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Building a Home Security System with Raspberry Pi

You're reading from Building a Home Security System with Raspberry Pi

Product type Book

Published in Dec 2015

Publisher

ISBN-13 9781782175278

Pages 190 pages

Edition 1st Edition

Languages

Concepts

Single Board Computers

Author (1):

Matthew Poole

Table of Contents (16) Chapters

Building a Home Security System with Raspberry Pi

Credits

About the Author

About the Reviewers

www.PacktPub.com

Preface

1. Setting Up Your Raspberry Pi

2. Connecting Things to Your Pi with GPIO

3. Extending Your Pi to Connect More Things

4. Adding a Magnetic Contact Sensor

5. Adding a Passive Infrared Motion Sensor

6. Adding Cameras to Our Security System

7. Building a Web-Based Control Panel

8. A Miscellany of Things

9. Putting It All Together

Index

Getting acquainted with the GPIO

Before we embark on connecting lots of things to our Pi board, it might be a good idea to just get acquainted with the GPIO through a couple of simple projects that will help us understand how to interact with the digital I/O pins using shell scripts.

Let there be light

This simple little project shows how to connect a GPIO output to an LED, and switch it on and off using shell commands.

The following diagram shows how to connect up the circuit using a breadboard:

Note

The pretty diagram that you just saw was produced using a free software tool from fritzing, which is an open-source hardware initiative to make electronics accessible as creative material for anyone. Download it from fritzing.org.

The LED anode (the positive side) is connected to the D0 digital I/O (pin 11 of the connector or GPIO17). When this pin is switched on, it will provide a 3.3V supply to the LED.

The LED is connected to the Ground pin via a 220R resistor on the cathode (negative side). The...

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Authors (1)

Matthew Poole

Matthew Poole is a systems engineer based near Southampton on the south coast of England, with over 20 years of industry experience. After graduating in electronics and communications engineering, he went on to train as and become an air traffic engineer for Civil Aviation Authority, UK, working on microprocessor-based control and communications systems. Later, he became a software architect and mobile technology specialist, working for several consultancies and global organizations in both hands-on architecture and product-management roles . He is now a partner at Connecting Objects, a boutique systems consultancy focusing on the design of Bluetooth and other wireless-based IoT systems, taking ideas from concept to prototype. He is also the Director of Technology for Mobile Onboard, a leading UK-based transport technology company specializing in bus connectivity and mobile ticketing systems. He is also the author of Building a Home Security System with Raspberry Pi, Packt Publishing. You can find his blog at http://cubiksoundz.com and LinkedIn profile at https://www.linkedin.com/in/cubik, or you can reach him on Twitter at @cubiksoundz.

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