Build a Robot

SCRATCH IS THE PI’S key learner language. You can build complex programs by dragging and dropping elements of code, and filling in the odd variable here and there. But don’t take that to mean it’s simplistic. You can also use Scratch (or Python, or C) with a hardware control board, such as the Laika Explorer ($47), to interface with motors, servos, and sensors, turning your Pi into a fullfeatured robot. Laika’s programing library is packed with all the functions you need to prototype a ’bot, so all you need to worry about is supplying the power. If you plan to give your creation wheels, we recommend an external battery pack. http://project-laika.com http://projec