Use an arduino as a logitech wireless 🐭

We managed to make an Arduino act like a Logitech wireless mouse using a NRF24. This work is based on our retroengineering work done in December 2016 and January 2017 during our school project @Supelec.

This code makes the mouse move in circle on the screen.

#include "logitech-mouse.h"

logiMouse myMouse;

float mouseSpeed = 10.0f;
float degreesToRadians = 2.0f*3.14f/360.0f;

void setup() {
  Serial.begin(115200);

  Serial.println("Starting");

  myMouse.begin();

  Serial.println("Trying to reconnect");

  if(myMouse.reconnect())
      Serial.println("Reconnected using previous configuration !");
  else
  {
      Serial.println("Unable to reconnect to dongle... Pairing with any dongle...");
      myMouse.pair();
  }
    
  Serial.println("Ready :)");
}

void loop() {
  int x, y = 0;

  for(x = 0; x < 360; x+=5) {
    myMouse.move( (uint16_t)(mouseSpeed * cos( ((float)x) * degreesToRadians ) ),  
      (uint16_t)(mouseSpeed * sin( ((float)x) * degreesToRadians ) ));
      
    delay(10);
  }
}

The class we created is called logiMouse.

• bool begin() : inits NRF24 module for wireless communication
• bool pair() : pairs Arduino with Logitech dongle (don't forget to put the dongle into pairing mode using the unifying desktop app), returns false if pairing failed
• bool pair(uint8_t) : pairs with timeout (exits if pairing takes too much time)
• bool reconnect() : reconnects to previously connected dongle (exits if dongle is not found), returns true if success

• void move(uint16_t x_move, uint16_t y_move) : moves the mouse on the screen according to specified velocity (x,y)
• void move(uint16_t x_move, uint16_t y_move, bool leftClick, bool rightClick) : moves the mouse on the screen according to specified velocity (x,y), and click according to booleans
• void move(uint16_t x_move, uint16_t y_move, uint8_t scroll_v, uint8_t scroll_h) : moves and scrolls (see scrolls methods for more info)
• void move(uint16_t x_move, uint16_t y_move, uint8_t scroll_v, uint8_t scroll_h, bool leftClick, bool rightClick) : moves, scrolls and clicks (see related methods for more info)

• void scroll(uint8_t scroll_v, uint8_t scroll_h) : scrolls horizontally and vertically (scroll_v and scroll_h can be negative)
• void scroll(uint8_t scroll_v) : scrolls vertically (scroll_v can be negative)

• void click(bool leftClick, bool rightClick) : clicks according to booleans

The NRF24 lib included in this repo was written by Coliz [email protected], all rights reserved to him.

We are the author of both files : logitech-mouse.cpp and logitech-mouse.h