Book Image

C Programming for Arduino

By : Julien Bayle
Book Image

C Programming for Arduino

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)
C Programming for Arduino
Credits
About the Author
Acknowledgement
About the Reviewers
www.PacktPub.com
Preface
Index

Multiplexing with a CD4051 multiplexer/demultiplexer


We are going to explore a technique called multiplexing . This is a major subchapter because we are going to learn how to make our real-life project more concrete, more real.

We often have many constraints in the real world. One can be the number of Arduinos available. This constraint can also come from having a computer that has only one USB port. Yes, this happens in real life, and I would be lying if I said you can have every connector you want, whenever you want, within the budget you want.

Imagine that you have to plug more than eight sensors to you Arduino's analog input. How would you do it?

We will learn to multiplex signals.

Multiplexing concepts

Multiplexing is quite common in the telecommunications world. Multiplexing defines techniques providing efficient ways to make multiple signals share a single medium.

Basic multiplexing concept showing the shared medium

This technique provides a very helpful concept in which you only need one...