Book Image

Yocto for Raspberry Pi

By : TEXIER Pierre-Jean, Petter Mabäcker
Book Image

Yocto for Raspberry Pi

By: TEXIER Pierre-Jean, Petter Mabäcker

Overview of this book

The Yocto Project is a Linux Foundation workgroup, which produces tools (SDK) and processes (configuration, compilation, installation) that will enable the creation of Linux distributions for embedded software, independent of the architecture of embedded software (Raspberry Pi, i.MX6, and so on). It is a powerful build system that allows you to master your personal or professional development. This book presents you with the configuration of the Yocto Framework for the Raspberry Pi, allowing you to create amazing and innovative projects using the Yocto/ OpenEmbedded eco-system. It starts with the basic introduction of Yocto's build system, and takes you through the setup and deployment steps for Yocto. It then helps you to develop an understanding of Bitbake (the task scheduler), and learn how to create a basic recipe through a GPIO application example. You can then explore the different types of Yocto recipe elements (LICENSE, FILES, SRC_URI, and so on). Next, you will learn how to customize existing recipes in Yocto/OE layers and add layers to your custom environment (qt5 for example).
Table of Contents (18 chapters)
Yocto for Raspberry Pi
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
3
Mastering Baking with Hob and Toaster

Home automation using a Raspberry Pi


Our home automation project will loosely continue from the "light an LED" example in Chapter 5, Creating, Developing, and Deploying on the Raspberry Pi. It will adapt and evolve that project to create one where the end user can wirelessly light a lamp using a smartphone (or some other device with a web browser).

As illustrated in the following diagram, the idea is to connect a one-channel relay module to the Raspberry Pi, using the GPIO pins. Then, we connect a lamp and an external power source to the relay module, creating a circuit. When everything has been connected, it will be possible to control the relay module (on/off) using GPIO connections from the Raspberry Pi.

A home automation project that enables remote lighting

Material required for the project

You will need the following material for the project:

  • A Raspberry Pi (any model will do)

 The Raspberry Pi Zero requires that you either solder in a GPIO header or solder the wires directly to the GPIO...