However, in an electronic and digital world, what good is a D-printed body with no brains?
You can buy Arduino kits that come with parts familiar to those kits: resistors, LED lights, and breadboards.
They are the logical evolution of those electronics kits we had as kids from Radio Shack.
However, Arduino kits go much further than those old Radio Shack kits.
These usually include programmable controller boards.
You can write code and upload it via your USB port.