Book Image

Mastering Arduino

By : Jon Hoffman
Book Image

Mastering Arduino

By: Jon Hoffman

Overview of this book

Mastering Arduino is an all-in-one guide to getting the most out of your Arduino. This practical, no-nonsense guide teaches you all of the electronics and programming skills that you need to create advanced Arduino projects. This book is packed full of real-world projects for you to practice on, bringing all of the knowledge in the book together and giving you the skills to build your own robot from the examples in this book. The final two chapters discuss wireless technologies and how they can be used in your projects. The book begins with the basics of electronics, making sure that you understand components, circuits, and prototyping before moving on. It then performs the same function for code, getting you into the Arduino IDE and showing you how to connect the Arduino to a computer and run simple projects on your Arduino. Once the basics are out of the way, the next 10 chapters of the book focus on small projects centered around particular components, such as LCD displays, stepper motors, or voice synthesizers. Each of these chapters will get you familiar with the technology involved, how to build with it, how to program it, and how it can be used in your own projects.
Table of Contents (23 chapters)

Code

Both the Arduino IDE and Web Editor come with a servo library that we can use simply by including the header file. The following code will do this:

#include <Servo.h>

Next, we need to define the pin that the servo motor and the potentiometer are connected to. The following code will connect the signal wire to the digital 3 pin and the potentiometer to the analog 0 pin on the Arduino:

#define SERVO0_POT 0
#define SERVO0_OUT 3 

Now we need to define an instance of the Servo type as shown in the following line:

Servo servo0;

Within the setup function, we need to call the attach() method from the servo instance to initialize the instance and to tell it what pin the servo is attached to. The following code shows this:

void setup() {
  servo0.attach(SERVO0_OUT);
}

We will want to define a function that will read the potentiometer and set the position of the servo position...