@David : I actually didn't check that the picture was the same as my display, sorry.
@6v6gt : Thanks, I tried that. I wired as in the ino code :
#define CS_PIN 8
// MOSI=11, MISO=12, SCK=13
//XPT2046_Touchscreen ts(CS_PIN);
#define TIRQ_PIN 2
But all I get on the console is : "Pressure = 4095, x = 0, y = 0"
Did I miss anything?