Gus,

Make them flash a coloured led and put a cheap webcam down there?

I guess it depends how much access you have to the innards. If you
can't wire to them directly, you may be stuck with a microphone type
solution  If you can get access to the beepers, then a world of
possibilities open up.

RP

2009/11/30 YES NOPE9 <yes@nope9.com>:
> I have a number of alarms in a multi-unit basement crawl space.
> Smoke, CO , Explosive Gas
> When a battery goes dead , it is annoying to find out which device is
> the problem.
>
> I am looking for creative ( and cheap ) suggestions about how to make
> these tweeters distinctive.
> I would be thrilled to come up with a way to report the results via
> the internet.
>
> for example: =A0if I could have a different tone for each one and detect
> that, I could
> use a smart ethernet adapter ( PIC based of course ) to report the
> problem.
> Would different length tubes make the beeps distinctive ?
>
> I guess I could run cheap microphones to each tweeter.
>
> ( Olin =A0 =A0Please don't give me another award )
>
> Gus
> --
> http://www.piclist.com PIC/SX FAQ & list archive
> View/change your membership options at
> http://mailman.mit.edu/mailman/listinfo/piclist
>

-- =

http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist