You might be wondering what is a button box. It is a simple device consisting of four

light touch switches, which can be used as input for a computer. The switches sit under each finger so they can be pushed with the tiniest effort and without moving your arm. Perfect for someone a physical disability such as muscular dystrophy.

An Arduino Leonardo is used to input the button presses to the computer, meaning each button can be programmed to do whatever you like. From keystrokes to mouse commands and joystick commands.

The button box is on instructables.com as well. For detailed instructions go to http://www.instructables.com/id/Button-box-for-Disabled-unfinished-/