Remove these adsRemove these ads by Signing Up
athomas212 years ago
can i use a 7-segment display to show the time remaining for the signal to change??....if yes then how??
robot1398 (author)  athomas212 years ago
are u willing to use a microcontroller or not?
MROHM robot13982 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!!!
no not a microcontroller.....
techxpert2 years ago
year this is a great circuit also posted at
thanks for making an instructable about it as it was hard to read
yellow should always be before red light
robot1398 (author)  pbergeronronronron2 years ago
u r correct but now i have to redesign the circuit
optox robot13982 years ago
justswitch the red and green LEDs
robot1398 (author)  optox2 years ago
robot1398 (author)  pbergeronronronron2 years ago
(removed by author or community request)
What is the purpose of the yellow light in India then?
amalviya12 years ago
it's purpose is to get ready! the way nice project rohit!..
robot1398 (author)  amalviya12 years ago
ray_Bond2 years ago
very good work bro
you keep it simple and with less use of components
this is really good.
God Bless You
robot1398 (author)  ray_Bond2 years ago

Get More Out of Instructables

Already have an Account?


PDF Downloads
As a Pro member, you will gain access to download any Instructable in the PDF format. You also have the ability to customize your PDF download.

Upgrade to Pro today!