#include <OneWire.h>
#include <DallasTemperature.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>

// Pin where the DS18B20 is connected
#define ONE_WIRE_BUS 2

// Setup a oneWire instance to communicate with any OneWire devices
OneWire oneWire(ONE_WIRE_BUS);

// Pass our oneWire reference to DallasTemperature
DallasTemperature sensors(&oneWire);

// Create an LCD object with the I2C address 0x27 (common for many I2C LCDs)
LiquidCrystal_I2C lcd(0x27, 16, 2); // Change the address if needed

void setup() {
  // Start the serial communication for debugging
  Serial.begin(9600);
  
  // Start the temperature sensor
  sensors.begin();
  
  // Initialize the LCD
  lcd.begin(16, 2);
  lcd.backlight(); // Turn on the backlight
}

void loop() {
  // Request temperature readings
  sensors.requestTemperatures();
  
  // Get the temperature in Celsius
  float temperatureC = sensors.getTempCByIndex(0);
  
  // Print temperature to the Serial Monitor
  Serial.print("Temperature: ");
  Serial.print(temperatureC);
  Serial.println(" °C");

  // Clear the LCD and display the temperature
  lcd.clear();
  lcd.setCursor(0, 0); // Set cursor to first row
  lcd.print("Temp: ");
  lcd.print(temperatureC);
  lcd.print(" C");
  
  // Wait for a second before the next reading
  delay(1000);
}