Evil Mouse Prank

Torture someone by intercepting their USB mouse communication and manipulating it in evil ways like inverting the axes or emulating an old sticky mechanical ball mouse!

See a video demonstration and explanation of the prank here: https://www.youtube.com/watch?v=XACMdu2bcdE

Copyright 2014 Tony DiCola (tony@tonydicola.com)

Usage

• This ONLY works on an Arduino Yun. The victim's mouse needs to be plugged in to the Yun's USB host port (tall vertical one), and the Yun's USB mini port plugged in to their computer. The Yun will intercept the mouse movements, manipulate them in nefarious ways, and send the mouse commands to the attached computer.

• This sketch requires some advanced modifications to the Yun. You will need to be comfortable logging in to the Yun's command shell and manipulating the Linux environment.

• You will need to make some modifications to your Yun to deal with a few software issues:

  • Out of the box the Yun doesn't work with USB HID devices because of a bug in OpenWRT. Follow the steps by sonnyyu in this thread to enable the /dev/input/event1 device: http://forum.arduino.cc/index.php?topic=207069.msg1641669#msg1641669

  • You MUST disable the Yun Bridge library completely so the Serial1 connection can be used exclusively by the sketch for communication. Unfortunately the Bridge library has serious performance problems and is not fast enough to send mouse events between the Yun's two processors. Follow this thread to comment the ttyATH0 line in /etc/inittab file: http://forum.arduino.cc/index.php?topic=191820.45

    When you are done with the prank, uncomment the modified line or else the Bridge library will be unusable in your own sketches!

• Install the PySerial library on the Yun's Linux processor. Follow this blog post to install PIP: http://codybonney.com/installing-pip-on-the-arduino-yun/

  Then run the command: pip install pyserial

• Copy both the EvilMouseYun.py and evdev.py files to an SD card that is mounted on the Yun (/mnt/sda1).

• Create the folder /mnt/sda1/arduino/www and copy in both index.html and send.py from the EvilMousePrank_WWW folder.

• Update the uhttpd web server configuration to support python CGI scripts. Edit /etc/config/uhttpd and add the line list interpreter ".py=/usr/bin/python" with the other interpretor defines. See this question for more details (you don't need to worry about setting up flask though): http://stackoverflow.com/questions/21791209/arduino-yun-uhttpd-flask-setup

• Update the /etc/rc.local file to add before the last line python /mnt/sda1/EvilMousePrank.py so the python script is run automatically after boot.

  If you don't want to always run this script, you can instead manually log in to the Yun and run that python script when you want to enable the prank (press Ctrl-C to quit the running script).

• Finally load the EvilMousePrank_Sketch Arduino sketch on the Yun.

• Reboot the Yun and wait 90 seconds for the sketch to start listening to mouse events. If you have the default name assigned to the Yun, access http://arduino.local/sd/ to see the web page for manipulating the mouse behavior. Replace arduino.local with the appropriate name for the Yun if you've changed it. On some systems like Windows or Android there might not be multicast DNS support, so try accessing http://<IP ADDRESS OF YUN>/sd/ to see the page.