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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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Controlling the Pi

Previously, we learned how to interface sensors with the Pi, which collects data and transmits it to a server/cloud over the internet. But in this chapter, we will learn how to communicate with the Pi in other ways, that is, to control the Raspberry Pi and devices/actuators connected to it remotely from the cloud over the internet.

As actuators or devices, we take a DC motor and a few LEDs that we want to control remotely.
The hardware requirements for this chapter will be:

Raspberry Pi
L293D motor driver IC
DC motor
Two LEDs

Since we have already been working with the Raspberry Pi and know it really well, we will focus on the details of the L293D motor driver, DC motor, and LED.