NXT was the second generation of LEGO Mindstorms, released in July 2006 to replace the RCX of 1998. At its centre is the NXT Intelligent Brick, a small computer that runs the robot and takes signals from touch, light, sound and ultrasonic sensors, with three servo motors that can count their own turns. Robots are programmed on a computer with NXT-G, a drag-and-drop language built on LabVIEW from National Instruments, and the brick can talk to a phone or computer over Bluetooth.
2009 LEGO Sets
2009 celebrated the 10th anniversary of LEGO Star Wars and the 50th anniversary of the LEGO brick. New themes included Space Police III, Power Miners, and a revival of Pirates, while Agents 2.0 continued the high-tech spy concept. LEGO Mindstorms NXT 2.0 refined its robotics platform with enhanced sensors and programmability. The year also saw the conclusion of the original Batman line, Exo-Force, Mars Mission, and Belville, as LEGO phased out older themes in favor of new directions.