You're reading from Raspberry Pi: Amazing Projects from Scratch Explore the powers of Raspberry Pi and build your very own projects right out of the box

Product type Course

Published in Sep 2016

Publisher

ISBN-13 9781787128491

Length 593 pages

Edition 1st Edition

Tools

Raspberry Pi

Concepts

Single Board Computers Robotics

Authors (4):

Matthew Poole

Ashwin Pajankar

Richard Grimmett

Arush Kakkar

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Table of Contents (6) Chapters

Preface

1. Module 1 FREE CHAPTER

2. Module 2

3. Module 3

A. Bibliography

Index

Chapter 5. Adding a Passive Infrared Motion Sensor

In the previous chapter, we started adding basic but commonly used magnetic switch sensors to our home security system and reading their status to protect doors and windows from intrusion. We also looked at how we can divide our home into zones, such as by individual rooms, so that we can group our sensors into logical circuits, which can then be identified as part of these zones rather than as individual sensor inputs.

We will now add motion sensors to our system in the form of Passive Infra-Red (PIR) detectors. These detectors come in a variety of types, and you may have seen them lurking in the corners of rooms. Fundamentally, they all work in the same way, which is detecting the presence of body heat within a certain range; so, they are commonly used to trigger alarm systems when somebody (or something, such as a pet cat) enters a room.

A typical PIR motion sensor (type GardScan QX-PIR)

In this chapter, we will:

Learn how PIR...

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Authors (5)

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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Ashwin Pajankar

Ashwin Pajankar is an author, a YouTuber, and an instructor. He graduated from the International Institute of Information Technology, Hyderabad, with an MTech in Computer Science and Engineering. He has been writing programs for over two and a half decades. He is proficient in Linux, Unix shell scripting, C, C++, Java, JavaScript, Python, PowerShell, Golang, HTML, and assembly language. He has worked on single-board computers such as Raspberry Pi and Banana Pro. He is also proficient with microcontroller boards such as Arduino and the BBC Micro:bit. He is currently self-employed and teaches on Udemy and YouTube. He also organizes programming boot camps for working professionals and software companies.

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Matthew Poole

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Richard Grimmett

Richard Grimmett has more fun that should be allowed working on robotics projects while teaching Computer Science and Electrical Engineering at Brigham Young University Idaho. He has a Bachelors and Masters degree in Electrical Engineering and a PhD in Leadership Studies. He also has 26 years of experience in the Radar and Telecommunications industries, and even has one of the original brick phones. He has written books on the basics of using the BeagleBone Black for robotics projects, and another for the Raspberry PI and yet another for the Arduino.

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Arush Kakkar

Arush Kakkar is a computer vision and deep learning researcher and an undergraduate at Delhi Technological University. His primary focus is on autonomous robotics, which includes drones and self-driving cars, and he has been involved in building such systems in different capacities, such as navigation, localization, path planning. He has also leveraged state-of-the art computer vision and deep learning technologies for them. He is the electrical systems head of the Solar Car team of his university, Solaris DTU. He is currently working on his own driverless car company, CruiseX, which uses deep learning to drive more smoothly and with fewer errors.

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You're reading from Raspberry Pi: Amazing Projects from Scratch Explore the powers of Raspberry Pi and build your very own projects right out of the box

Table of Contents (6) Chapters

Chapter 5. Adding a Passive Infrared Motion Sensor

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Authors (5)

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