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Raspberry Pi Zero Cookbook

You're reading from Raspberry Pi Zero Cookbook

Product type Book

Published in Mar 2017

Publisher Packt

ISBN-13 9781786463852

Pages 422 pages

Edition 1st Edition

Languages

Concepts

Single Board Computers

Table of Contents (17) Chapters

Raspberry Pi Zero Cookbook

Credits

About the Author

About the Reviewer

www.PacktPub.com

Customer Feedback

Preface

Kick-Start Your Raspberry Pi Zero

Setting Up Physical and Wireless Connections

Programming with Linux

Programming with Python

Getting Your Hands Dirty Using the GPIO Header

Controlling the LEDs and Displays

Controlling the Hardware

Taking Digital Inputs to the Raspberry Pi Zero

Interfacing Sensors with the Raspberry Pi Zero

Cooking up Projects to Amaze the World!

Basics of I2C and checking the I2C devices present on a port

I2C is an interface mode on the Raspberry Pi's GPIO that allows communication with all kinds of peripherals. We will be using one of these later on in this chapter when we transmit radio signals. This recipe will show you how to set it up and test it.

Getting ready

The easiest way to configure the use of the I2C interface is with raspi-config. Enter sudo raspi-config and select Interfacing Options. Option P5 will set up I2C communication. Select Enable, reboot, and you are ready to begin. Older versions of Raspbian have I2C in the Advanced Options Menu, as shown below:

Finding I2C in older Raspbian versions

The newer releases of Raspbian have an Interface Menu, where you will find the I2C settings:

How to do it...

After enabling I2C and rebooting your Raspberry Pi, take a look at the device list:

pi@rpz14101:~ $ sudo ls /dev/*i2c*
/dev/i2c-1

Installing i2ctools will give you a few more options when working with the I2C interface...

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