The following schematic shows the design of a simple Car Parking Circuit Diagram using NE555 IC. This circuit is designed to be used as an aid for sensing the distance between the rear bumper of the car and any obstacle behind the car. At 25cm D7 will glow, at 20 cm D7&D6 will glow and at 5cm D7, D6 and D5 will glow. When the obstacle is beyond 25 cm none of the above LEDs will glow.
Car Parking Circuit Parts and Components List:
R1 ___ 10K
R2 ___ 1K
R3 ___ 33Ohm
C1 ___ 1uF
D1 ___ LED
IC ___ NE555
Power Source ___ +12V DC
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2 comments for this entry ↓
1 kenny // Dec 2, 2010 at 12:33 am
where is the d6 & d7 are located? ha ha ha grate!
2 racs // Nov 25, 2011 at 6:00 am
i dont understand your circuit….how is possible to this circuit detect the prescence of any obstacule
RF (anten) IR etc etc
could you explain me more detailed…thanks
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