Arduino is really two things: an open-source prototyping platform and a software package that makes accessing microcontrollers far more accessible to people like you and me. The quintessential Arduino is the Arduino Uno, featured in the image below. This device is brilliant if you're interested in quickly jumping into the world of electronics and control. Ever wanted to build a robot? Or work on a home automation project? This is the device for you. If you're interested in learning programming and interacting with the physical world using Arduino, check out my video tutorials. I am working on releasing several video tutorials that range from getting you started with your first sketch all the way to understanding how to read datasheets for devices you would connect to the Arduino. These tutorials will enable you to accomplish anything you want with an Arduino.