#include <LiquidCrystal.h>
#include <Adafruit_MPU6050.h>
#include <Adafruit_Sensor.h>
#include <Wire.h>
#include <WiFi.h>
#include "ThingSpeak.h"

const char* wifiName = "Wokwi-GUEST";
const char* wifiPass = "";
const int myChannelNumber = 2311542;
const char* myApiKey = "FG87QBGM29ET4GFY";
const char* server = "api.thingspeak.com";
WiFiClient client;

Adafruit_MPU6050 mpu;

LiquidCrystal lcd(4, 15, 5, 18, 19, 23);

const int buzzerPin = 12;  
const int minFreq = 100;  // in Hz
const int maxFreq = 2000; // in Hz
const float maxTilt = 41.81; // maximum possible tilt in either direction in degrees

void setup() {

  Serial.begin(115200);

  pinMode(buzzerPin, OUTPUT);

  lcd.begin(20, 4);

  // Attempt to connect to Wi-Fi network:
  while (WiFi.status() != WL_CONNECTED) {
    Serial.print("Attempting to connect to SSID: ");
    Serial.println(wifiName);
    // Connect to WPA/WPA2 network:
    WiFi.begin(wifiName, wifiPass);
    delay(10000);  // Wait 10 seconds to connect
  }

  // Print Wi-Fi connection details:
  Serial.println("Connected to wifi");
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());
  
  // Initialize ThingSpeak
  ThingSpeak.begin(client);

  Serial.println("Adafruit MPU6050 test!");

  // Try to initialize!
  if (!mpu.begin()) {
    Serial.println("Failed to find MPU6050 chip");
    while (1) {
      delay(10);
    }
  }
  Serial.println("MPU6050 Found!");
  Serial.println(" ");

  mpu.setAccelerometerRange(MPU6050_RANGE_8_G);
  Serial.print("Accelerometer range set to: ");
  switch (mpu.getAccelerometerRange()) {
  case MPU6050_RANGE_2_G:
    Serial.println("+-2G");
    break;
  case MPU6050_RANGE_4_G:
    Serial.println("+-4G");
    break;
  case MPU6050_RANGE_8_G:
    Serial.println("+-8G");
    break;
  case MPU6050_RANGE_16_G:
    Serial.println("+-16G");
    break;
  }
  mpu.setGyroRange(MPU6050_RANGE_2000_DEG);
  Serial.print("Gyro range set to: ");
  switch (mpu.getGyroRange()) {
  case MPU6050_RANGE_250_DEG:
    Serial.println("+- 250 deg/s");
    break;
  case MPU6050_RANGE_500_DEG:
    Serial.println("+- 500 deg/s");
    break;
  case MPU6050_RANGE_1000_DEG:
    Serial.println("+- 1000 deg/s");
    break;
  case MPU6050_RANGE_2000_DEG:
    Serial.println("+- 2000 deg/s");
    break;
  }

  mpu.setFilterBandwidth(MPU6050_BAND_21_HZ);
  Serial.print("Filter bandwidth set to: ");
  switch (mpu.getFilterBandwidth()) {
  case MPU6050_BAND_260_HZ:
    Serial.println("260 Hz");
    break;
  case MPU6050_BAND_184_HZ:
    Serial.println("184 Hz");
    break;
  case MPU6050_BAND_94_HZ:
    Serial.println("94 Hz");
    break;
  case MPU6050_BAND_44_HZ:
    Serial.println("44 Hz");
    break;
  case MPU6050_BAND_21_HZ:
    Serial.println("21 Hz");
    break;
  case MPU6050_BAND_10_HZ:
    Serial.println("10 Hz");
    break;
  case MPU6050_BAND_5_HZ:
    Serial.println("5 Hz");
    break;
  }

  Serial.println("");
  delay(100);
}

void loop() {
  
  sensors_event_t a, g, temp;
  mpu.getEvent(&a, &g, &temp);

  ThingSpeak.setField(1, a.acceleration.x);
  ThingSpeak.setField(2, a.acceleration.y);
  ThingSpeak.setField(3, g.gyro.x);
  ThingSpeak.setField(4, g.gyro.y);
  ThingSpeak.setField(5, g.gyro.z);

  /* Print out the temperature value */
  Serial.print("Temperature: ");
  Serial.print(temp.temperature);
  Serial.println(" degC");

  Serial.println("");



  float tiltAngleX = atan2(a.acceleration.x, sqrt(a.acceleration.y * a.acceleration.y + a.acceleration.z * a.acceleration.z)) * 180 / M_PI;
  float tiltAngleY = atan2(a.acceleration.y, sqrt(a.acceleration.x * a.acceleration.x + a.acceleration.z * a.acceleration.z)) * 180 / M_PI;

  const float tiltThreshold = 0.1;
  const int gyroThreshold = 3.49;

  float totalTilt = sqrt(tiltAngleX * tiltAngleX + tiltAngleY * tiltAngleY);

  // Map the total tilt to the frequency range
  int frequency = map(totalTilt, 0, maxTilt, minFreq, maxFreq);

  lcd.clear();  // Clear the display

  // Check tilt based on X-axis
  if (a.acceleration.x > tiltThreshold) {
    lcd.setCursor(0, 0);
    lcd.print("TILTED RIGHT    ");
  } else if (a.acceleration.x < -tiltThreshold) {
    lcd.setCursor(0, 0);
    lcd.print("TILTED LEFT     ");
  } else {
    lcd.setCursor(0, 0);
    lcd.print("Stable - X AXIS");
  }

  // Display tilt angles for X axis
  lcd.setCursor(0, 1);
  lcd.print("X: ");
  lcd.print(tiltAngleX);
  lcd.print(" DEGREES  ");

  // Check tilt based on Y-axis
  if (a.acceleration.y > tiltThreshold) {
    lcd.setCursor(0, 2);
    lcd.print("TILTED BACKWARD ");
  } else if (a.acceleration.y < -tiltThreshold) {
    lcd.setCursor(0, 2);
    lcd.print("TILTED FORWARD  ");
  } else {
    lcd.setCursor(0, 2);
    lcd.print("Stable - Y AXIS");
  }

  // Display tilt angles for Y axis
  lcd.setCursor(0, 3);
  lcd.print("Y: ");
  lcd.print(tiltAngleY);
  lcd.print(" DEGREES  ");

  // Check for rapid rotation using gyroscope
    if(abs(g.gyro.x) > gyroThreshold || abs(g.gyro.y) > gyroThreshold || abs(g.gyro.z) > gyroThreshold) {
        // Rapid rotation detected!
        lcd.clear();
        lcd.setCursor(0,0);
        lcd.print("GYRO DETECTED: ");
        lcd.setCursor(0,1);
        lcd.print("Rapid rotation!");

        // Beep the buzzer three times quickly
        for (int i = 0; i < 5; i++) {
            tone(buzzerPin, 1000);  // 1000 Hz tone
            delay(100);  // tone duration
            noTone(buzzerPin);  // stop the tone
            delay(100);  // pause between beeps
        }
    }

  ThingSpeak.writeFields(myChannelNumber, myApiKey);

  // Play the tone on the buzzer
  tone(buzzerPin, frequency);
  delay(1000);
  noTone(buzzerPin);

  delay(1000);
}