Many thanks to all those at McGraw-Hill Education who have done such a great job in producing this book. In particular, thanks to my editor Lara Zoble and to Patricia Wallenburg, Elizabeth Houde, Lynn Messina, Stephen Smith, and Claire Splan.
Thanks to Duncan Amos for his diligent technical review. This book is greatly improved by his keen eye for detail and unerring ability to sniff out waffle and vagueness.
I would also like to thank Adafruit, SparkFun, and CPC for supplying many of the modules and components used in the preparation of this book.
And last but not least, thanks once again to Linda, for her patience and generosity in giving me space to do this.