We all love Arduino. This open-source microcontroller is incredibly successful, mainly thanks to the fact that it is powerful, very simple to program, and has allowed the community to develop derivatives and accessories.
Recently, there has been a new addition to the Arduino family: the Arduino Leonardo. This new board differs a bit from its predecessors since it uses only one microcontroller (no second serial interface chip is needed), features more analogue and PWM pins, and is less expensive than the regular Arduino Uno. Enough chit-chat though, who better to present this new microcontroller than one of the Arduino founders, Massimo Banzi: