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)

Echo

An echo application will read the text in from the Serial Monitor and will then output it back.

The text will be entered into the input field, as shown in the following screenshot:

And the text will be echoed, as shown in the following screenshot:

We will start off by creating a new sketch and add the following code to it:

byte bytesIn;
 
void setup() { 
  Serial.begin(9600);   
}
 
void loop() { 
  if (Serial.available()) { 
    bytesIn = Serial.read(); 
    Serial.write(bytesIn); 
  }
}

In this code, we start off by defining a variable named bytesIn of the byte type. Then within the setup() function the data rate for the serial data transmission is set to 9600 baud.

Within the loop() function we use the Serial.available() function to see if there is any data stored in the serial queue. The Serial.available() function returns the number of bytes available for reading...