#define sensor A0

int minimo = 1500, maximo = 0;

void setup() {
  for (int i = 4; i<13; i++) {
    pinMode(i,OUTPUT);
  }
  pinMode(sensor, INPUT);
  Serial.begin(9600);
}

void loop() {
  int leitura = analogRead(sensor);
  if(leitura >= maximo){
    maximo = leitura;
  }else if(leitura < minimo){
    minimo = leitura;
  }
  /*Serial.print("Máximo: ");
  Serial.print(maximo);
  Serial.print(" - Mínimo: ");
  Serial.println(minimo);*/
  int nivel = map(leitura,112,360,1,9);
  Serial.print("Nível: ");
  Serial.println(nivel);
  if(nivel == 1){
    digitalWrite(4, 1);
    digitalWrite(5, 0);
    digitalWrite(6, 0);
    digitalWrite(7, 0);
    digitalWrite(8, 0);
    digitalWrite(9, 0);
    digitalWrite(10, 0);
    digitalWrite(11, 0);
    digitalWrite(12, 0);
  }else if(nivel == 2){
    digitalWrite(4, 1);
    digitalWrite(5, 1);
    digitalWrite(6, 0);
    digitalWrite(7, 0);
    digitalWrite(8, 0);
    digitalWrite(9, 0);
    digitalWrite(10, 0);
    digitalWrite(11, 0);
    digitalWrite(12, 0);
  }else if(nivel == 3){
    digitalWrite(4, 1);
    digitalWrite(5, 1);
    digitalWrite(6, 1);
    digitalWrite(7, 0);
    digitalWrite(8, 0);
    digitalWrite(9, 0);
    digitalWrite(10, 0);
    digitalWrite(11, 0);
    digitalWrite(12, 0);
  }
  else if(nivel == 4){
    digitalWrite(4, 1);
    digitalWrite(5, 1);
    digitalWrite(6, 1);
    digitalWrite(7, 1);
    digitalWrite(8, 0);
    digitalWrite(9, 0);
    digitalWrite(10, 0);
    digitalWrite(11, 0);
    digitalWrite(12, 0);
  }
  else if(nivel == 5){
    digitalWrite(4, 1);
    digitalWrite(5, 1);
    digitalWrite(6, 1);
    digitalWrite(7, 1);
    digitalWrite(8, 1);
    digitalWrite(9, 0);
    digitalWrite(10, 0);
    digitalWrite(11, 0);
    digitalWrite(12, 0);
  }
  else if(nivel == 6){
    digitalWrite(4, 1);
    digitalWrite(5, 1);
    digitalWrite(6, 1);
    digitalWrite(7, 1);
    digitalWrite(8, 1);
    digitalWrite(9, 1);
    digitalWrite(10, 0);
    digitalWrite(11, 0);
    digitalWrite(12, 0);
  }
  else if(nivel == 7){
    digitalWrite(4, 1);
    digitalWrite(5, 1);
    digitalWrite(6, 1);
    digitalWrite(7, 1);
    digitalWrite(8, 1);
    digitalWrite(9, 1);
    digitalWrite(10, 1);
    digitalWrite(11, 0);
    digitalWrite(12, 0);
  }
  else if(nivel == 8){
    digitalWrite(4, 1);
    digitalWrite(5, 1);
    digitalWrite(6, 1);
    digitalWrite(7, 1);
    digitalWrite(8, 1);
    digitalWrite(9, 1);
    digitalWrite(10, 1);
    digitalWrite(11, 1);
    digitalWrite(12, 0);
  }
  else if(nivel == 9){
    digitalWrite(4, 1);
    digitalWrite(5, 1);
    digitalWrite(6, 1);
    digitalWrite(7, 1);
    digitalWrite(8, 1);
    digitalWrite(9, 1);
    digitalWrite(10, 1);
    digitalWrite(11, 1);
    digitalWrite(12, 1);
  }
}