//SEMAFORO DE CRUCE
//PRACTICA 1: INICIANDO CON NODE-SIMU
int v1 = 23,a1 = 22,r1 = 21;
int v2 = 16,a2 = 4,r2 = 0;
void setup() {
  pinMode(r1, OUTPUT);
  pinMode(a1, OUTPUT);
  pinMode(v1, OUTPUT);
  pinMode(r2, OUTPUT);
  pinMode(a2, OUTPUT);
  pinMode(v2, OUTPUT);
}
//Logica del sistema
void loop() {
  //Utilizando tabla de estados
  // estado 1
  digitalWrite(r1, LOW);
  digitalWrite(a1, LOW);
  digitalWrite(v1, HIGH);
  digitalWrite(r2, HIGH);
  digitalWrite(a2, LOW);
  digitalWrite(v2, LOW);
  delay(2000);
  digitalWrite(v1, LOW);
  delay(250);
  digitalWrite(v1, HIGH);
  delay(500);
  digitalWrite(v1, LOW);
  delay(250);
  digitalWrite(v1, HIGH);
  delay(500);
  digitalWrite(v1, LOW);
  delay(250);
  digitalWrite(v1, HIGH);
  //estado 2
  digitalWrite(r1, LOW);
  digitalWrite(a1, HIGH);
  digitalWrite(v1, LOW);
  digitalWrite(r2, HIGH);
  digitalWrite(a2, LOW);
  digitalWrite(v2, LOW);
  delay(2000);
  //estado 3.
  digitalWrite(r1, HIGH);
  digitalWrite(a1, LOW);
  digitalWrite(v1, LOW);
  digitalWrite(r2, LOW);
  digitalWrite(a2, LOW);
  digitalWrite(v2, HIGH);
  delay(2000);
  digitalWrite(v2, LOW);
  delay(500);
  digitalWrite(v2, HIGH);
  delay(250);
  digitalWrite(v2, LOW);
  delay(500);
  digitalWrite(v2, HIGH);
  delay(250);
  digitalWrite(v2, LOW);
  delay(500);
  digitalWrite(v2, HIGH);
  //estado 4.
  digitalWrite(r1, HIGH);
  digitalWrite(a1, LOW);
  digitalWrite(v1, LOW);
  digitalWrite(r2, LOW);
  digitalWrite(a2, HIGH);
  digitalWrite(v2, LOW);
  delay(2000);
  return;
}