What Is Mindstorms NXT? LEGO Mindstorms in only the way LEGO could do it. The NXT 1.0 and 2.0 kits come with a NXT block which is essentially a LEGO block programmable chip incorporated. This chip can be programmed to interact with the included servo motors and visual and audio sensors.

• Alpha Rex Program
• Lego Mindstorms Nxt 2.0

Once a project is built it can then be programmed via a programming interface on the Mindstorms' website. This beautifully designed graphic user interface is simple to learn and offers step-by-step guides to beginning and modifying the program process. The robot programming is downloaded directly to the NXT chip via a USB or Bluetooth connection.

Alpha Rex © 2006 LEGO Company. Alpha Rex © 2006 LEGO Company 00 Alpha Rex © 2006 LEGO Company. Alpha Rex 0 © 2006 LEGO. All five sample programs for the Alpha Rex humanoid robot. Walk: Simple walk test. Turn Around: Walks.

Prefabricated programs can also be downloaded for some of the project builds including the Alpha Rex humanoid robot. Where to Find Project Directions LEGO Mindstorms Projects Directly From LEGO LEGO doesn’t just put out a product and then leave their customers to their own devices.

Alpha Rex Program

With the Mindstorms project, LEGO has included downloadable programming for the robotic creations that can be concocted with any of its kits. The customer support section has both user created and official LEGO instructions as well as programming for NXT projects including the 8527 TriBot set.

The alternative instructions for this set include the classic clock, Alpha Rex, Music player, the T-56 claw machine, Spike (a scorpion-like robot), Soundbot and Tribot. User created instructions available for download include step-by-step materials for building seven other unique robots from. Each of these programmable robots can be programmed using the software interface at the. The interface is intuitive and comes with easy to follow guided instructions. Drop by the site to check out the latest user creations, videos, blogs, or other Mindstorms related materials.

NXT Programs LEGO Mindstorms Projects The offers free instructions for 66 projects for the NXT 1.0 and 24 projects for the NXT 2.0. These instructions are broken down into levels from beginner to advanced in both terms of construction and programming. The projects here could keep a future engineer building and rebuilding for countless weeks. Every single project on this site includes image based instructions with minimal text. There are explanatory notes when necessary but this is basically a set of visual guides. The programming aspects are also straight forward with lists of exactly where to find necessary files and how to transfer them to your NXT chip. Some of the best project kit instructions for the NXT 1.0 include the electric guitar, the line follower and the dog sled team.

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The NXT 2.0 has some equally interesting robots including the ball shooter and the forklift. Value of LEGO Mindstorms Projects The initial price of a may seem a bit daunting but considering it has a multitude of projects than can be built and the interactive programming component, it actually exceeds the value of most other robotic kits in the marketplace.

The different levels of project difficulty means this kit grows with the user giving just the right amount of challenge from step to step. The sheer number of LEGO Mindstorms projects and the fact that more are being added by dedicated community members all the time make this the ultimate value in the robot marketplace.

LEGO Mindstorms NXT 2.0 software After installing and running the software, this screen is displayed. The large pane in the center contains a guides to help you get started with the software. This will become the design area after creating a new program or opening an existing one. On the left are the controls grouped by function. The controls can be dragged into the design area.

On the right are the existing four projects grouped by category, which can be expanded by the downloadable ones. This area contains the build and the programming instructions. The larger left pane at the bottom is where the programming tiles are configured, and the smaller right pane shows some rollover help. There is also a Remote Control feature accessible from the menus at the top that allows control of a simple model, such as the Driving Base, via the arrow keys and space bar. Screenshot of LEGO Mindstorms NXT 2.0 software by Wally Bahny for TechRepublic.

Lego Mindstorms Nxt 2.0

LEGO Mindstorms NXT 2.0: Shooterbot, program phase three Finally, we program phase three. Each item below corresponds to a programming tile. We add an infinite loop - this will not stop until the dark gray button is pressed on the programming brick. We tell Mindstorms to turn the green light on. We tell motors C and B to spin forward a certain amount of time (in degrees, rotations, or seconds). We change the light to red.

Wait a half second. Spin the A motor, which is the firing mechanism. Turn the light to blue.

Spin motors C and B backward this time. Spin motors C and B in such a way that makes the model turn right. Screenshot of LEGO Mindstorms NXT 2.0 software by Wally Bahny for TechRepublic. LEGO Mindstorms NXT 2.0: Programming the Robogator This slide contains most of the programming for the Robogator. Here you can see two independent programming paths: one for the legs and one for the jaws. The legs are programmed to start in their 'normal position' by rotating until they find it, if necessary.

Then, the Robogator waits until an object is within a certain distance from its 'eyes.' Once it 'sees' an object, it lunges a couple of times and then 'runs,' alternating each leg.

The jaws are also programmed to detect a nearby object and then begin snapping, which will continue until the object moves away. Screenshot of LEGO Mindstorms NXT 2.0 software by Wally Bahny for TechRepublic. LEGO Mindstorms: Color Sorter code This is a large segment of the Color Sorter version 1 code. In this code, motor C (the one powering the holding area) is turned to make a ball fall under the Color sensor. Depending on the color, the bins are rotated (motor B) until the appropriate bin is underneath the output chute, at which time the ball is dropped. This is repeated indefinitely until the user presses the gray button.

Screenshot of LEGO Mindstorms NXT 2.0 software by Wally Bahny for TechRepublic. LEGO Mindstorms NXT 2.0: Alpha Rex code This is a very small segment of code that sets up Alpha Rex's movement and reactions. In this segment, you can see the two sound tiles separated by a 0.5 second wait tile. This is where it says 'Green Please' and then waits for a ball to be placed in its hands. Depending on the color, Alpha Rex will either drop the ball where he stands (red, yellow, or blue) or walk forward several steps before dropping the ball (green). Screenshot of LEGO Mindstorms NXT 2.0 software by Wally Bahny for TechRepublic.

LEGO Mindstorms NXT 2.0: Alpha Rex code This is a very small segment of code that sets up Alpha Rex's movement and reactions. In this segment, you can see the two sound tiles separated by a 0.5 second wait tile. This is where it says 'Green Please' and then waits for a ball to be placed in its hands. Depending on the color, Alpha Rex will either drop the ball where he stands (red, yellow, or blue) or walk forward several steps before dropping the ball (green). Screenshot of LEGO Mindstorms NXT 2.0 software by Wally Bahny for TechRepublic.