#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C ecranLCD(0x27, 16, 2);
#define POTEN A3

const int MIN_POT = 0;
const int MAX_POT = 1023;
const int MIN_VOL = 0;
const int MAX_VOL = 10;

void setup() {
  ecranLCD.begin(16, 2);
  ecranLCD.backlight();
  
  ecranLCD.print("Valeur : ");
  ecranLCD.setCursor(0,1);
  ecranLCD.print("Volume : ");
  ecranLCD.setCursor(0,3);
}

void loop() {
int valeurPoten = 0;
valeurPoten = analogRead(POTEN);
int valeurVolume = map(valeurPoten, MIN_POT ,MAX_POT, MIN_VOL, MAX_VOL);

  ecranLCD.setCursor(8,1);
  ecranLCD.print(valeurVolume);
  ecranLCD.print("   ");
  ecranLCD.setCursor(8,0);
  ecranLCD.print(valeurPoten);
  ecranLCD.print("   ");

}