RE: Sat on a Toilet Sensor ?

["Pete Church" <yahoo@xxxxxxxxxxxxxxxx>]

-----Original Message-----

One final off-the-wall suggestion, put an electrode on each side of
the toilet seat, when the person sits down they make the circuit and
you can use that signal to start the fan (a bit like the battery
testers that were fitted to the sides of some duracell batteries).





This could also have a secondary use - after a set time you could use the
same electrodes to give a quick shock to remind you that you've been
sitting
there for just over 2 hours.



Other options for switching could include: a light level sensor in the bowl
combined with a proximity sensor to confirm that someone is sitting down
(wouldn't work at night so well).  Personally I'd use the load guage or
some
sort of pressure pad, but I'd fit them to the underside of the seat, as the
sensitivity will be enhanced as the no-load setting will just be the weight
of the seat. Something like: http://tinyurl.com/2bge96





Cheers



Pete





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