#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <Adafruit_BME280.h>

// BME280 I2C address is 0x76(108)
#define Addr 0x76
Adafruit_BME280 bme;

// LCD Display Configuration
LiquidCrystal_I2C lcd(0x27, 20, 4); // Set the LCD I2C address and size (20x4)

void setup()
{
  // Initialize I2C communication as MASTER
  Wire.begin();

  // Initialize Serial communication, set baud rate = 9600
  Serial.begin(9600);

  // Initialize the LCD
  lcd.init();
  lcd.backlight(); // Turn on the backlight
  lcd.setCursor(0, 0);
  lcd.print("Temp:    C");
  lcd.setCursor(0, 1);
  lcd.print("Temp:    F");
  lcd.setCursor(0, 2);
  lcd.print("Pressure: hPa");
  lcd.setCursor(0, 3);
  lcd.print("Humidity: %");
  
  // Initialize the BME280 sensor
  if (!bme.begin(Addr))
  {
    Serial.println("Could not find a valid BME280 sensor, check wiring!");
    while (1);
  }
}

void loop()
{
  // Read sensor data
  float cTemp = bme.readTemperature();
  float fTemp = cTemp * 1.8 + 32;
  float pressure = bme.readPressure() / 100.0F; // Convert pressure to hPa
  float humidity = bme.readHumidity();
  
  // Display data on the LCD
  lcd.setCursor(7, 0);
  lcd.print(cTemp, 2);
  lcd.setCursor(7, 1);
  lcd.print(fTemp, 2);
  lcd.setCursor(11, 2);
  lcd.print(pressure, 2);
  lcd.setCursor(11, 3);
  lcd.print(humidity, 2);
  
  // Output data to serial monitor
  Serial.print("Temperature in Celsius : ");
  Serial.print(cTemp);
  Serial.println(" C");
  Serial.print("Temperature in Fahrenheit : ");
  Serial.print(fTemp);
  Serial.println(" F");
  Serial.print("Pressure : ");
  Serial.print(pressure);
  Serial.println(" hPa");
  Serial.print("Relative Humidity : ");
  Serial.print(humidity);
  Serial.println(" %");
  
  delay(1000);
}