/*
 * ESP32 PWM menggunakan analogWrite - Metode Sederhana
 * Compatible dengan ESP32 Core 3.X
 * 
 * Berdasarkan: Random Nerd Tutorials ESP32 PWM Guide
 */

// ===== KONFIGURASI PIN =====
const int ledPin = 16;  // GPIO16 untuk LED

// ===== SETUP =====
void setup() {
  // Untuk analogWrite, tidak perlu pinMode()
  // ESP32 akan mengatur otomatis
  Serial.begin(115200);
  Serial.println("ESP32 PWM dengan analogWrite - Started");
}

// ===== LOOP UTAMA =====
void loop() {
  // Increase the LED brightness
  for(int dutyCycle = 0; dutyCycle <= 255; dutyCycle++) {
    // Changing the LED brightness with PWM
    analogWrite(ledPin, dutyCycle);
    delay(15);
  }
  
  // Decrease the LED brightness
  for(int dutyCycle = 255; dutyCycle >= 0; dutyCycle--) {
    // Changing the LED brightness with PWM
    analogWrite(ledPin, dutyCycle);
    delay(15);
  }
}