This book was written by Michael Margolis with Nick Weldin to help you explore the
amazing things you can do with Arduino.
Arduino is a family of microcontrollers (tiny computers) and a software creation envi-
ronment that makes it easy for you to create programs (called sketches) that can interact
with the physical world. Things you make with Arduino can sense and respond to
touch, sound, position, heat, and light. This type of technology, often referred to as
physical computing, is used in all kinds of things, from the iPhone to automobile elec-
tronics systems. Arduino makes it possible for anyone—even people with no program-
ming or electronics experience—to use this rich and complex technology.
