Qwiic_Joystick_HID_Keyboard_Test.ino

/*
  This is a example written for the SparkFun Qwiic Joystick
  SparkFun sells these at its website: www.sparkfun.com
  Do you like this library? Help support SparkFun. Buy a board!
  https://www.sparkfun.com/products/15168

  Written by Wes Furuya @ SparkFun Electronics, February 5th, 2019

  The Qwiic Joystick is a I2C controlled analog joystick

  Example 1- Basic Readings:
  This program uses the Qwiic Joystick Arduino Library to read the current
  joystick position and button state, which is then printed out in the Serial
  Monitor.

  https://github.com/sparkfun/SparkFun_Qwiic_Joystick_Arduino_Library/examples

  Development environment specifics:
  Arduino IDE 1.8.5

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#include <Mouse.h>
#include <Keyboard.h>

#include <Wire.h>
#include "SparkFun_Qwiic_Joystick_Arduino_Library.h" //Click here to get the library: http://librarymanager/All#SparkFun_joystick
JOYSTICK joystick; //Create instance of this object

int vertZero, horzZero;  // Stores the initial value of each axis, usually around 512
int vertValue, horzValue;  // Stores current analog output of each axis
const int sensitivity = 200;  // Higher sensitivity value = slower mouse, should be <= about 500
int mouseClickFlag = 0;

void setup() {
  //Serial.begin(9600);
  //Serial.println("Modified Qwiic Joystick Example 1 using HID");

  if (joystick.begin() == false)
  {
    Serial.println("Joystick does not appear to be connected. Please check wiring. Freezing...");
    while (1);
  }

  delay(1000);  // short delay to let outputs settle
  vertZero = joystick.getVertical();  // get the initial values
  horzZero = joystick.getHorizontal();  // Joystick should be in neutral position when reading these
}

void loop() {
  //Serial.print("X: ");
  //Serial.print(joystick.getHorizontal());

  //Serial.print(" Y: ");
  //Serial.print(joystick.getVertical());

  //Serial.print(" Button: ");
  //Serial.println(joystick.getButton());

  vertValue = joystick.getVertical() - vertZero; // read vertical offset
  horzValue = joystick.getHorizontal() - horzZero;  // read horizontal offset

  if (vertValue != 0)
    Mouse.move(0, vertValue / sensitivity, 0); // move mouse on y axis
  if (horzValue != 0)
    Mouse.move(horzValue / sensitivity, 0, 0); // move mouse on x axis

  if ((joystick.getButton() == 0) && (!mouseClickFlag))  // if the joystick button is pressed
  {
    //mouseClickFlag = 1;
    //Mouse.press(MOUSE_LEFT);  // click the left button down
    Keyboard.write('z');
    
  }
  else if ((joystick.getButton()) && (mouseClickFlag)) // if the joystick button is not pressed
  {
    //mouseClickFlag = 0;
    //Mouse.release(MOUSE_LEFT);  // release the left button
  }

  //delay(200);
}