int valorLDR = 0;
const int maxLuz = 1015;


void setup() {
  pinMode(9, OUTPUT);
  pinMode(10, OUTPUT);
  pinMode(11, OUTPUT);
  pinMode(12, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  valorLDR = analogRead(A0);
  Serial.println(valorLDR);

  if (valorLDR >= 812 && valorLDR <= 1015) {
    digitalWrite(11, HIGH);
    digitalWrite(10, HIGH);
    digitalWrite(9, LOW);
    Buzzer(3);
  } else if (  luzPorcen >= 50.00 &&  luzPorcen < 80.00) {
    digitalWrite(11, HIGH);
    digitalWrite(10, LOW);
    digitalWrite(9, HIGH);
    Buzzer(2);
  } else {
    digitalWrite(11, LOW);
    digitalWrite(10, HIGH);
    digitalWrite(9, HIGH);
    Buzzer(1);
  }

  delay(1000);


}
void Buzzer(int bipar) {
  for (int i = 0; i < bipar; i++) {
    digitalWrite(12, HIGH);
    delay(100);
    digitalWrite(12, LOW);
    delay(100);
  }
}