#include "Wire.h"
#include "LiquidCrystal_I2C.h"
LiquidCrystal_I2C LCD(0x27,16,2);
void setup() 
  {
    LCD.init(); 
    LCD.backlight();
    Serial.begin(9600);
  }
void loop() 
  {
    int valeur = analogRead(A0);
    float temperature_celcius = valeur * 100.0 / 1023.0;
    LCD.setCursor(0, 0);
    LCD.print("Temperature : ");
    LCD.setCursor(0, 1);
    LCD.print(temperature_celcius);
    LCD.print(" d.C ");
    delay(250);
  }