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Internet of Things with Raspberry Pi 3

By : Rao

4.3 (3)

Buy this Book

Internet of Things with Raspberry Pi 3

4.3 (3)

By: Rao

Buy this Book

Overview of this book

This book is designed to introduce you to IoT and Raspberry Pi 3. It will help you create interesting projects, such as setting up a weather station and measuring temperature and humidity using sensors; it will also show you how to send sensor data to cloud for visualization in real-time. Then we shift our focus to leveraging IoT for accomplishing complex tasks, such as facial recognition using the Raspberry Pi camera module, AWS Rekognition, and the AWS S3 service. Furthermore, you will master security aspects by building a security surveillance system to protect your premises from intruders using Raspberry Pi, a camera, motion sensors, and AWS Cloud. We'll also create a real-world project by building a Wi-Fi – controlled robot car with Raspberry Pi using a motor driver circuit, DC motor, and a web application. This book is a must-have as it provides a practical overview of IoT’s existing architectures, communication protocols, and security threats at the software and hardware levels—security being the most important aspect of IoT.

Preface

Who this book is for

What this book covers

To get the most out of this book

Get in touch

Free Chapter

Introduction to IoT

Understanding IoT

History and evolution

IoT–applications and future prospects

Summary

Know Your Raspberry Pi

Understanding Raspberry Pi 3

Important features of Raspberry Pi 3 Model B

Setting up Raspberry Pi

Setting up headless Raspberry Pi

Summary

Let's Communicate

The internet

The rise of JavaScript and Node.js

HTTP

MQTT

MQTT brokers

Summary

Weather Station

Sensors

Weather API

Google sheets

Summary

Controlling the Pi

L293D

DC motor

Light-emitting diode

Summary

Security Surveillance

Infrared sensors

Ultrasonic sensors

Buzzer

Raspberry Pi camera module

Wiring up

The code

Summary

Image Recognition

Understanding image recognition

Deep learning

How image recognition works

Recognizing an image

Amazon Web Services

AWS S3

AWS Rekognition

Identity and access management

Command line interface

Implementation

The code

Summary

Bot Building

Car chassis

Pulse-width modulation

Wiring up the bot

Executing the commands

Summary

Security in IoT

The challenges in providing IoT security

Secure communication

Trends and challenges in specific industries

Securing Raspberry Pi

Improving SSH security

Setting up a firewall

Summary

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AWS Rekognition

Rekognition is one of the AI/machine learning services provided by AWS. This is basically a computer vision-based service, which allow us to do analysis of videos and images without having to write all the algorithms by ourselves. We just need to provide a video or image as input to the Rekognition service and it will identify objects, texts, people, scenes, and activities. It also provides an accurate facial analysis and recognition service.

AWS Rekognition is based on deep learning technology, which we have already discussed in an earlier section of this chapter.

It provides an easy-to-use API/SDK to implement solutions. Rekognition takes data from the S3 storage service to perform the analysis.

The common use cases for which Rekognition is used are as follows: