Mindstorms NXT

The NXT is part of the Mindstorms line of LEGO robots. It can be programed with the included NXT-G software, or with other program languages written for the NXT, for example NXC, NBC and NQC. It includes many gears and other parts, as well as sensors Motors.

Brain
The Intelligent Brick is the "Brain" of the NXT. This is a programmable microprocessor with 256 KB flash memory and 64 KB RAM memory. It can be connected to a computer running Windows or Mac OS via an USB port or Bluetooth. Bluetooth can also be used for connecting to mobile phones or other NXTs. Also, on the Intelligent Brick there are 3 output ports for connecting the motors and 4 input ports for connecting the sensors.

Motors and Sensors

 * Interactive Servo Motor: The NXT Motors have built-in Rotation Sensors. Three are included in the NXT kit.
 * Touch Sensor: The Touch Sensor is basically a button with an axle hole in the center. One is included in the NXT kit.
 * Sound Sensor: The Sound Sensor detects sound volume in decibels (DB). One is included in the NXT kit.
 * Ultrasonic Sensor: The Ultrasonic Sensor uses ultrasonic sound waves (similar to bat's sonar) to detect how far away objects are. One is included in the NXT kit.
 * Light Sensor: The Light Sensor detects light intensity. It can measure reflected light from a surface, or ambient light. One is included in the NXT kit.
 * Also, there are additional sensors which can be purchased from HiTechnic.