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Learning C for Arduino

You're reading from   Learning C for Arduino A comprehensive guide that will help you ace C's fundamentals using the powerful Arduino board

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Product type Paperback
Published in Mar 2017
Publisher Packt
ISBN-13 9781787120099
Length 378 pages
Edition 1st Edition
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Author (1):
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Syed Omar Faruk Towaha Syed Omar Faruk Towaha
Author Profile Icon Syed Omar Faruk Towaha
Syed Omar Faruk Towaha
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Toc

Table of Contents (11) Chapters Close

Preface 1. Getting Started FREE CHAPTER 2. Our First Program! 3. Exploring C with Arduino IDE 4. Blinking with Operations and Loops 5. Functions and Files with Arduino 6. Arduino and C++ 7. Using Pointers and Structure 8. Working with Arduino Libraries 9. Lets Build Something Awesome 10. Few Error Handlings

Expression in C

Before we learn about logical operations, let's look at a few expressions in C programming. Suppose you need to identify the larger of two numbers (100 and 200). You will definitely say 200 is larger than 100, right? The question is, how did you get your answer? Yes, by comparing the numbers with each other. The condition is 100<200, or 200>100. The two symbols (< and >) are known as less than and greater than. Let's look at a few more expressions:

Expression

Meaning

x == y

x is equal to y.

x != y

x is not equal to y.

x < y

x is less than y.

x > y

x is greater than y.

x <= y

x is less than or equal to y.

x >= y

x is greater than or equal to y.

Tip

Remember, we use double equal signs (==), not a single equal sign (=) to indicate a data type is equal to another. The preceding expressions only work when we use logical conditions in C.

Logical operations in C

Sometimes, an event may depend on something. Say, if the weather is...

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