ARDUINO ROBOT BONANZA
ABOUT THE AUTHOR
Gordon McComb has written 65 books and thousands of magazine articlesover a million copies of his books are in print, in more than a dozen languages. For 13 years, Gordon wrote a weekly syndicated newspaper column on computers and high technology, which reached several million readers worldwide. Hes a regular contributor to SERVO Magazine and other publications, and maintains an active Web site dedicated to teaching the art of science of robot building. He is the author of the best-selling Robot Builders Bonanza , now in its fourth edition.
ARDUINO ROBOT BONANZA
GORDON McCOMB
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For my mother,
Edna Kathryn Lane Forbes
19202012
CONTENTS
ACKNOWLEDGMENTS
Special thanks go to Ken Gracey, Matt Gilliland, Jim Carey, and my many friends at Parallax; to Jim Frye of Lynxmotion; to Nathan Seidle, Pete Dokter, and Robert Cowan of SparkFun; to Gerry Coe of Devantech; to Russell Cameron, Claudia, and the crew at DAGU; to Roger Stewart and the editors at McGraw-Hill Education; and to my agent Matt Wagner.
And as always, to my wife Jennifer.
INTRODUCTION
THIS IS YOUR ROBOT WITH AN ARDUINO BRAIN
When I first started building robots, the microprocessor had not yet been invented. Robot brains were limited to hand-wired boards filled with gompy resistors, super-expensive transistors, and maybe even a relay or two.
Today we have microcontrollers , wonderful micro-miniaturized wonders that combine a computer with the ability to directly connect to lights, alarms, motors, solenoids, sensors, and other physical things. In fact, this whole concept now goes by the catchphrase physical computing . I mention this because physical computing plays directly into building robots. Thats why microcontrollers like the Arduino are so important in robotics.