const int ldrPin = 34;     
const int led[] = {13, 16, 5, 18, 21, 22}; 

void setup() {
  Serial.begin(9600);
  for (int i = 0; i < 6; i++) {
    pinMode(led[i], OUTPUT);
  }
}

void loop() {
  int ldr = analogRead(ldrPin);
  float rec = 100.0 / 4095.0; 
 int com = ldr * rec;
  Serial.print("EL RANGO DEL LRD ES: ");
  Serial.print(com);
  Serial.println("%");
  delay(500);


  for (int i = 0; i < 6; ++i){ 
    if (com >= (i + 1) * 15) {
       digitalWrite(led[i], HIGH);
    } else {
      digitalWrite(led[i], LOW);
  }
 }
  }