Arduino is an open-source, programmable controller based on easy-to-use hardware and software. An Arduino is a small, inexpensive computer that can read inputs - such as a motion sensor, a button, or a Twitter message – and then analyze them and run an output - activate a motor, turn on an LED or publish something online. You tell your Arduino how to do this by writing a set of instructions - a program - using the Arduino programming language and the Arduino Software. The Arduino software is easy-to-use for beginners, yet flexible and powerful enough for advanced users. It runs on Mac, Windows, and Linux. Arduino has been used in thousands of different projects and applications. You can use an Arduino to build low cost scientific instruments, to prove chemistry and physics principles, to make a digital jukebox, to make your morning coffee, to run a robot, to control a digital art installation or to make a new musical instrument. Anyone - children, hobbyists, artists, programmers - can start tinkering by just following the step by step instructions of a kit or sharing ideas online with other members of the Arduino community. There are no prerequisites for this class, no prior programming experience is necessary.