PS2 shield exaples

hi everybody
i'm new here
can somebody please share some of working codes using the ps2?
i'm new here
can somebody please share some of working codes using the ps2?
//Cytron PS2 Shield (SHIELD-PS2)
//www.cytron.com.my
//sample code to retrieve a btn status on PS2 Controller
#include <Shield_PS2.h>
//declare class objects
PS2 ps2=PS2(); //PS2 class object: ps2
#define LEDPIN 13
void setup()
{
ps2.init(9600, 0, 1); //initialize the main board to use desired (baudrate, rx, tx)
//for Arduino Mega use RX:10, TX: 11 for software serial
//for Arduino Leonardo use pin 8, 9, 10, 11 as RX and TX for software serial
pinMode(LEDPIN, OUTPUT);
digitalWrite(LEDPIN,LOW);
}
void loop()
{
if( ps2.getval(p_select)==0) //LED on Main Board will light up if Select button is pressed
{
digitalWrite(LEDPIN,HIGH);
}
else
{
digitalWrite(LEDPIN,LOW);
}
}