adaptive-joystick-mouse-usb.ino

#include <TinyUSB_Mouse_and_Keyboard.h> // Include the TinyUSB_Mouse_and_Keyboard library

const int joystickXPin = A0; // Pin for the X-axis of the joystick
const int joystickYPin = A1; // Pin for the Y-axis of the joystick
const int joystickButtonPin = 2; // Pin for the joystick button

const int sensitivity = 5; // Sensitivity for mouse movements

int xValue = 0; // Value for the X-axis of the joystick
int yValue = 0; // Value for the Y-axis of the joystick
bool joystickButtonPressed = false; // State of the joystick button

void setup() {
  Keyboard.begin(); // Initialize the Keyboard library
  Mouse.begin();    // Initialize the Mouse library
  Serial.begin(115200); // Initialize the serial communication
  while (! Serial) delay(1); // Wait for the serial communication to be established

  pinMode(joystickXPin, INPUT); // Set the X-axis pin of the joystick as an input
  pinMode(joystickYPin, INPUT); // Set the Y-axis pin of the joystick as an input
  pinMode(joystickButtonPin, INPUT_PULLUP); // Set the joystick button pin as an input with a pull-up resistor
}

void loop() {
  xValue = analogRead(joystickXPin); // Read the analog value from the X-axis pin of the joystick
  yValue = analogRead(joystickYPin); // Read the analog value from the Y-axis pin of the joystick
  joystickButtonPressed = !digitalRead(joystickButtonPin); // Read the digital value from the joystick button pin

  int xMouse = map(xValue, 0, 1023, -sensitivity, sensitivity); // Map the X-axis value to the range of mouse movement from -sensitivity to +sensitivity
  int yMouse = map(yValue, 0, 1023, -sensitivity, sensitivity); // Map the Y-axis value to the range of mouse movement from -sensitivity to +sensitivity

  if (abs(xMouse) > sensitivity / 2 || abs(yMouse) > sensitivity / 2) {
    Mouse.move(xMouse, yMouse); // If the mapped values exceed half of the sensitivity, move the mouse by xMouse and yMouse
  }

  if (joystickButtonPressed) {
    Mouse.press(MOUSE_LEFT); // If the joystick button is pressed, press the left button of the mouse
  } else {
    Mouse.release(MOUSE_LEFT); // If the joystick button is not pressed, release the left button of the mouse
  }

  delay(10); // Add a small delay to avoid overwhelming the loop
}