#include <Arduino.h>

const int ledPins[] = {1, 4, 5, 2, 3, 6};
const int numLeds = sizeof(ledPins) / sizeof(ledPins[0]);
const int pwmFrequency = 3639;
const int minFrequency = 1;
const int maxFrequency = 60;

void setup() {
  for (int i = 0; i < numLeds; i++) {
    pinMode(ledPins[i], OUTPUT);
    ledcSetup(i, pwmFrequency, 8);
    ledcAttachPin(ledPins[i], i);
  }
}

void loop() {
  for (int frequency = minFrequency; frequency <= maxFrequency; frequency++) {
    for (int ledIndex = 0; ledIndex < numLeds; ledIndex++) {
      // Encender gradualmente
      for (int pwmValue = 0; pwmValue <= 255; pwmValue++) {
        ledcWrite(ledIndex, pwmValue);
        delay(8.333);
      }
      
      // Apagar gradualmente
      for (int pwmValue = 255; pwmValue >= 0; pwmValue--) {
        ledcWrite(ledIndex, pwmValue);
        delay(8.333);
      }
    }
  }
}