Arduino is now offering a fully-assembled robot, designed as a base platform for electronics tinkerers' DIY robotics projects. Its hardware and software are open-source, and designed to be hacked.

An Arduino Nano is the heart of the build, paired with a shield that lets it run a number of servo motors. The servos, one per key, are each assembled into a 3D-printed bracket with a cam-driven ...

Learning to build a robot arm will teach you how to breadboard a circuit, how to program your Arduino, and how to work with moving parts.