//YWROBOT
//Compatible with the Arduino IDE 1.0
//Library version:1.1
#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27,20,4);  // set the LCD address to 0x27 for a 16 chars and 2 line display
int X = 0;
int val = 0;
int bt_ = 13;
int led1 = 12;
void setup()
{
  Serial.begin(9600);
  pinMode(13, INPUT);
  pinMode(12, OUTPUT);
  digitalWrite(13,LOW);
  X >= 0;
  lcd.init();                         // allumer le lcd
  lcd.backlight();                
  lcd.setCursor(2,0);               // mettre le curseur a telle endroit
  lcd.print("Bienvenue");          // ecrire un message 
  lcd.setCursor(2,1);
  lcd.print("En BTS SN");
  delay(5000);
}


void loop()
{
  if(bt_ = HIGH){
    digitalWrite(12, HIGH);
  }

  lcd.clear();
  lcd.setCursor(1,0);
  lcd.print( X );
  lcd.setCursor(3,0);
  lcd.print("personnes ");

}