#include <Arduino.h>

const int TOMBOL_PIN = 14;
const int OUTPUT_PIN = 12;
const int POT_PIN = 34;
const int PWM_PIN = 25;
const int PWM_RES = 9;
const int DUTY_50 = 256;

int currentFrequency = 0;

void setup() {
  Serial.begin(115200);
  pinMode(POT_PIN, INPUT);
  pinMode(TOMBOL_PIN, INPUT);
  pinMode(OUTPUT_PIN, OUTPUT);

  if (!ledcAttach(PWM_PIN, 10, PWM_RES)) {
    Serial.println("Gagal attach PWM");
    while (1);
  }

  ledcWrite(PWM_PIN, DUTY_50);
}

void loop() {
  int potValue = analogRead(POT_PIN);
  int freq = map(potValue, 0, 4095, 10, 100000);

  if (freq != currentFrequency) {
    if (ledcChangeFrequency(PWM_PIN, freq, PWM_RES)) {
      Serial.print("Frekuensi PWM: ");
      Serial.print(freq);
      Serial.println(" Hz");
      currentFrequency = freq;
    } else {
      Serial.println("Gagal ubah frekuensi");
    }
  }

  // === Kontrol output pin 12 dari tombol di pin 14 ===
  int tombolState = digitalRead(TOMBOL_PIN);
  digitalWrite(OUTPUT_PIN, tombolState);

  delay(100);
}