by robot1398

3.7K314

Intro:



14 Comments

athomas21 12 years ago

can i use a 7-segment display to show the time remaining for the signal to change??....if yes then how??

robot1398 12 years ago

are u willing to use a microcontroller or not?

MROHM 12 years ago

You can do it with a 7447 and a 7490(TTL gates and not a microcontroller) THERE ARE SITES WITH SCHEMATICS TO DO THIS!!!

athomas21 12 years ago

no not a microcontroller.....

techxpert 12 years ago

year this is a great circuit also posted at http://www.kpsec.freeuk.com/projects/trafficlight.htm
thanks for making an instructable about it as it was hard to read

robot1398 12 years ago

u r correct but now i have to redesign the circuit

optox 12 years ago

justswitch the red and green LEDs

amalviya1 12 years ago

it's purpose is to get ready!...by the way nice project rohit!..

ray_Bond 12 years ago

very good work bro
you keep it simple and with less use of components
this is really good.
God Bless You

LinemenOwn 12 years ago

What is the purpose of the yellow light in India then?