4 way traffic light Circuit

Shms's picture
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Joined: Dec 03, 2016
4 way traffic light Circuit
December 3, 2016 - 9:48pm

Hi All

I designed this circuit but it doesn't work

http://circuitdigest.com/fullimage?i=circuitdiagram/Traffic-Light-Circui...

please tell me the error

 

here is my design on proteus

https://postimg.org/image/t5zky0vt3/

 

B.Aswinth Raj's picture
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Joined: Aug 16, 2016
There is grounding problem in your circuit.
December 6, 2016 - 8:58am

Your circuit is all fine and I guess you should have got the output partially.

The reason is you have misplaced the ground two and three.

 

Since you are using a battery source there would be no need to specify these grounds in your circuit. Try removing them and it should work. 

Let us know the results!!