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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

Pitch shift effect controlled by hand


Pitch shifting is a well-known effect in all fields related to sound processing. It changes the pitch of an incoming sound. Here we are going to implement a very cheap pitch shifter with Max 6, but we will focus on how to control this sound effect. We will control it by moving our hand over a distance sensor.

We are going to use the same circuit as the one in Chapter 6, Sense the World – Feeling with Analog Inputs.

The circuit with the sensor and the firmware

The following circuit shows the Arduino board connected to a sensor:

The Sharp distance sensor connected to Arduino

The firmware is almost the same too. I removed the part about the distance calculation because, indeed, we don't care about the distance itself.

The ADC of Arduino provides a resolution of 10 bits, which will give numbers from 0 to 1023. We are going to use this value to calibrate our system.

The following code is the firmware. You can find it in the Chapter12/PitchShift folder:

int sensorPin...
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Tech Concepts
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Programming languages
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C Programming for Arduino
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