You''ve likely come into contact with one of the many wondrous robots with an Arduino brain, but actually building one yourself? That's hard enough for adults, let alone young kids. BirdBrain Technologies, the brains behind the Hummingbird Arduino Kickstarter project (along with Carnegie Mellon University) feels the same way and has just launched the Hummingbird Duo, a robotics Kickstarter project for kids "10 to 110." It's designed to ease the robotics learning curve with two boards: the original Hummingbird kit to help younger kids start making projects, and a "Leonardo" board for when they've gathered some experience. You'll get the same building blocks like LEDs, vibration motors, servers and sensors from the original kit, along with an integrated motor/servo shield and improved connectors on the second board.