Make: Robotic Arms

7Chapter 1: The Foundation of Robotic Arms

Before we talk about inputs, however, we’ll need a little more vocab. We first

must define the difference between digital and analog capabilities. As you

might imagine, our digital pins are designed to work with digital signals. The

easiest way to discuss the basics of digital signals is to talk about binary.

Binary code, nothing but 1s and 0s, is at the very core of just about every

computing device on the planet. No matter what programming language

we use, before the code we write is run on a computer’s processor, it gets

converted into binary before it is processed.

This is true for things as simple ...