The Arduino is growing in popularity. As a fast, low-cost, open source platform with an active development community, it is quickly surpassing the Basic Stamp as the platform of choice for physical computing enthusiasts. This book includes a broad range of intermediate to advanced projects specifically for the Arduino using the easy-to-learn Arduino language (based on the Processing programming language). Other works currently on the market target the beginner to intermediate levels, and may cover other boards rather than the Arduino.