The Lego Mindstorms NXT has been in the market since 2006 and its potential for robotics application is increasing throughout the years. The Lego Mindstorms NXT educational kit consists of several types of sensors and motors, allowing the robot to be programmed to respond autonomously to different types of situations.The traditional four-directional analog controller allows motion but is restricted by only the four direction keys. The Nintendo Wii remote, which is otherwise known as the ‘Wiimote’, expands on the traditional controller by embedding an accelerometer and Infrared (IR) sensors. The accelerometer allows motion capture of the Wiimote along the XYZ axis as well as detecting the roll, yaw and pitch. Combined with the IR sensors, it allows very accurate motion tracking. With the motion tracking capability on top of the traditional controller capabilities, integrating the Wiimote to a robotics kit will allow the robot to be controlled with more finesse.
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