrote:
> That was me.  It works well enough....most of the time!
> Problem would be in getting the gate open detected - if you used
magnetic
> contacts, they usually open when the magnet moves away from the
gate.  you
> would need them to close....

You could offset the switch so that it flicked the switch once on opening,
and once on closing.  Then you could have a 50% failure rate, and it'd
still work ;-)

Andy
-- 
Building a wireless community network for Bristol
http://consume.andylaurence.co.uk/
- updated 26/09
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