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Creating Cool
MINDSTORMS ®
NXT Robots
Daniele Benedettelli
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Creating Cool MINDSTORMS ® NXT Robots
Copyright © 2008 by Daniele Benedettelli
All rights reserved. No part of this work may be reproduced or transmitted in any form or by any means,
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ISBN-13 (pbk): 978-1-59059-966-2
ISBN-10 (pbk): 1-59059-966-7
ISBN-13 (electronic): 978-1-4302-0599-9
ISBN-10 (electronic): 1-4302-0599-7
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To my brother Alessandro
Contents at a Glance
About the Author . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
About the Technical Reviewer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii
Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxvii
PART 1 ■ ■ ■ Look, Mom! No Wheels!
Building Biped Robots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
CHAPTER 2
Quasimodo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
CHAPTER 3
Finite State Machines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
CHAPTER 4
NXT AT-ST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
CHAPTER 5
Omni-Biped . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
CHAPTER 6
NXT Turtle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
PART 2 ■ ■ ■ Back on Wheels
Mine Sweeper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281
CHAPTER 8
JohnNXT Is Alive! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 347
CHAPTER 9
Need Input! Building a Remote Control Device . . . . . . . . . . . . . . . . . 517
APPENDIX
Introduction to BricxCC and NXC Programming . . . . . . . . . . . . . . . . 567
INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 579
v
CHAPTER 1
CHAPTER 7
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