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Under no circumstances shall McGraw- Hill and/or its licensors be liable for any indirect, incidental, special, punitive, consequential or similar damages that result from the use of or inability to use the work, even if any of them has been advised of the possibility of such damages. This limitation of liability shall apply to any claim or cause whatsoever whether such claim or cause arises in contract, tort or otherwise. To my boys, Stephen and Matthew, from a very proud Dad. About the Author Simon Monk has a bachelor’s degree in cybernetics and computer science and a doctorate in software engineering. He has been an active electronics hobbyist since his school days and is an occasional author in hobby electronics magazines. He is also author of 30 Arduino Projects for the Evil Genius and 15 Dangerously Mad Projects for the Evil Genius. CONTENTS Acknowledgments Introduction 1 This Is Arduino Microcontrollers Development Boards A Tour of an Arduino Board Power Supply Power Connections Analog Inputs Digital Connections Microcontroller Other Components The Origins of Arduino The Arduino Family Uno, Duemilanove, and Diecimila Mega Nano Bluetooth Lilypad Other “Official” Boards Arduino Clones and Variants Conclusion 2 Getting Started Powering Up Installing the Software Uploading Your First Sketch The Arduino Application Conclusion 3 C Language Basics Programming What Is a Programming Language? Blink—Again! Variables Experiments in C Numeric Variables and Arithmetic Commands if for while The #define Directive Conclusion 4 Functions What Is a Function? Parameters Global, Local, and Static Variables Return Values Other Variable Types floats boolean Other Data Types Coding Style Indentation Opening Braces Whitespace Comments Conclusion 5 Arrays and Strings Arrays Morse Code SOS Using Arrays String Arrays String Literals