/* Practica 3. Control de dos semmaforos en un cruce. */
/* Anda que como me equivoque en el codigo... vaya desastre de circulación!!! */

void setup()
{
  for (int pin = 2; pin <7; pin ++)
  {
    pinMode(pin, 
    OUTPUT);
  }
}
void semaforo_1()
{
  digitalWrite(2, HIGH);
  delay(500);
  digitalWrite(2, LOW);
  delay(500);
  digitalWrite(2, HIGH);
  delay(500);
  digitalWrite(2, LOW);
  delay(500);
  digitalWrite(2, HIGH);
  delay(500);
  digitalWrite(2, LOW);
  delay(500);
  digitalWrite(3, HIGH);
  delay(3000);
  digitalWrite(3, LOW);
  digitalWrite(4, HIGH);
  digitalWrite(7, LOW);
  semaforo_2();
}
void semaforo_2()
{
  digitalWrite(5, HIGH);
  delay(500);
  digitalWrite(5, LOW);
  delay(500);
  digitalWrite(5, HIGH);
  delay(500);
  digitalWrite(5, LOW);
  delay(500);
  digitalWrite(5, HIGH);
  delay(500);
  digitalWrite(5, LOW);
  delay(500);
  digitalWrite(6, HIGH);
  delay(3000);
  digitalWrite(6, LOW);
  digitalWrite(7, HIGH);
  digitalWrite(4, LOW);
}
void loop()
{
  for (int pin = 2; 
  pin <= 7; pin++)
  {
    digitalWrite(pin, LOW);
  }
  digitalWrite(2, HIGH);
  digitalWrite(7, HIGH);
  semaforo_1();
}