void setup()
{
  pinMode(2, OUTPUT);//verde1
  pinMode(3, OUTPUT);//amarelo1
  pinMode(4, OUTPUT);//vermello1
  
  pinMode(11, OUTPUT);//verde2
  pinMode(12, OUTPUT);//amarelo2
  pinMode(13, OUTPUT);//vermello2
}

void loop()
{
  //vermello1-verde2
  digitalWrite(2, LOW);
  digitalWrite(3, LOW);
  digitalWrite(4, HIGH);
  
  digitalWrite(11, HIGH);
  digitalWrite(12, LOW);
  digitalWrite(13, LOW);
  delay(5000);
  
  //vermello1-amarelo2
  digitalWrite(2, LOW);
  digitalWrite(3, LOW);
  digitalWrite(4, HIGH);
  
  digitalWrite(11, LOW);
  digitalWrite(12, HIGH);
  digitalWrite(13, LOW);
  delay(2000);
  //verde1-vermello2
  digitalWrite(2, HIGH);
  digitalWrite(3, LOW);
  digitalWrite(4, LOW);
  
  digitalWrite(11, LOW);
  digitalWrite(12, LOW);
  digitalWrite(13, HIGH);
  delay(5000);
  //amarelo1-vermello2
  digitalWrite(2, LOW);
  digitalWrite(3, HIGH);
  digitalWrite(4, LOW);
  
  digitalWrite(11, LOW);
  digitalWrite(12, LOW);
  digitalWrite(13, HIGH);
  delay(2000);
   
}