Tronixstuff has a borderline insane tutorial series going, and as of now, 27 chapters have been published. It's essentially the Arduino Bible, but the two most recent additions in particular have ...

This requires a good understanding of both the Arduino programming language and the principles of robotics. In this tutorial, we will learn how to make a robotic hand.

More than 30 components have been added into the 123D Circuits simulator and 15 step-by-step tutorials are available via the Project Ignite learning platform.