When we have an idea, we take a pen and we sketch it down on a piece of paper. Imagine if we could build things that interact with the environment just as easily. This is where the Arduino platform comes into play.

Arduino is an open source family of electronic microprocessor boards that we can easily program to understand and interact with the environment. Over the years, Arduino has become the standard for building electronics projects. Arduino has been sent into space to run micro satellites; it has been sent to the bottom of the ocean to control small robotic submersibles; and now, Arduino has arrived for you. Let's explore the limitless world of Arduino.

If you want to go through the basics of electronics before starting with the book, you can refer to the Appendix, Electronics – the Basics.