// Include the Wire library for I2C communication with MPU6050
#include <Wire.h>
// Include the Adafruit MPU6050 library
#include <Adafruit_MPU6050.h>
#include <Adafruit_Sensor.h>

// Define the pin numbers for the PIR sensor, MPU6050, and LED
const int pirPin = 4;           // PIR sensor input pin
const int ledPin = 13;          // LED output pin

// Create an instance of the Adafruit MPU6050 class
Adafruit_MPU6050 mpu;

// Define a flag to track whether motion is detected by either sensor
bool motionDetected = false;

void setup() {
  pinMode(pirPin, INPUT);      // Set PIR sensor pin as input
  pinMode(ledPin, OUTPUT);     // Set LED pin as output
  
  // Initialize the MPU6050
  if (!mpu.begin()) {
    Serial.println("Failed to find MPU6050 chip");
    while (1) {
      delay(10);
    }
  }
  mpu.setAccelerometerRange(MPU6050_RANGE_2_G);
  mpu.setGyroRange(MPU6050_RANGE_250_DEG);
}

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

  // Read accelerometer data
  sensors_event_t accelEvent;
  mpu.getAccelerometerSensor()->getEvent(&accelEvent);

  // Read gyroscope data
  sensors_event_t gyroEvent;
  mpu.getGyroSensor()->getEvent(&gyroEvent);

  // If motion is detected by either sensor, turn on the LED
  if (pirState == HIGH || abs(accelEvent.acceleration.x) > 0.5 || abs(accelEvent.acceleration.y) > 0.5 || abs(accelEvent.acceleration.z) > 0.5 ||
      abs(gyroEvent.gyro.x) > 1 || abs(gyroEvent.gyro.y) > 1 || abs(gyroEvent.gyro.z) > 1) {
    digitalWrite(ledPin, HIGH);
  } else {
    digitalWrite(ledPin, LOW);
  }
}