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Building a Home Security System with Raspberry Pi

You're reading from   Building a Home Security System with Raspberry Pi Build your own sophisticated modular home security system using the popular Raspberry Pi board

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Product type Paperback
Published in Dec 2015
Publisher
ISBN-13 9781782175278
Length 190 pages
Edition 1st Edition
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Author (1):
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Matthew Poole Matthew Poole
Author Profile Icon Matthew Poole
Matthew Poole
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Table of Contents (11) Chapters Close

Preface 1. Setting Up Your Raspberry Pi 2. Connecting Things to Your Pi with GPIO FREE CHAPTER 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

The multicamera setup


It may have occurred to you that the Raspberry Pi has only one camera module input. Now, this is obviously limiting if you want to have multiple cameras around your property that are triggered by motion detectors.

However, there is nothing stopping us from building standalone units that have a separate Raspberry Pi board with a PIR detector, Camera Module, and network connection, either using a Wi-Fi dongle or Ethernet.

Because you only need a single input to the Raspberry Pi to detect when the PIR motion sensor is triggered, you can use the on-board GPIO port to connect the sensor, rather than using a port expander. The Raspberry Pi will email the alert over the network, and could alert the main controller Pi if required—making it a slave sensor device.

You can readily obtain small PIR detectors, such as the Parallax one shown next, which you can mount onto a Raspberry Pi Case along with the camera module, creating a self-contained unit.

A Parallax PIR motion sensor (type...

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