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
About the Author
About the Reviewers

Chapter 8. Designing Visual Output Feedback

Interaction is everything about control and feedback. You control a system by performing actions upon it. You can even modify it. The system gives you feedback by providing useful information about what it does when you modify it.

In the previous chapter, we learned more about us controlling Arduino than Arduino giving us feedback. For instance, we used buttons and knobs to send data to Arduino, making it working for us. Of course, there are a lot of point of view, and we can easily consider controlling an LED and giving feedback to Arduino. But usually, we talk about feedback when we want to qualify a return of information from the system to us.

Arkalgud Ramaprasad, Professor at the Department of Information and Decision Sciences at the College of Business Administration, University of Illinois, Chicago, defines feedback as follows:

"Information about the gap between the actual level and the reference level of a system parameter which is used to...