#include <Wire.h>
#include <MPU6050.h> 

MPU6050 mpu; 
const int ledPin = 8; 
const float tiltThreshold = 30.0; 
void setup() {
  Wire.begin();
  mpu.initialize();
  
  pinMode(ledPin, OUTPUT);
  
  Serial.begin(9600);
}

void loop() {
 
  int16_t ax, ay, az;
  mpu.getAcceleration(&ax, &ay, &az);
  
  
  float tiltAngle = atan2(-ay, az) * 180.0 ; 
  if (abs(tiltAngle) > tiltThreshold) {
    digitalWrite(ledPin, HIGH);
  } else {
    digitalWrite(ledPin, LOW); 
  }
  
  
  Serial.print("Tilt Angle: ");
  Serial.println(tiltAngle);
  
  delay(100); 
}