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C Programming for Arduino

C Programming for Arduino

By : Julien Bayle
2.8 (11)
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C Programming for Arduino

C Programming for Arduino

2.8 (11)
By: Julien Bayle

Overview of this book

Physical computing allows us to build interactive physical systems by using software & hardware in order to sense and respond to the real world. C Programming for Arduino will show you how to harness powerful capabilities like sensing, feedbacks, programming and even wiring and developing your own autonomous systems. C Programming for Arduino contains everything you need to directly start wiring and coding your own electronic project. You'll learn C and how to code several types of firmware for your Arduino, and then move on to design small typical systems to understand how handling buttons, leds, LCD, network modules and much more. After running through C/C++ for the Arduino, you'll learn how to control your software by using real buttons and distance sensors and even discover how you can use your Arduino with the Processing framework so that they work in unison. Advanced coverage includes using Wi-Fi networks and batteries to make your Arduino-based hardware more mobile and flexible without wires. If you want to learn how to build your own electronic devices with powerful open-source technology, then this book is for you.
Table of Contents (21 chapters)
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C Programming for Arduino
Credits
About the Author
Acknowledgement
About the Reviewers
www.PacktPub.com
Preface
1
Index

Comparing values and Boolean operators


We now know how to store entities into variables, convert values, and choose the right conversion method. We are now going to learn how to compare variable values.

Comparison expressions

There are six comparison operators:

  • == (equal)

  • != (not equal)

  • < (less than)

  • > (greater than)

  • <= (less than or equal to)

  • >= (greater than or equal to)

The following is a comparison expression in code:

int myInt1 = 4;
float myFloat = 5.76;
(myInt1 > myFloat) ;

An expression like that does nothing, but it is legal. Comparing two elements produces a result and in this small example, it isn't used to trigger or make anything. myInt1 > myFloat is a comparison expression. The result is, obviously, true or false, I mean it is a boolean value. Here it is false because 4 is not greater than 5.76. We can also combine comparison expressions together to create more complex expressions.

Combining comparisons with Boolean operators

There are three Boolean operators:

  • &amp...

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Tech Concepts
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Programming languages
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C Programming for Arduino
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