Learn Audio Electronics with Arduino

Chapter 4

Digital systems 1 – Arduino output

In this chapter, we will learn about the Arduino microcontroller and how to program it. Until now, we have simply been using the Arduino as a 5V power source for our DC circuits, so the next two chapters (Digital Systems 1 and 2) will focus on how to use the Arduino as a microcontroller. We begin by returning to the system concepts introduced in chapter 2, as a means of separating analogue inputs and outputs from the digital processing and control performed by the Arduino. Over the next two chapters, we will learn how to use the Arduino to create actuator outputs, and how input from sensors can be used by the Arduino to execute processes.

To do this, we must learn the basics of computer programming, ...