Motion and Speed detector

Discussion in 'General Electronics Chat' started by sihaam, Nov 4, 2009.

  1. sihaam

    Thread Starter New Member

    Nov 4, 2009
    4
    0
    Hello all
    We rquire a sensor circuitwhich will be mounted about 5 meters away from the gate entrance. When the car approaches, it must detect the speed. This speed must be able to be set on the sensor with a simple pot and lcd screen. (Turn the pot up-down to increase/decrease the speed). When the sensor detects any set speed, it must trigger off a relay. That is all. Is there any such circuit available :confused:
     
  2. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    There should be of the shelf devices in the market but in case you can't find one you can build one with ultrasounds.
     
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