Now a days most of the traffic signals are connected and working automatically by using programs.
Here we have made small program to control traffic signal automatically by using arduino uno board
Step 1: Connections
Connect arduino and bread board with connecting wires
connect pin 10= red led anode
pin 9= yellow led anode
pin 8=green led anode
Step 2: Here We Can See How It Is Working
watch video to learn video
and I have attached program to control this circut make use of it
And this is my first instructables post if any error in my post found kindly inform me.