This article is one in a series of Instructables articles about DIY technology. The full list can be seen here.
Step 1: All about control
In 2006, Nintendo shook this up with its release of the Wii console. In addition to the buttons and joysticks, the controllers could also detect motion. So instead of button pushes for actions, gamers were mimicking what was happening on the screen. Swings of the controller became bowling, baseball, and even dancing. These intuitive controls enabled lots of non-gamers to play, even becoming popular with senior citizens, and pushed sales of the console past 70 million worldwide.
Two groups were paying close attention to the Wii: Microsoft and hackers. Microsoft saw the potential in freeing gamers from controllers and started the Kinect project, originally known as Project Natal. With the Kinect, a pair of cameras record video and depth and are able to combine the information to precisely see the player's body position. Now no controllers were needed at all and gamers could play just by moving around.
Meanwhile, hackers saw the Wii's controllers as wonderful tools that were dying to be put to use for things besides games, such as head-tracking, virtual whiteboards, and controlling a 15-ton robotic arm. One such hacker, Johnny Lee, made such cool use of the Wii that he was hired on by Microsoft for the Kinect.