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.