Introduction: Traffic Light 4 Way. Using Arduino Uno

This is a simple 4-way Traffic Light Controller that I made. The LEDs are controlled my an arduino uno.

1. 4 red led, 4 yellow led, 4 green led
2. Breadboard

3. Arduino UNO

4. Cable

Step 1:

Step 2:

Step 3:

Step 4:

Step 5: Sketch