#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);
int i, j;
int val;
int temp = A0; 
void setup() 
{
  Serial.begin(9600);
  lcd.init();       
  lcd.clear();       
  lcd.backlight();  
  i = 15;              
  j = 0;       
}
void loop() 
{
  val = analogRead(temp);
  float mv = (val / 1024.0) * 5000;
  float cel = mv / 10;
  float far = (cel * 9.0) / 5.0 + 32; 
  lcd.print("Temp: ");
  lcd.print(cel);
  lcd.print((char)223); 
  lcd.print("C ");
  lcd.print("F: ");
  lcd.print(far);
  lcd.print("Fahrenheit");
  delay(5000);
  Serial.print("Temperature in Celsius = ");
  Serial.print(cel);
  Serial.println();
  Serial.print("Temperature in Fahrenheit = ");
  Serial.print(far);
  Serial.println();
  delay(5000);
}