> I dont know if your question ever got answered, but,
> how accurate do you want?
> Barometric pressure is actually a good way to predict if it is going
> to rain. I know the accuracy would deffenitly be much greater than 50%
> (if 50% is ok, use a coin).

I noticed this week that the foil lid on a large size "noodles in a
bowl" bulges up significantly when the atmospheric pressure drops
just before rain. Appears consistent no matter what the flavour. Add
a microswitch, battery and buzzer (and anti-theft device) and there
you have it. Should only be about a 2 minute job...

Brent Brown
Electronic Design Solutions
16 English Street
Hamilton, New Zealand
Ph/fax: +64 7 849 0069
Mobile/text: 025 334 069
eMail:  brent.brown@clear.net.nz

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