Arduino Traffic Lights Controller project

1 Arduino UNO
3 LED
Wire conection

Code in C+ for arduino studio

int red = 13;
int yellow = 12;
int green = 11;
void setup()
pinMode(red,OUTPUT);
pinMode(yellow,OUTPUT);
pinMode(green,OUTPUT);

void loop()
changeLights();
delay(15000);

void changeLights()
// green off, yellow for 3 seconds
digitalWrite(green,HIGH);
digitalWrite(yellow,LOW);
delay(3000);

// turn off yellow, then turn red on for 5 seconds
digitalWrite(yellow,LOW);
digitalWrite(red,HIGH);
delay(5000);

// red and yellow on for 2 seconds (red is already on though)
digitalWrite(yellow,HIGH);
delay(2000);

// turn off red and yellow, then turn on green
digitalWrite(yellow,LOW);
digitalWrite(red,LOW);
digitalWrite(green,HIGH);

Create by:Diodiu Andrei