Book Image

Learning C for Arduino

By : Syed Omar Faruk Towaha
Book Image

Learning C for Arduino

By: Syed Omar Faruk Towaha

Overview of this book

This book will start with the fundamentals of C programming and programming topics, such data types, functions, decision making, program loops, pointers, and structures, with the help of an Arduino board. Then you will get acquainted with Arduino interactions with sensors, LEDs, and autonomous systems and setting up the Arduino environment. Moving on you will also learn how to work on the digital and analog I/O, establish serial communications with autonomous systems, and integrate with electronic devices. By the end of the book, you will be able to make basic projects such as LED cube and smart weather system that leverages C.
Table of Contents (17 chapters)
Learning C for Arduino
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Things to remember


The following sections cover some things you need to remember.

Watch your case

C is case sensitive. So, we need to take care about what we type, or our code won't compile. For example, loop() and Loop() are not the same thing in C. We cannot use serial.print("Hello Arduino!"); instead of Serial.print("Hello Arduino!");.

Don't forget your semicolon!

Now look at the following code. Can you tell where it went wrong?

void setup() {
 Serial.begin(9600)
 Serial.println("Arduino is fun");
}
void loop() {
}

Exactly! On the second line, we missed a semicolon. Let's see if our Arduino IDE can detect the error. We wrote the code in the editor of our Arduino IDE and clicked the verify button (), and found the following result:

From this screen, we can see that our Arduino IDE could detect the error. The log (the black portion of the Arduino IDE) shows where the error occurred. The log says,  expected ';' before 'Serial' , which means we missed a semicolon before Serial.println("Arduino...