PS2手柄遥控Arduino小车[通俗易懂]

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发布于 2022-07-01 20:52:08

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发布于 2022-07-01 20:52:08

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使用手柄遥控小车是经常要用到的，看到PS2手柄很6，就拿来尝试一下。 PS2手柄是索尼的PlayStation2游戏机的遥控手柄，因为这款手柄性价比较高，按键丰富，方便扩展到其它应用中，后来有人将其通讯协议破解，使得手柄可以用在遥控其他电器上，比如遥控控制机器人小车。

最主要的是这款手柄，拿来就可以用，有人已经将其通讯协议破解了。具体可以参考极客工坊。其PS2X_lib库，可以参见Github. 这种摇杆有无线的和有线的，都是连接到Arduino上，我用的是有线的。

1. 手柄测试

将库文件放入Arduino IDE的安装的libaries文件夹中。然后可以使用其中的example 例程测试一下。程序如下：

#include <PS2X_lib.h>  //for v1.6

/****************************************************************** * set pins connected to PS2 controller: * - 1e column: original * - 2e colmun: Stef? * replace pin numbers by the ones you use ******************************************************************/
#define PS2_DAT        13  //14 
#define PS2_CMD        11  //15
#define PS2_SEL        10  //16
#define PS2_CLK        12  //17

/****************************************************************** * select modes of PS2 controller: * - pressures = analog reading of push-butttons * - rumble = motor rumbling * uncomment 1 of the lines for each mode selection ******************************************************************/
//#define pressures true
#define pressures   false
//#define rumble true
#define rumble      false

PS2X ps2x; // create PS2 Controller Class

//right now, the library does NOT support hot pluggable controllers, meaning 
//you must always either restart your Arduino after you connect the controller, 
//or call config_gamepad(pins) again after connecting the controller.

int error = 0;
byte type = 0;
byte vibrate = 0;

// Reset func 
void (* resetFunc) (void) = 0;

void setup(){

  Serial.begin(115200);

  delay(500);  //added delay to give wireless ps2 module some time to startup, before configuring it

  //CHANGES for v1.6 HERE!!! **************PAY ATTENTION*************

  //setup pins and settings: GamePad(clock, command, attention, data, Pressures?, Rumble?) check for error
  error = ps2x.config_gamepad(PS2_CLK, PS2_CMD, PS2_SEL, PS2_DAT, pressures, rumble);

  if(error == 0){
    Serial.print("Found Controller, configured successful ");
    Serial.print("pressures = ");
    if (pressures)
      Serial.println("true ");
    else
      Serial.println("false");
    Serial.print("rumble = ");
    if (rumble)
      Serial.println("true)");
    else
      Serial.println("false");
    Serial.println("Try out all the buttons, X will vibrate the controller, faster as you press harder;");
    Serial.println("holding L1 or R1 will print out the analog stick values.");
    Serial.println("Note: Go to www.billporter.info for updates and to report bugs.");
  }  
  else if(error == 1)
    Serial.println("No controller found, check wiring, see readme.txt to enable debug. visit www.billporter.info for troubleshooting tips");

  else if(error == 2)
    Serial.println("Controller found but not accepting commands. see readme.txt to enable debug. Visit www.billporter.info for troubleshooting tips");

  else if(error == 3)
    Serial.println("Controller refusing to enter Pressures mode, may not support it. ");

  type = ps2x.readType(); 
  switch(type) {
    case 0:
      Serial.println("Unknown Controller type found ");
      break;
    case 1:
      Serial.println("DualShock Controller found ");
      break;
    case 2:
      Serial.println("GuitarHero Controller found ");
      break;
    case 3:
      Serial.println("Wireless Sony DualShock Controller found ");
      break;
   }
}

void loop() {
  /* You must Read Gamepad to get new values and set vibration values ps2x.read_gamepad(small motor on/off, larger motor strenght from 0-255) if you don't enable the rumble, use ps2x.read_gamepad(); with no values You should call this at least once a second */  
  if(error == 1){ //skip loop if no controller found
    resetFunc();
  }

  if(type == 2){ //Guitar Hero Controller
    ps2x.read_gamepad();          //read controller 

    if(ps2x.ButtonPressed(GREEN_FRET))
      Serial.println("Green Fret Pressed");
    if(ps2x.ButtonPressed(RED_FRET))
      Serial.println("Red Fret Pressed");
    if(ps2x.ButtonPressed(YELLOW_FRET))
      Serial.println("Yellow Fret Pressed");
    if(ps2x.ButtonPressed(BLUE_FRET))
      Serial.println("Blue Fret Pressed");
    if(ps2x.ButtonPressed(ORANGE_FRET))
      Serial.println("Orange Fret Pressed"); 

    if(ps2x.ButtonPressed(STAR_POWER))
      Serial.println("Star Power Command");

    if(ps2x.Button(UP_STRUM))          //will be TRUE as long as button is pressed
      Serial.println("Up Strum");
    if(ps2x.Button(DOWN_STRUM))
      Serial.println("DOWN Strum");

    if(ps2x.Button(PSB_START))         //will be TRUE as long as button is pressed
      Serial.println("Start is being held");
    if(ps2x.Button(PSB_SELECT))
      Serial.println("Select is being held");

    if(ps2x.Button(ORANGE_FRET)) {     // print stick value IF TRUE
      Serial.print("Wammy Bar Position:");
      Serial.println(ps2x.Analog(WHAMMY_BAR), DEC); 
    } 
  }
  else { //DualShock Controller
    ps2x.read_gamepad(false, vibrate); //read controller and set large motor to spin at 'vibrate' speed

    if(ps2x.Button(PSB_START))         //will be TRUE as long as button is pressed
      Serial.println("Start is being held");
    if(ps2x.Button(PSB_SELECT))
      Serial.println("Select is being held");      

    if(ps2x.Button(PSB_PAD_UP)) {      //will be TRUE as long as button is pressed
      Serial.print("Up held this hard: ");
      Serial.println(ps2x.Analog(PSAB_PAD_UP), DEC);
    }
    if(ps2x.Button(PSB_PAD_RIGHT)){
      Serial.print("Right held this hard: ");
      Serial.println(ps2x.Analog(PSAB_PAD_RIGHT), DEC);
    }
    if(ps2x.Button(PSB_PAD_LEFT)){
      Serial.print("LEFT held this hard: ");
      Serial.println(ps2x.Analog(PSAB_PAD_LEFT), DEC);
    }
    if(ps2x.Button(PSB_PAD_DOWN)){
      Serial.print("DOWN held this hard: ");
      Serial.println(ps2x.Analog(PSAB_PAD_DOWN), DEC);
    }   

    vibrate = ps2x.Analog(PSAB_CROSS);  //this will set the large motor vibrate speed based on how hard you press the blue (X) button
    if (ps2x.NewButtonState()) {        //will be TRUE if any button changes state (on to off, or off to on)
      if(ps2x.Button(PSB_L3))
        Serial.println("L3 pressed");
      if(ps2x.Button(PSB_R3))
        Serial.println("R3 pressed");
      if(ps2x.Button(PSB_L2))
        Serial.println("L2 pressed");
      if(ps2x.Button(PSB_R2))
        Serial.println("R2 pressed");
      if(ps2x.Button(PSB_TRIANGLE))
        Serial.println("Triangle pressed");        
    }

    if(ps2x.ButtonPressed(PSB_CIRCLE))               //will be TRUE if button was JUST pressed
      Serial.println("Circle just pressed");
    if(ps2x.NewButtonState(PSB_CROSS))               //will be TRUE if button was JUST pressed OR released
      Serial.println("X just changed");
    if(ps2x.ButtonReleased(PSB_SQUARE))              //will be TRUE if button was JUST released
      Serial.println("Square just released");     

    if(ps2x.Button(PSB_L1) || ps2x.Button(PSB_R1)) { //print stick values if either is TRUE
      Serial.print("Stick Values:");
      Serial.print(ps2x.Analog(PSS_LY), DEC); //Left stick, Y axis. Other options: LX, RY, RX 
      Serial.print(",");
      Serial.print(ps2x.Analog(PSS_LX), DEC); 
      Serial.print(",");
      Serial.print(ps2x.Analog(PSS_RY), DEC); 
      Serial.print(",");
      Serial.println(ps2x.Analog(PSS_RX), DEC); 
    }     
  }
  delay(50);  
}

在IDE中编译后下载到Arduino中，打开串口监视器，如果顺利，会看到显示下列提示：

如果提示未发现控制器，那就需要检查自己的连线等是不是有问题了，我在用的时候，因为杜邦线的问题，一直提示找不到控制器，我还怀疑是不是买的手柄有问题，又拿Stm32的板子来测试，折腾了半天竟然是线的问题。

连接后，按下手柄上的各个键都会有相应提示，可以看出哪个按键定义的什么名字。在上述代码中，左边的四个按键只是显示按键按下，不会根据力的大小输出相应数值的，如果想要，就需要修改下列代码：

上述程序第20行到23行将注释调换一下条改为：

#define pressures   true
//#define pressures   false
#define rumble      true
//#define rumble      false

这样就可以实现通过按左侧”上下左右“按键的力度，输出不同的模拟值。

2. 小车电机控制

电机：有刷直流电机驱动器：L298n逻辑控制器：Arduino Mega2560

程序功能实现： – 按下START键，开始前进； – 通过按PS2手柄左边的“上下左右”键实现前进、后退、左转、右转。 – 按SELECT键停止；

#include <PS2X_lib.h>  //for v1.6

/****************************************************************** * set pins connected to PS2 controller: * - 1e column: original * - 2e colmun: Stef? * replace pin numbers by the ones you use ******************************************************************/
//PS2手柄引脚；
#define PS2_DAT        13  //14 
#define PS2_CMD        11  //15
#define PS2_SEL        10  //16
#define PS2_CLK        12  //17

// 电机控制引脚；
#define IN1 4
#define IN2 5
#define IN3 6
#define IN4 7

 //PWM控制引脚；
  int speedPinA = 8;
  int speedPinB = 9;

int speed;

/****************************************************************** * select modes of PS2 controller: * - pressures = analog reading of push-butttons * - rumble = motor rumbling * uncomment 1 of the lines for each mode selection ******************************************************************/
#define pressures   true
//#define pressures false
#define rumble      true
//#define rumble false

PS2X ps2x; // create PS2 Controller Class

//right now, the library does NOT support hot pluggable controllers, meaning 
//you must always either restart your Arduino after you connect the controller, 
//or call config_gamepad(pins) again after connecting the controller.

int error = 0;
byte type = 0;
byte vibrate = 0;

 void setup(){

   pinMode(IN1, OUTPUT);
   pinMode(IN2, OUTPUT);
   pinMode(IN3, OUTPUT);
   pinMode(IN4, OUTPUT);

   speed =200;

   Serial.begin(57600);
   delay(300) ; //added delay to give wireless ps2 module some time to startup, before configuring it
   //CHANGES for v1.6 HERE!!! **************PAY ATTENTION*************

  //setup pins and settings: GamePad(clock, command, attention, data, Pressures?, Rumble?) check for error
  error = ps2x.config_gamepad(PS2_CLK, PS2_CMD, PS2_SEL, PS2_DAT, pressures, rumble);

  if(error == 0){
    Serial.print("Found Controller, configured successful ");
    Serial.print("pressures = ");
  if (pressures)
    Serial.println("true ");
  else
    Serial.println("false");
  Serial.print("rumble = ");
  if (rumble)
    Serial.println("true)");
  else
    Serial.println("false");
    Serial.println("Try out all the buttons, X will vibrate the controller, faster as you press harder;");
    Serial.println("holding L1 or R1 will print out the analog stick values.");
    Serial.println("Note: Go to www.billporter.info for updates and to report bugs.");
  }  
  else if(error == 1)
    Serial.println("No controller found, check wiring, see readme.txt to enable debug. visit www.billporter.info for troubleshooting tips");

  else if(error == 2)
    Serial.println("Controller found but not accepting commands. see readme.txt to enable debug. Visit www.billporter.info for troubleshooting tips");

  else if(error == 3)
    Serial.println("Controller refusing to enter Pressures mode, may not support it. ");

 // Serial.print(ps2x.Analog(1), HEX);

  type = ps2x.readType(); 
  switch(type) {
    case 0:
      Serial.print("Unknown Controller type found ");
      break;
    case 1:
      Serial.print("DualShock Controller found ");
      break;
    case 2:
      Serial.print("GuitarHero Controller found ");
      break;
  case 3:
      Serial.print("Wireless Sony DualShock Controller found ");
      break;
   }
}

 void turnLeft(){
   digitalWrite(IN1,HIGH);
   digitalWrite(IN2, LOW);
   digitalWrite(IN3, LOW);
   digitalWrite(IN4,HIGH);
}
 void turnRight(){
  digitalWrite(IN1, LOW);
  digitalWrite(IN2, LOW);
  digitalWrite(IN3, HIGH);
  digitalWrite(IN4, LOW);      
}

 void forward(){
  digitalWrite(IN1, HIGH);
  digitalWrite(IN2, LOW);
  digitalWrite(IN3, HIGH);
  digitalWrite(IN4, LOW);      
}

 void back(){
  digitalWrite(IN1, LOW);
  digitalWrite(IN2, HIGH);
  digitalWrite(IN3, LOW);
  digitalWrite(IN4, HIGH);     
}

 void loop(){
   /* You must Read Gamepad to get new values and set vibration values ps2x.read_gamepad(small motor on/off, larger motor strenght from 0-255) if you don't enable the rumble, use ps2x.read_gamepad(); with no values You should call this at least once a second */  
  if(error == 1) //skip loop if no controller found
    return; 

  if(type == 2) {
  
  //Guitar Hero Controller
  return;
  }
  else  { //DualShock Controller
    ps2x.read_gamepad(false, vibrate); //read controller and set large motor to spin at 'vibrate' speed


//start 开始运行，电机初PWM为120；
    if(ps2x.Button(PSB_START))  {
       Serial.println("Start is being held");
       speed = 120;
       analogWrite(speedPinA, speed);
       analogWrite(speedPinB, speed);
       forward();                  
    }
// 电机正转；
    if(ps2x.Button(PSB_PAD_UP)){
      Serial.println("Up held this hard: ");
      speed= 200;
      analogWrite(speedPinA, speed);
      analogWrite(speedPinB, speed);
      forward();                  
    }

// 电机反转；
    if(ps2x.Button(PSB_PAD_DOWN)){
      Serial.print("Down held this hard: ");
      speed= 200;
      analogWrite(speedPinA, speed);
      analogWrite(speedPinB, speed);
      back();                  
    }

 //左转； 
    if(ps2x.Button(PSB_PAD_LEFT)){
       Serial.println("turn left ");
       analogWrite(speedPinA, speed);
       analogWrite(speedPinB, 0);
      turnLeft();        
    }

//右转；
   if(ps2x.Button(PSB_PAD_RIGHT)){
    Serial.println("turn right");
    analogWrite(speedPinA, 0);
    analogWrite(speedPinB, speed);
    turnRight();
   }
// Stop
   if(ps2x.Button(PSB_SELECT)){
   Serial.println("stop");
   speed = 0;
   analogWrite(speedPinA,speed);
   analogWrite(speedPinB,speed);
   }

  }
}

目前是拿来尝试一下，还是基于按键的实现，后面用摇杆来控制方向的速度。

3. 摇杆控制

功能实现：

通过按PS2摇杆的“上下左右”移动实现前进、后退、左转、右转。
速度随摇杆位置变化而变化；

/* 功能：通过按PS2摇杆的“上下左右”移动实现前进 、后退、左转、右转。 * * 作者：lcl; */ #include <PS2X_lib.h> //for v1.6 /****************************************************************** * set pins connected to PS2 controller: * - 1e column: original * - 2e colmun: Stef? * replace pin numbers by the ones you use ******************************************************************/ //PS2手柄引脚； #define PS2_DAT  13 //14  #define PS2_CMD  11 //15 #define PS2_SEL  10 //16 #define PS2_CLK  12 //17 // 电机控制引脚； #define IN1 4 #define IN2 5 #define IN3 6 #define IN4 7 int speedPinA = 8; int speedPinB = 9; int speed; //speed =200; /****************************************************************** * select modes of PS2 controller: * - pressures = analog reading of push-butttons * - rumble = motor rumbling * uncomment 1 of the lines for each mode selection ******************************************************************/ #define pressures true //#define pressures false #define rumble true //#define rumble false PS2X ps2x; // create PS2 Controller Class //right now, the library does NOT support hot pluggable controllers, meaning //you must always either restart your Arduino after you connect the controller, //or call config_gamepad(pins) again after connecting the controller. int error = 0; byte type = 0; byte vibrate = 0; void setup(){ pinMode(IN1, OUTPUT); pinMode(IN2, OUTPUT); pinMode(IN3, OUTPUT); pinMode(IN4, OUTPUT); Serial.begin(57600); delay(300) ; //added delay to give wireless ps2 module some time to startup, before configuring it //CHANGES for v1.6 HERE!!! **************PAY ATTENTION************* //setup pins and settings: GamePad(clock, command, attention, data, Pressures?, Rumble?) check for error error = ps2x.config_gamepad(PS2_CLK, PS2_CMD, PS2_SEL, PS2_DAT, pressures, rumble); if(error == 0){ Serial.print("Found Controller, configured successful "); Serial.print("pressures = "); if (pressures) Serial.println("true "); else Serial.println("false"); Serial.print("rumble = "); if (rumble) Serial.println("true)"); else Serial.println("false"); Serial.println("Try out all the buttons, X will vibrate the controller, faster as you press harder;"); Serial.println("holding L1 or R1 will print out the analog stick values."); Serial.println("Note: Go to www.billporter.info for updates and to report bugs."); } else if(error == 1) Serial.println("No controller found, check wiring, see readme.txt to enable debug. visit www.billporter.info for troubleshooting tips"); else if(error == 2) Serial.println("Controller found but not accepting commands. see readme.txt to enable debug. Visit www.billporter.info for troubleshooting tips"); else if(error == 3) Serial.println("Controller refusing to enter Pressures mode, may not support it. "); // Serial.print(ps2x.Analog(1), HEX); type = ps2x.readType(); switch(type) { case 0: Serial.print("Unknown Controller type found "); break; case 1: Serial.print("DualShock Controller found "); break; case 2: Serial.print("GuitarHero Controller found "); break; case 3: Serial.print("Wireless Sony DualShock Controller found "); break; } } void turnLeft() //左转 { digitalWrite(IN1,HIGH); digitalWrite(IN2, LOW); digitalWrite(IN3, LOW); digitalWrite(IN4,LOW); delay(20); } void turnRight()//右转 { digitalWrite(IN1, LOW); digitalWrite(IN2, LOW); digitalWrite(IN3, HIGH); digitalWrite(IN4, LOW); delay(20); } void forward() // 前进 { digitalWrite(IN1, HIGH); digitalWrite(IN2, LOW); digitalWrite(IN3, HIGH); digitalWrite(IN4, LOW); delay(20); } void stop() // 停止； { digitalWrite(IN1, LOW); digitalWrite(IN2, LOW); digitalWrite(IN3, LOW); digitalWrite(IN4, LOW); delay(20); } void back() //后退 { digitalWrite(IN1, LOW); digitalWrite(IN2, HIGH); digitalWrite(IN3, LOW); digitalWrite(IN4, HIGH); } void loop(){ /* You must Read Gamepad to get new values and set vibration values ps2x.read_gamepad(small motor on/off, larger motor strenght from 0-255) if you don't enable the rumble, use ps2x.read_gamepad(); with no values You should call this at least once a second */ if(error == 1) //skip loop if no controller found return; if(type == 2) { 
   //Guitar Hero Controller return; } else { //DualShock Controller ps2x.read_gamepad(false, vibrate); //read controller and set large motor to spin at 'vibrate' speed if(ps2x.Button(PSB_L1) || ps2x.Button(PSB_R1)) { //print stick values if either is TRUE Serial.print("Stick Values:"); Serial.print(ps2x.Analog(PSS_LY), DEC); //Left stick, Y axis. Other options: LX, RY, RX Serial.print(","); Serial.print(ps2x.Analog(PSS_LX), DEC); Serial.print(","); Serial.print(ps2x.Analog(PSS_RY), DEC); Serial.print(","); Serial.println(ps2x.Analog(PSS_RX), DEC); int LY=ps2x.Analog(PSS_LY); int LX=ps2x.Analog(PSS_LX); int RY=ps2x.Analog(PSS_RY); int RX=ps2x.Analog(PSS_RX); if (LY<128) //前进 { speed = 2*(127-LY); //speed = LY; analogWrite(speedPinA, speed); analogWrite(speedPinB, speed); forward(); } //后退 if (LY>128) { speed=2*(LY-128); analogWrite(speedPinA, speed); analogWrite(speedPinB, speed); back(); } //左转 if (LX<128) { speed = 2*(127-LX); analogWrite(speedPinA, speed); analogWrite(speedPinB, speed); turnLeft(); } //右转 if (LX>128) { speed=2*(LX -128); analogWrite(speedPinA, speed); analogWrite(speedPinB, speed); turnRight(); } //如果摇杆居中 if (LY>=128 && LY<=128 && LX>=128 && LX<=128) { stop(); } } }

相关参考： 1. http://yfrobot.com/forum.php?mod=viewthread&tid=11561&highlight=ps2 2. Sony PS2游戏手柄遥控智能小车https://sanwen8.cn/p/375swwM.html 3. SONY PS2电玩手柄遥控乐高小车

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