Lego mindstorms robotics invention 2.0 used

Many high-tech toys start with a fun and fascinating idea only to make it frustratingly complicated in the execution. Leave it to LEGO to make a technologically advanced toy fun to play with. The enormous 718-piece LEGO Mindstorms Robotic Invention System lets you construct a variety of moving robot vehicles and then program them from your Windows 98- or Windows Me-compatible computer. The robots are all based around a bright yellow basic unit, which serves as the functional heart of whatever is being built. The brick receives commands from the computer via an infrared tower unit. The computer interface is incredibly user-friendly and intuitive. What's most impressive about the system, however, is the variety of robots that can be built. There are detailed instructions for each one, and since these are LEGOs, builders are free to come up with an endless variety. --John Moe

Build and program your own LEGO Robots! Contains everything you need to create thousands of robotic inventions. The key to this awesome new invention system is the revolutionary LEGO RCX, a programmable microcomputer that acts as the brain of your robotic inventions. Using your PC and the RCX, you can control the behavior of an infinite number of robotic inventions--from a light-sensitive intruder alarm to an undercover robot that can follow a trail, move around obstacles, even duck into dark corners. The set includes an RCX microcomputer; CD-ROM software; 717 LEGO pieces, including two motors, two touch sensors, and one light sensor; a Constuctopedia; 12 guided challenges, and an infrared transmitter. A PC, monitor, one 9-volt battery, and six AA batteries are required, but not included.