Traffic ligths with Arduino

explanation of the project

This is code of my project

int rojo=2;

int amarillo=4;

int verde=7;

void setup() {

pinMode(verde,OUTPUT);

pinMode(amarillo,OUTPUT);

pinMode(rojo,OUTPUT);

}

void loop() {

digitalWrite(verde,HIGH);

delay(3000);

digitalWrite(verde,LOW);

delay(500);

digitalWrite(amarillo,HIGH);

delay(2000);

digitalWrite(amarillo,LOW);

delay(500);

digitalWrite(rojo,HIGH);

delay(3000);

digitalWrite(rojo,LOW);

delay(500);

}

Here is an image of my project :