//Fab Academy jesus Lopez 2019

#include <SoftwareSerial.h>

#define RX   1
#define TX   0
SoftwareSerial myserial(RX, TX);

boolean abierto;

void setup()
{
  pinMode(3, OUTPUT);
  pinMode(0, OUTPUT);
  abierto = false;
  //Serial.begin(9600);
  myserial.begin(9600);
}

void loop()
{
  int val;
  if (myserial.available()) {
    val = myserial.read();
    //Serial.println(val);

    if (val > 6) {
      if (abierto) {
        cerrar();
        abierto = false;
      }
    } else {
      if (!abierto)
        abrir();
      abierto = true;
    }

  }
  delay(2);

}

void abrir() {
  for (int i = 0; i < 45; ++i) {
    digitalWrite(3, HIGH);
    delayMicroseconds(1000);
    digitalWrite(3, LOW);
    delayMicroseconds(1000);
    digitalWrite(0, HIGH);
    delayMicroseconds(2000);
    digitalWrite(0, LOW);
    delayMicroseconds(1800);
  }

}

void cerrar() {
  for (int i = 0; i < 45; ++i) {
    digitalWrite(3, HIGH);
    delayMicroseconds(1500);
    digitalWrite(3, LOW);
    delayMicroseconds(1800);
    digitalWrite(0, HIGH);
    delayMicroseconds(1500);
    digitalWrite(0, LOW);
    delayMicroseconds(1800);
  }

}