Arduino - Joystick controlling 2 Servos using the X-Axis and Y-Axis

arduino-joystick-servo.ino

#include <Servo.h>

/*
Wiring Guides

  Servos
  http://www.instructables.com/id/Arduino-Servo-Motors/?ALLSTEPS
    Check the Rotation of each servo in degrees. Search for your model number on servodatabase.com
    eg. http://www.servodatabase.com/servo/futaba/s3003
    0-60 degrees

  Joystick
  https://brainy-bits.com/blogs/tutorials/arduino-joystick-tutorial

*/

// Arduino pin numbers
const int SW_pin = 2; // digital pin connected to switch output
const int X_pin = 0; // analog pin connected to X output
const int Y_pin = 1; // analog pin connected to Y output

// define 2 servos.
Servo servo;
Servo servoB;

const int PIN_BUTTON = 6;
const int PIN_SERVO = 9;

const int PIN_SERVO_B = 10;

// default servo position for each.
int position = 1500;

int prevButtonState = HIGH;
int currentButtonState = HIGH;

int getXaxis() {
  Serial.print(digitalRead(SW_pin));
  Serial.print("\n");
  Serial.print("X-axis: ");
  Serial.print(analogRead(X_pin));
  return analogRead(X_pin);
}  
int getYaxis() {
  Serial.print(digitalRead(SW_pin));
  Serial.print("\n");
  Serial.print("Y-axis: ");
  Serial.print(analogRead(Y_pin));
  return analogRead(Y_pin);
}

void setup() {
  //button - not used ATM
  pinMode(PIN_BUTTON, INPUT_PULLUP);

  //joystick setup
  pinMode(SW_pin, INPUT); //2
  digitalWrite(SW_pin, HIGH); // sets value to 1
  Serial.begin(9600);

  //servo setup
  servo.attach(PIN_SERVO);
  servo.writeMicroseconds(position);

  servoB.attach(PIN_SERVO_B);
  servoB.writeMicroseconds(position);

}

int xPos = -1;
int yPos = -1;

void loop() {
  xPos = getXaxis ();
  yPos = getYaxis ();

//0 - 60 degrees
int servoPosition = xPos / 17; // divide joystick reading (0-1023) by 17 to convert max of 1023 to max of 60 degrees for servo.
int servoPositionB = yPos / 17;
servo.write(servoPosition);
servoB.write(servoPositionB);

// Testing the servo by hardcoding values
//servo.write(0); //0 degrees
//  delay(1000);
//servo.write(30); //30 degrees
//  delay(1000);
//servo.write(60); //60 degrees
//  delay(1000);
//  servo.writeMicroseconds(xPos);
  
  delay(100);
}