// Define pin numbers
const int pirPin = 14;   // Pin PIR sensor connected
const int relayPin = 27; // Pin relay connected
const int ledPin = 32;   // Pin LED connected

// Variable to store PIR state
int pirState = LOW;

void setup() {
  // Initialize serial communication
  Serial.begin(115200);
  
  // Initialize PIR sensor pin as an input
  pinMode(pirPin, INPUT);
  
  // Initialize relay and LED pins as outputs
  pinMode(relayPin, OUTPUT);
  pinMode(ledPin, OUTPUT);
  
  // Initially turn off relay and LED
  digitalWrite(relayPin, LOW);
  digitalWrite(ledPin, LOW);
}

void loop() {
  // Read the state of the PIR sensor
  pirState = digitalRead(pirPin);

  if (pirState == HIGH) {
    // Motion detected, turn on relay and LED
    Serial.println("Ada orang");
    digitalWrite(relayPin, HIGH); // Turn on relay
    digitalWrite(ledPin, HIGH);   // Turn on LED
  } else {
    // No motion detected, turn off relay and LED
    Serial.println("Tidak ada orang");
    digitalWrite(relayPin, LOW);  // Turn off relay
    digitalWrite(ledPin, LOW);    // Turn off LED
  }

  // Add a small delay to prevent bouncing
  delay(100);
}