#include <LiquidCrystal_I2C.h>

int freq[] = {10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20}; // 11 elemen
int timeArray[] = {1000, 1500, 2000, 2500, 3000, 3500, 4000, 4500, 5000}; // dalam ms

void setup() {
  Serial.begin(115200);
  pinMode(buttonPin, INPUT_PULLUP);

  // Setup PWM
  ledcSetup(pwmChannel, 10000, 8); // 30kHz default
  ledcAttachPin(buzzerPin, pwmChannel);

  Serial.println("Pengusir tikus mode array siap...");
}

void loop() {
  if (digitalRead(buttonPin) == LOW) {
    // Ambil indeks acak
    int freqIndex = random(0, sizeof(freq) / sizeof(freq[0]));
    int timeIndex = random(0, sizeof(timeArray) / sizeof(timeArray[0]));

    int selectedFreq = freq[freqIndex] * 1000; // dari kHz ke Hz
    int selectedTime = timeArray[timeIndex];

    // Tampilkan di serial monitor
    Serial.print("Frekuensi: ");
    Serial.print(selectedFreq);
    Serial.print(" Hz | Delay: ");
    Serial.print(selectedTime);
    Serial.println(" ms");

    // Jalankan buzzer
    ledcWriteTone(pwmChannel, selectedFreq);
    ledcWrite(pwmChannel, 127); // 50% duty

    delay(selectedTime);

    // Matikan
    ledcWrite(pwmChannel, 0);
    delay(300); // Jeda antarsiklus
  }
}