// Simple Arduino Motion Detector with LED and Servo

// Include the Servo library
#include <Servo.h>

// Define pins
int myPIR = 6;     // PIR motion sensor pin
int myLED = 2;     // LED pin
int servoPin = 3;  // Servo pin (using the previous buzzer pin)

// Create servo object
Servo myServo;

// Variable to store motion state
int motionState = 0;

void setup() {
  // Start serial communication
  Serial.begin(9600);
  
  // Setup pin modes
  pinMode(myPIR, INPUT);
  pinMode(myLED, OUTPUT);
  
  // Attach servo to pin
  myServo.attach(servoPin);
  
  // Initialize servo to 0 degrees
  myServo.write(0);
  
  // Initial message
  Serial.println("Motion detector with servo ready!");
}

void loop() {
  // Read PIR sensor
  motionState = digitalRead(myPIR);
  
  if (motionState == HIGH) {
    // Motion detected
    digitalWrite(myLED, HIGH);  // Turn on LED
    myServo.write(90);          // Move servo to 90 degrees
    Serial.println("Light on");
  } 
  else {
    // No motion
    digitalWrite(myLED, LOW);   // Turn off LED
    myServo.write(0);           // Move servo to 0 degrees
    Serial.println("Light off");
  }
  
  delay(500);  // Short delay
}