#include <LiquidCrystal.h>

LiquidCrystal lcd( 7, 6, 5, 4, 3, 2);

int Tension ;
const int Potentiometer = A0 ;

void setup () {

  lcd.begin (16,1);

  lcd.print ("U =");


}

void loop() {

  int Valeur_P = analogRead (Potentiometer);

  float Tension = Valeur_P * ( 5.0 / 1023.0 );

  lcd. setCursor (4,0);

  lcd.print(Tension, 3) ;

  lcd. print(" V");

}