const int pirPin = 14;    // PIR sensor output
const int ldrPin = 34;   // LDR analog output
const int ledPin = 2;    // LED acts as bulb

int threshold = 500;     // Adjust for darkness

void setup() {
  pinMode(pirPin, INPUT);
  pinMode(ledPin, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  int motion = digitalRead(pirPin);   // Read PIR sensor
  int ldrValue = analogRead(ldrPin);  // Read LDR value

  Serial.print("LDR: ");
  Serial.print(ldrValue);
  Serial.print(" | Motion: ");
  Serial.println(motion);

  // Turn bulb ON only if dark AND motion is detected
  if (ldrValue < threshold && motion == HIGH) {
    digitalWrite(ledPin, HIGH);
    Serial.println("Bulb ON");
  } else {
    digitalWrite(ledPin, LOW);
    Serial.println("Bulb OFF");
  }

  delay(200);
}