const int LDR_PIN = 34;    // Input analog dari LDR
const int BTN_PIN = 27;    // Input digital dari push button
const int LED_PIN = 2;     // Output ke LED

int THRESHOLD = 900; // Ambang cahaya, sesuaikan nanti lewat serial monitor

void setup() {
  Serial.begin(115200);
  pinMode(BTN_PIN, INPUT);
  pinMode(LED_PIN, OUTPUT);
  Serial.println("=== Uji Simulasi ESP32: LDR + Tombol + LED ===");
  Serial.println("Kondisi LED: ON jika (gelap) && (tombol ditekan)");
}

void loop() {
  int nilaiLDR = analogRead(LDR_PIN);     // baca sensor cahaya
  int tombol = digitalRead(BTN_PIN);      // baca tombol
  
  bool gelap = (nilaiLDR < THRESHOLD);    // logika gelap
  bool ditekan = (tombol == HIGH);        // logika tombol
  
  if (gelap && ditekan) {
    digitalWrite(LED_PIN, HIGH);          // LED menyala
  } else {
    digitalWrite(LED_PIN, LOW);           // LED mati
  }

  Serial.print("LDR = ");
  Serial.print(nilaiLDR);
  Serial.print(gelap ? " (Gelap)" : " (Terang)");
  Serial.print(" | Tombol = ");
  Serial.print(ditekan ? "TEKAN" : "LEPAS");
  Serial.print(" | LED = ");
  Serial.println(digitalRead(LED_PIN) ? "ON" : "OFF");

  delay(100);
}