A section of windscreens has moisture detection, prob using conduction. Maybe a pressure sensor? maybe capacitive

It's hooked up to the control of the windscreen wipers.

Harder it rains, harder they go
-- lostmind, Jan 08 2013

they do exist http://en.wikipedia.org/wiki/Rain_sensor
[lostmind, Jan 08 2013]

Sorry lostmind, baked hard http://www.youtube....watch?v=IIDRUnwo6j0
[Brian the Painter, Jan 08 2013]

When i sold cars in 2001 the Kia Rio (cheapest car in Canada) had this.
-- Brian the Painter, Jan 08 2013


thought so, but i felt like posting it
-- lostmind, Jan 08 2013


I've seen these work and their awesome. We would splash a glass of water on the windscreen and watch the wipers come alive! Don't you hate it when you invent the best idea ever just to find out its baked?!
-- Brian the Painter, Jan 08 2013


And there should also be headlights that come on automatically in the dark!
-- evilpenguin, Jan 08 2013


These are widely known to have existed for decades.
-- tatterdemalion, Jan 08 2013


@evilpenguin I went to your profile page and there is not much there to support your existence. Are you sure your real?
-- Brian the Painter, Jan 08 2013


not sure what you expect from a profile page. Mine is just a funny quote pulled from another halfbaker I pissed off. I think I'm real
-- evilpenguin, Jan 08 2013



random, halfbakery