Make your own Arduino

The wonders of the Arduino and its great versatility as a tool. Its definition by its creators and the official definition:

Arduino is an open electronics prototyping platform based on flexible, easy-to-use software and hardware. It was created for artists, designers, hobbyists and anyone interested in creating interactive environments or objects.

We know that Arduino is open-hardware, that is to say, that its plans and components are open and free so that anyone can make it. As a good example of this we have this kid, Jad Berro, who has made his own and shows us some images of it:

Homemade Arduino