Re, merci du conseil voilà le code entre balises du coup 
//Bibliothèques
#include <Adafruit_GFX.h>
#include <Adafruit_TFTLCD.h>
#include <TouchScreen.h>
#include <MCUFRIEND_kbv.h>
#include <RCSwitch.h>
//Pins de l'ecran
#define LCD_CS A3
#define LCD_CD A2
#define LCD_WR A1
#define LCD_RD A0
#define LCD_RESET A4
//definitions des couleurs
#define BLACK 0x0000
#define BLUE 0x001F
#define RED 0xF800
#define GREEN 0x07E0
#define CYAN 0x07FF
#define MAGENTA 0xF81F
#define YELLOW 0xFFE0
#define WHITE 0xFFFF
#define ILI9341_BLACK 0x0000
#define ILI9341_NAVY 0x000F
#define ILI9341_DARKGREEN 0x03E0
#define ILI9341_DARKCYAN 0x03EF
#define ILI9341_MAROON 0x7800
#define ILI9341_PURPLE 0x780F
#define ILI9341_OLIVE 0x7BE0
#define ILI9341_LIGHTGREY 0xC618
#define ILI9341_DARKGREY 0x7BEF
#define ILI9341_BLUE 0x001F
#define ILI9341_GREEN 0x07E0
#define ILI9341_CYAN 0x07FF
#define ILI9341_RED 0xF800
#define ILI9341_MAGENTA 0xF81F
#define ILI9341_YELLOW 0xFFE0
#define ILI9341_WHITE 0xFFFF
#define ILI9341_ORANGE 0xFD20
#define ILI9341_GREENYELLOW 0xAFE5
#define ILI9341_PINK 0xF81F
//definition fonction tactile
#define YP A2
#define XM A3
#define YM 8
#define XP 9
#define TS_MINX 130
#define TS_MAXX 905
#define TS_MINY 75
#define TS_MAXY 930
#define MINPRESSURE 10
#define MAXPRESSURE 1000
//initialisation objet ecran
MCUFRIEND_kbv tft;
RCSwitch mySwitch = RCSwitch();
TouchScreen ts = TouchScreen(XP, YP, XM, YM, 300);
//création des boutons
#define BUTTON_X 20
#define BUTTON_Y 20
#define BUTTON_W 100
#define BUTTON_H 80
#define BUTTON_SPACING_X 180
#define BUTTON_SPACING_Y 150
#define TWO_BUTTON_SPACING_X 180
#define TWO_BUTTON_SPACING_Y 150
#define BUTTON_TEXTSIZE 2
//variable dessin
String page;
//fonctions
void start(void);
void drawHomeIcon(void);
void StatusBar(void);
void Touch();
void Menu1(void);
void setup() {
mySwitch.enableTransmit(10);
delay(2000);
uint16_t identifier = tft.readID();
tft.reset();
tft.begin(identifier);
tft.setRotation(0);
tft.fillScreen(BLACK);
delay(1);
start();
Serial.begin(9600);
}
void loop() {
Touch();
}
/*--------------------------------------------------------------------------- dessin*/
void drawHomeIcon() { /* DRAW HOME ICON */
tft.fillTriangle(5, 15, 25, 0, 44, 15, ILI9341_DARKGREY); // roof background
tft.drawTriangle(5, 15, 25, 0, 44, 15, BLACK); // roof border
tft.fillRect(31, 2, 7, 10, RED); // chimeney background
tft.drawRect(31, 2, 7, 10, BLACK); // chimeney border
tft.fillRect(5, 15, 40, 24, WHITE); // house background
tft.drawRect(5, 15, 40, 24, BLACK); // house border
tft.fillRect(19, 22, 13, 16, RED); // door background
tft.drawRect(19, 22, 13, 16, BLACK); // door border
}
void start()
{
tft.drawCircle(tft.width() / 2, tft.height() / 2 + 30, 120, CYAN);
tft.fillCircle(tft.width() / 2, tft.height() / 2 + 30, 116, YELLOW);
tft.fillCircle(tft.width() / 2, tft.height() / 2 + 30, 100, BLACK);
tft.fillCircle(tft.width() / 2, tft.height() / 2 + 30, 80, CYAN);
tft.fillCircle(tft.width() / 2, tft.height() / 2 + 30, 75, BLACK);
tft.setCursor(115, 260);
tft.setTextColor(WHITE);
tft.setTextSize(3);
tft.print("START");
tft.fillRoundRect(15, 419, 283, 48, 10, CYAN);
tft.setCursor(90, 432);
tft.setTextColor(BLACK);
tft.setTextSize(2);
tft.print("S H A - 2017");
page = "start";
}
void Menu1()
{
tft.fillRect(0,0,320,480,BLACK);
StatusBar();
page = "Menu1";
}
void StatusBar()
{
tft.fillRect(0, 0, 480, 40, CYAN); // Draw Status Bar background
tft.drawRect(0, 0, 320, 480, WHITE);
drawHomeIcon();
}
/* if (CurrentPage != "Home") {
drawHomeIcon();
}
*/
void Touch()
{
pinMode(XM, OUTPUT);
pinMode(YP, OUTPUT);
TSPoint p = ts.getPoint();
if (p.z > MINPRESSURE && p.z < MAXPRESSURE)
{
p.x = map(p.x, TS_MINX, TS_MAXX, 0, tft.width());
p.y = map(p.y, TS_MINY, TS_MAXY, 0, tft.height());
}
//partie retour
if (page != "start" && 339<p.y > 310 && 60<p.x > 0)
{
start();
}
if (page == "start" && 100<p.x<150 && 240<p.y<280)
{
tft.fillRect(0,0,320,480,BLACK);
Menu1();
Serial.print("debut start");
}
}