> -----Original Message-----
   > From: piclist-bounces@mit.edu
   > [mailto:piclist-bounces@mit.edu]On Behalf Of David Van Horn
   > Sent: Thursday, September 01, 2005 5:24 PM
   > To: Microcontroller discussion list - Public.
   > Subject: RE: [EE]: Looking for method to differentiate
   > gravityfromacceleration
   >
   >
   > > Well, before Olin clipped my post for the humor value, I'd
   > suggested a
   > > wheel sensor (without realizing the original poster was looking for a
   > > stand-alone installation), or some sort of ground motion sensor.  I
   > have
   > > no idea what that sensor might be, other than perhaps some variation
   > on
   > > an ultrasonic flowmeter.
   >
   > You could do Doppler microwave underneath the car without too many
   > problems.
   > Cosine error would have to be dealt with, but that ends up as a
   > constant.
   > Then you just look at how fast you are slowing down, and handle the
   > brake lights appropriately.


I know this doesn't help much but...
(never stopped me or several others here before)

There is No Gravity...the Earth Sucks!!!

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