BLE Microbot

Microbot.ino

#include <Servo.h> 
#include "GoBLE.h"
#include "Metro.h"

Metro servoMove(50);

Servo myservoLF;
Servo myservoLR;
Servo myservoRF;
Servo myservoRR;

int center = 82;
int minSpeed = 5;
int fullSpeed = 30;
int attached = 0;

int pinLED = 13;

GoBLE Goble(Serial);// init the bluetooth Serial port

int joystickX, joystickY;
int buttonState[7];

int speedL, speedR;


void attach() {
  attached = 1;
  myservoLF.attach(5);
  myservoLR.attach(2);
  myservoRF.attach(4);
  myservoRR.attach(3);
  digitalWrite(pinLED, HIGH);
}

void detach() {
  attached = 0;
  myservoLF.write(center);
  myservoLR.write(center);
  myservoRF.write(center);
  myservoRR.write(center);
  myservoLF.detach();
  myservoLR.detach();
  myservoRF.detach();
  myservoRR.detach();
  digitalWrite(pinLED, LOW);
}

void setup(){
  Goble.begin();// init Goble and default baudrate is 9600 bps!!! 
  Serial.begin(9600); // 115200 when powered by battery
  pinMode(pinLED, OUTPUT);
}

void loop (){
  if(Goble.available()){
    joystickX = Goble.readJoystickY() - 128;  
    joystickY = Goble.readJoystickX() - 128;

    buttonState[SWITCH_UP]     = Goble.readSwitchUp();
    buttonState[SWITCH_LEFT]   = Goble.readSwitchLeft();
    buttonState[SWITCH_RIGHT]  = Goble.readSwitchRight();
    buttonState[SWITCH_DOWN]   = Goble.readSwitchDown();
    buttonState[SWITCH_SELECT] = Goble.readSwitchSelect();
    buttonState[SWITCH_START]  = Goble.readSwitchStart();
    
    speedL = (joystickY + joystickX) / (255 / fullSpeed);
    speedR = (joystickY - joystickX) / (255 / fullSpeed); 
  }
  if (abs(speedL) < minSpeed) {
    speedL = 0;
  }
  if (abs(speedR) < minSpeed) {
    speedR = 0;
  }
  if (servoMove.check()) {
    if (speedL == 0 && speedR == 0) {
      if (attached) {
        detach();
      }
    } else {
      if (!attached) {
        attach();
      }
      myservoLF.write(center - speedL);
      myservoLR.write(center - speedL);
      myservoRF.write(center + speedR);
      myservoRR.write(center + speedR);
    }
  }
}

It shows me an error message...

'GoBLE' does not name a type

And this is the line underlined by red...

GoBLE Goble(Serial);// init the bluetooth Serial port