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Thread: Distance Meter implemented with a PIC?
face BY : James Cameron email (remove spam text)

I would use Radar.

Depends on the culture.  Some driving communities use a half second
response gap, some use three or four.  Lots of range in the middle.

For a half second at city traffic density, most likely ultrasound would
work, but a vehicle following speed control unit would be most used on
longer distance travel and often outside cities, hence the speed is
higher and the distance is much greater.

James Cameron                                    (@spam@cameronspam.....stl.dec.com)
Digital Equipment Corporation (Australia) Pty. Ltd. A.C.N. 000 446 800

<36350779.DE697300@stl.dec.com> 7bit

See also: www.piclist.com/techref/microchip/devices.htm?key=pic
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