#include <Wire.h>               // Include the Wire library for I2C
#include <LiquidCrystal_I2C.h>  // Include the LCD library

LiquidCrystal_I2C lcd(0x27, 16, 2); // Initialize the LCD with I2C address 0x27, 16 columns, and 2 rows

void setup() {
  pinMode(9, INPUT);    // Set pin 13 as input for the fire sensor
  pinMode(8, OUTPUT);   // Set pin 25 as output for the alarm
  Serial.begin(9600);    // Initialize serial communication at 9600 baud
  lcd.init();            // Initialize the LCD
  lcd.backlight();       // Turn on the backlight
  lcd.setCursor(0, 0);   // Set cursor to column 0, row 0
  lcd.print("Fire detection");
  lcd.setCursor(3, 1);   // Set cursor to column 3, row 1
  lcd.print("projects");
  delay(2000);           // Wait for 2 seconds
}

void loop() {
  lcd.clear();          // Clear the LCD display
  int val = digitalRead(8); // Read the value from pin 13
  Serial.println(val); // Print the value to the serial monitor
  
  if (val == 0) {
    Serial.println("Fire detected"); // Print to serial monitor if fire is detected
    digitalWrite(8, HIGH); // Turn on the alarm
    lcd.setCursor(5, 0);   // Set cursor to column 5, row 0
    lcd.print("Alert");
    lcd.setCursor(2, 1);   // Set cursor to column 2, row 1
    lcd.print("Fire Detected");
  } else {
    Serial.println("No Fire"); // Print to serial monitor if no fire is detected
    digitalWrite(8, LOW); // Turn off the alarm
    lcd.setCursor(5, 0);   // Set cursor to column 5, row 0
    lcd.print("Safe");
    lcd.setCursor(0, 1);   // Set cursor to column 0, row 1
    lcd.print("No Fire Detected");
  }
  
  delay(1000); // Wait for 1 second
}