ATX2 Simple PSX Wireless Joystick Show GLCD

#include <ATX2.h>
#include <PS2X_lib.h>
#define PS2_DAT 24
#define PS2_CMD 25
#define PS2_SEL 26
#define PS2_CLK 27
PS2X ps2x ;
void setup(){
  delay(1000);
  setTextSize(2);
  glcd(0,0,"Connecting");
  while(1){
    int error = ps2x.config_gamepad(PS2_CLK, PS2_CMD, PS2_SEL, PS2_DAT,0,0);
    if(error==0){
      glcd(0,0, "OK ");
      delay(1000);
      glcdClear();
      break;
    }
    delay(500);
  }
}
void loop(){
  ps2x.read_gamepad(0,0);
  if(ps2x.Button(PSB_CIRCLE))       {
    glcd(1, 1, "Circle ");
  }
  else if(ps2x.Button(PSB_CROSS))   {
    glcd(1, 1, "Cross ");
  }
  else if(ps2x.Button(PSB_SQUARE))  {
    glcd(1, 1, "Square ");
  }
  else if(ps2x.Button(PSB_TRIANGLE)){
    glcd(1, 1, "Triangle");
  }
  else {
    glcd(1, 1, "        ");
  }
  delay(50);
}