One of the biggest differences between microcontrollers and Single-Board Computers is that ... and run your complex DIY projects on an Arduino using nothing more than a Raspberry Pi, some ...

However, while the Uno is a helpful board for your beginner projects, it still has its limitations, so you can't just use it for every one of the Arduino DIY devices you plan on making.

In this three part video series we watch [Dirk Herrendoerfer] go from scraps to a nice 3D printed assembly as he iterates through the design of a pen plotter for making circuit boards.