You are previewing Make: Lego and Arduino Projects.

Make: Lego and Arduino Projects

Cover of Make: Lego and Arduino Projects by John Baichtal... Published by O'Reilly Media, Inc.
  1. Special Upgrade Offer
  2. A Note Regarding Supplemental Files
  3. Foreword
  4. Preface
    1. Assumptions This Book Makes
    2. Contents of This Book
    3. Conventions Used in This Book
      1. Lego CAD Conventions
    4. Using Code Examples
    5. Safari® Books Online
    6. How to Contact Us
    7. Acknowledgments for John
    8. Acknowledgments for Matthew
    9. Acknowledgments for Adam
  5. 1. Project: Drawbot
    1. Parts List
      1. Tools & Electronics
      2. Lego Elements
    2. Assembly Instructions
      1. Build the Lego Model
      2. Attach the Arduino and Bricktronics Shield
      3. Attach the Pen
    3. Program the Robot
      1. Processing and Arduino
      2. Setting Up the Programming Environment
      3. Don’t Forget Your Libraries!
      4. The Arduino Sketch
    4. The Next Chapter
  6. 2. Anatomy of Lego Robotics
    1. Mindstorms
      1. The NXT Brick
      2. Sensors
      3. Motors
      4. Wires
      5. Technic Beams, Mechanics & Connectors
    2. Expanding on the Mindstorms Set
      1. Buying More
      2. Add-On Electronics
      3. Third-Party Bricks
      4. Non-Mindstorms Lego Bricks
      5. Power Functions
    3. Programming Your Brick
    4. The Next Chapter
  7. 3. Arduino Interlude
    1. History of the Arduino Project
    2. What Is OSHW?
    3. Anatomy of the Uno
    4. The Arduino Ecosystem
      1. Uno Alternatives
      2. Older Models
      3. Shields
    5. Arduino Resources
      1. Books
      2. Websites
      3. Code
    6. The Next Chapter
  8. 4. Project: Clock
    1. Parts List
      1. Tools & Electronics
      2. Lego Elements
    2. Assembly Instructions
      1. Prepare the Gear
      2. Build the Lego Model
      3. Install the Arduino
    3. Program the Robot
    4. Setting the Clock
    5. The Next Chapter
  9. 5. Project: Chocolate Milk Maker
    1. Parts List
      1. Tools & Electronics
      2. Beverage Handling
      3. Food
      4. Lego Elements
    2. Assembly Instructions
      1. Build the Pump Assembly
      2. Build the Lego Model
      3. Attach the Syrup Bottle
      4. Build the Mixing Attachment
      5. Wire up and Install the Electronics
    3. Program the Robot
    4. The Next Chapter
  10. 6. Basic Electronic Theory
    1. Basic Concepts in Electricity
      1. Voltage, Current & Resistance
      2. Ohm’s Law
      3. Other Concepts
    2. Know Your Electronic Components
      1. Resistors
      2. Capacitors
      3. Diodes and LEDs
      4. Inductors
      5. Transistors
      6. Integrated Circuits
    3. Sensors 101
      1. Digital Sensors
      2. Analog Sensors
    4. Further Study
  11. 7. Gripperbot
    1. Parts List
      1. Electronics Parts
      2. Lego Elements
    2. Building Instructions
      1. Bracers
      2. Gripperbot
    3. Assembling the Gripperbot’s Electronics
    4. Programming the Gripperbot
    5. The Next Chapter
  12. 8. Project: Keytar
    1. Parts List
      1. Tools & Electronics
      2. Lego Elements
    2. Assembly Instructions
      1. Build the Lego Model
      2. Install the Electronics
    3. Program the Keytar
    4. Play Some Music!
    5. The Next Chapter
  13. 9. Project: Lamp
    1. Parts List
      1. Tools & Electronics
      2. Lego Elements
    2. Assembly Instructions
      1. Build the Lego Model
      2. Install the Electronics
      3. Download and Install the App
    3. Program the Lamp
    4. The Next Chapter
  14. 10. Advanced Techniques
    1. Wiring Up Bricktronics Equivalents
    2. Mounting PCBs to Legos
    3. Adding Molex Connectors to Lego Wires
    4. All About Motors
      1. DC Brushed Motors
      2. Stepper Motors
      3. Hobby Servo Motors
    5. Powering Your Robot
      1. DC Power Jack
      2. USB Connector
      3. Batteries
      4. Battery Dos and Don’ts
    6. NXT to Arduino Communication
    7. XBee Wireless Modules
    8. Epilogue
  15. Index
  16. About the Authors
  17. Colophon
  18. Special Upgrade Offer
  19. Copyright
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Chapter 2. Anatomy of Lego Robotics

IN THIS CHAPTER

Mindstorms

Expanding on the Mindstorms Set

Programming Your Brick

The Next Chapter

Before we delve any deeper into the specifics of how Arduinos interact with Mindstorms, let’s check out the particulars of Lego’s robotics technology.

While the Lego Group has produced many robotics sets over the years, their Mindstorms NXT 2.0 product represents their biggest, most popular, and most sophisticated offering to date, and so we’re focusing on that set in this book.

It’s really amazing what has been done with Mindstorms, with creations ranging from knitting machines to constructs that can sort bricks by color and shape to recreations of legendary computing engines from the 19th century. Even so, when you consider that it’s a construction set coupled with a full-fledged robotic prototyping system, you begin to understand why it’s so popular.

Hans Andersson’s Time Twister shows the potential of Lego robotics. Credit: Hans Andersson
Figure 2-1. Hans Andersson’s Time Twister shows the potential of Lego robotics. Credit: Hans Andersson

Hans Andersson’s Time Twister clock (http://tiltedtwister.com/robots.html, Figure 2-1) serves to demonstrate the capabilities of this robust system. Using only two NXT bricks and five motors, Andersson controls a series of interlocked layers that can be twisted to create the digits of a clock. It’s a virtuoso robot with an elegant design that maximizes capabilities with a bare minimum of resources.

So, what’s ...

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