#include <Servo.h>

// Define the servo objects
Servo leftWingServo;
Servo rightWingServo;
Servo leftTailServo;
Servo rightTailServo;

// Define the pin numbers for the servos
const int leftWingServoPin = 9;
const int rightWingServoPin = 10;
const int leftTailServoPin = 11;
const int rightTailServoPin = 12;

// Define the PIR sensor pin
const int pirSensorPin = 2;

// Define the angles for the wing flapping
const int minAngle = 0;
const int maxAngle = 180;

// Define the flapping speed (delay in milliseconds)
const int flappingSpeed = 01;

void setup() {
  // Attach the servo objects to the corresponding pins
  leftWingServo.attach(leftWingServoPin);
  rightWingServo.attach(rightWingServoPin);
  leftTailServo.attach(leftTailServoPin);
  rightTailServo.attach(rightTailServoPin);

  // Set initial positions
  leftWingServo.write(minAngle);
  rightWingServo.write(maxAngle);
  leftTailServo.write(minAngle);
  rightTailServo.write(maxAngle);

  // Initialize the PIR sensor pin as input
  pinMode(pirSensorPin, INPUT);
}

void loop() {
  // Check for motion detected by the PIR sensor
  if (digitalRead(pirSensorPin) == HIGH) {
    // Flap wings up
    for (int angle = minAngle; angle <= maxAngle; angle++) {
      leftWingServo.write(angle);
      rightWingServo.write(180 - angle);
      leftTailServo.write(angle);
      rightTailServo.write(180 - angle);
      delay(flappingSpeed);
    }

    // Flap wings down
    for (int angle = maxAngle; angle >= minAngle; angle--) {
      leftWingServo.write(angle);
      rightWingServo.write(180 - angle);
      leftTailServo.write(angle);
      rightTailServo.write(180 - angle);
      delay(flappingSpeed);
    }
  } else {
    // Stop the servos if no motion is detected
    leftWingServo.write(minAngle);
    rightWingServo.write(maxAngle);
    leftTailServo.write(minAngle);
    rightTailServo.write(maxAngle);
  }
}