How to Interface PS2 Controller to Arduino Uno

  1#include "PS2X_lib.h"  //for v1.6
  2
  3PS2X ps2x; // create PS2 Controller Class
  4
  5//right now, the library does NOT support hot pluggable controllers, meaning 
  6//you must always either restart your Arduino after you conect the controller, 
  7//or call config_gamepad(pins) again after connecting the controller.
  8int error = 0; 
  9byte type = 0;
 10byte vibrate = 0;
 11
 12void setup(){
 13  Serial.begin(115200);
 14  
 15  error = ps2x.config_gamepad(10,12,11,13, false, false);   //setup pins and settings:  GamePad(clock, command, attention, data, Pressures?, Rumble?) check for error
 16  
 17  if(error == 0){
 18    Serial.println("Found Controller, configured successful");
 19    Serial.println("Try out all the buttons, X will vibrate the controller, faster as you press harder;");
 20    Serial.println("holding L1 or R1 will print out the analog stick values.");
 21    Serial.println("Go to www.billporter.info for updates and to report bugs.");
 22  }
 23   
 24  else if(error == 1)
 25    Serial.println("No controller found, check wiring, see readme.txt to enable debug. visit www.billporter.info for troubleshooting tips");
 26   
 27  else if(error == 2)
 28    Serial.println("Controller found but not accepting commands. see readme.txt to enable debug. Visit www.billporter.info for troubleshooting tips");
 29   
 30  else if(error == 3)
 31    Serial.println("Controller refusing to enter Pressures mode, may not support it. ");
 32   
 33  type = ps2x.readType(); 
 34    
 35  switch(type) {
 36    case 0:
 37      Serial.println("Unknown Controller type");
 38      break;
 39    case 1:
 40      Serial.println("DualShock Controller Found");
 41      break;
 42    case 2:
 43      Serial.println("GuitarHero Controller Found");
 44      break;
 45    default:
 46      break;
 47  }
 48}
 49
 50void loop(){
 51   /* You must Read Gamepad to get new values
 52   Read GamePad and set vibration values
 53   ps2x.read_gamepad(small motor on/off, larger motor strenght from 0-255)
 54   if you don't enable the rumble, use ps2x.read_gamepad(); with no values
 55   
 56   you should call this at least once a second
 57   */
 58   
 59    ps2x.read_gamepad(false, vibrate);          //read controller and set large motor to spin at 'vibrate' speed
 60    
 61    if(ps2x.Button(PSB_START))                   //will be TRUE as long as button is pressed
 62      Serial.println("Start is being held");
 63    if(ps2x.Button(PSB_SELECT))
 64      Serial.println("Select is being held");
 65         
 66    if(ps2x.Button(PSB_PAD_UP)) {         //will be TRUE as long as button is pressed
 67      Serial.println("UP is being held");
 68    }
 69    if(ps2x.Button(PSB_PAD_RIGHT)){
 70      Serial.println("Right is being held");
 71    }
 72    if(ps2x.Button(PSB_PAD_LEFT)){
 73      Serial.println("LEFT is being held");
 74    }
 75    if(ps2x.Button(PSB_PAD_DOWN)){
 76      Serial.println("DOWN is being held");
 77    }   
 78    
 79    if (ps2x.NewButtonState())               //will be TRUE if any button changes state (on to off, or off to on)
 80    {
 81        if(ps2x.Button(PSB_L3))
 82          Serial.println("L3 pressed");
 83        if(ps2x.Button(PSB_R3))
 84          Serial.println("R3 pressed");
 85        if(ps2x.Button(PSB_L2))
 86          Serial.println("L2 pressed");
 87        if(ps2x.Button(PSB_R2))
 88          Serial.println("R2 pressed");
 89    }   
 90         
 91    if(ps2x.ButtonPressed(PSB_RED))             //will be TRUE if button was JUST pressed
 92          Serial.println("Circle just pressed");
 93
 94    if(ps2x.ButtonReleased(PSB_RED))             //will be TRUE if button was JUST released
 95          Serial.println("Circle just released"); 
 96
 97
 98    if(ps2x.ButtonPressed(PSB_PINK))             //will be TRUE if button was JUST pressed
 99          Serial.println("Square just pressed");
100                  
101    if(ps2x.ButtonReleased(PSB_PINK))             //will be TRUE if button was JUST released
102          Serial.println("Square just released");     
103
104    if(ps2x.ButtonPressed(PSB_GREEN))             //will be TRUE if button was JUST pressed
105          Serial.println("Triangle just pressed");
106                  
107    if(ps2x.ButtonReleased(PSB_GREEN))             //will be TRUE if button was JUST released
108          Serial.println("Triangle just released");   
109
110    if(ps2x.ButtonPressed(PSB_BLUE))             //will be TRUE if button was JUST pressed
111          Serial.println("X just pressed"); 
112                  
113    if(ps2x.ButtonReleased(PSB_BLUE))             //will be TRUE if button was JUST released
114         Serial.println("X just released");   
115
116         
117    //if(ps2x.NewButtonState(PSB_BLUE))            //will be TRUE if button was JUST pressed OR released
118    //     Serial.println("X just changed");    
119    
120    if(ps2x.Button(PSB_L1) || ps2x.Button(PSB_R1)) // print stick values if either is TRUE
121    {
122        Serial.print("Stick Values:");
123        Serial.print(ps2x.Analog(PSS_LY), DEC); // LY
124        Serial.print(",");
125        Serial.print(ps2x.Analog(PSS_LX), DEC); // LX
126        Serial.print(",");
127        Serial.print(ps2x.Analog(PSS_RY), DEC); // RY
128        Serial.print(",");
129        Serial.println(ps2x.Analog(PSS_RX), DEC); // RX
130    } 
131    
132 delay(50);
133}