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Learning AWS IoT
Learning AWS IoT

Learning AWS IoT: Effectively manage connected devices on the AWS cloud using services such as AWS Greengrass, AWS button, predictive analytics and machine learning

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Learning AWS IoT

Connecting IoT Devices to AWS IoT Platform

There are many IoT devices on the market. In this chapter, we will learn how to connect several common IoT devices from the market to AWS IoT. Some tricks and demos are provided to show how to work with these IoT devices. Finally, we will build an IoT application by utilizing IoT devices and AWS IoT.

The following is a list of topics that we will explore in this chapter:

  • Introducing a connectivity model for AWS IoT
  • Selecting your IoT devices for AWS IoT
  • Developing AWS IoT for Raspberry Pi 3
  • Developing AWS IoT for Arduino
  • Developing AWS IoT for ESP32
  • Building an IoT project with AWS IoT

Introducing a connectivity model for AWS IoT

AWS IoT provides several connectivity models to enable IoT devices to establish their connection. Currently, AWS IoT offers the following protocols:

  • Message Queuing Telemetry Transport (MQTT)
  • Hypertext Transfer Protocol (HTTP)
  • MQTT over Websocket 

We can build a connectivity model between IoT devices and the AWS IoT backend. We can categorize the IoT device platform into the following three models based on their supported connectivity:

  • For an IoT device with network capabilities, if this device has all the support required by AWS IoT, then this device can access AWS IoT directly.
  • The second connectivity model is to build a connection to AWS IoT through a gateway. This approach is applied for an IoT device that has network capabilities which are not supported for AWS IoT protocols.
  • The last approach is to be applied to IoT devices...

Selecting your IoT devices for AWS IoT

We already know that there are a lot of IoT devices on the market. To work with AWS IoT, Amazon provides guidelines about a list of IoT devices with supported AWS IoT. You can read it at https://aws.amazon.com/iot-platform/getting-started/#kits. Otherwise, you can use own IoT devices and ensure that they are compatible with AWS IoT SDK by referring to https://aws.amazon.com/iot-platform/sdk/.

From this, you can make a self-assessment when you select an IoT device for the AWS IoT platform. You can verify your selection with the following questions:

  • Does the IoT device have a network capability? A network capability probably can identity network features such as Ethernet, Wi-Fi, Bluetooth, Zigbee and LoRa.
  • Does the IoT device network module give support for the AWS IoT protocol? Make sure your IoT device can communicate with...

Configuring IoT devices to AWS IoT

In this section, we will configure an IoT device in order to access AWS IoT. Several steps should be taken to complete the registration process:

  1. Firstly, we create a thing type. You can perform this task on the Manage | Types menu from AWS IoT Console and then click on the Create button. Fill in the type name and attributes for your IoT device. For instance, we give a thing type as IoT-Device with  name as the thing attribute :
  1. After this has been created, you should see it on the Types screen from the AWS IoT dashboard, as shown in the following screenshot:
  1. Next, we add three IoT devices into AWS IoT. Navigate to Manage| Things on the AWS IoT dashboard. Then, you add a thing name and its attribute as shown in the screenshot below the table. The following is our configuration of IoT devices:
Device...

AWS IoT development for Raspberry Pi 3

Raspberry Pi is a famous IoT development. At a low price, you can obtain a minicomputer. Some demo scenarios in this book can be implemented using a desktop computer. Currently, Raspberry Pi 3 is the latest product from Raspberry Pi Foundation. For further information about Raspberry Pi and getting this board, I recommend that you visit the official website at http://raspberrypi.org.

Raspberry Pi 3 can be deployed on various OSes, such as Linux and Windows 10 IoT Core. In this chapter, we will focus on Raspberry Pi 3 with Linux as the OS. We use Raspbian Linux. You can download and install it at https://www.raspberrypi.org/downloads/raspbian/.

Raspbian Linux can work as a console or in desktop mode. You can see Raspbian Linux on Raspberry Pi 3  in the following screenshot:

The corresponding AWS IoT SDK  is available at...

AWS IoT development for Arduino

Most IoT device developments use the Arduino board as the board target. Since Arduino shares schemes and designs, the makers make their own boards with custom Arduino models. Arduino models range from the basic Arduino board model to the advanced Arduino board model. The Arduino board is the best choice to introduce IoT development.

In this section, we will explore how to use Arduino Yún to interact with AWS IoT. For further information about Arduino Yún, I recommend that you read the official documentation at https://www.arduino.cc/en/Guide/ArduinoYun.

To work with AWS IoT using Arduino Yún, we perform the following steps:

  1. Install the Arduino software
  2. Connect Arduino Yún to a network through Ethernet or a Wi-Fi module
  3. Configure Arduino Yún for AWS IoT SDK
  4. Build a program for Arduino Yún

Each step will be performed...

AWS IoT development for boards based on ESP32

The ESP32 chip is an MCU with Wi-Fi and Bluetooth network modules. This chip is developed by Espressif. For further information about the ESP32 chip, I recommend that you read the product documentation at http://espressif.com/en/products/hardware/esp32/overview.

There are a lot of boards based on ESP32. You can find various boards based on  ESP32 from SparkFun, Adafruit, or embedded companies from China. To work with AWS IoT on the ESP32 chip, we can apply the Mongoose OS platform from Cesanta. You can review the details of this platform on the official website at https://mongoose-os.com.

Cesanta provides an IoT kit-based ESP32 chip, called Mongoose OS ESP32-DevKitC. The software of Mongoose OS is built from Node.js/JavaScript. To configure this board connecting to AWS IoT, you can follow the instructions at https...

Building an IoT project with AWS IoT

In this section, we will try to develop a simple IoT application by applying the  AWS IoT platform. We will deploy the IoT program on several IoT devices. These devices will use sensors to sense the physical environment, and then send a result of the sensing to AWS IoT. We will also create a small application to listen to incoming messages from AWS IoT. This is called the sensor subscriber application.

You can see a general demo architecture in the following figure. For testing, we use Arduino Yún as the IoT device node:

We  will build each component in the next section.

Configuring AWS IoT

We should configure your AWS IoT. We already configured this in Chapter...

Introducing a connectivity model for AWS IoT


AWS IoT provides several connectivity models to enable IoT devices to establish their connection. Currently, AWS IoT offers the following protocols:

  • Message Queuing Telemetry Transport (MQTT)
  • Hypertext Transfer Protocol (HTTP)
  • MQTT over Websocket 

We can build a connectivity model between IoT devices and the AWS IoT backend. We can categorize the IoT device platform into the following three models based on their supported connectivity:

  • For an IoT device with network capabilities, if this device has all the support required by AWS IoT, then this device can access AWS IoT directly.
  • The second connectivity model is to build a connection to AWS IoT through a gateway. This approach is applied for an IoT device that has network capabilities which are not supported for AWS IoT protocols.
  • The last approach is to be applied to IoT devices that do not have network capabilities. We should attach these devices to a network device, such as Raspberry Pi, BeagleBone...
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Key benefits

  • •Gets you started with AWS IoT and its functionalities
  • •Learn different modules of AWS IoT with practical use cases.
  • •Learn to secure your IoT communication

Description

The Internet of Things market increased a lot in the past few years and IoT development and its adoption have showed an upward trend. Analysis and predictions say that Enterprise IoT platforms are the future of IoT. AWS IoT is currently leading the market with its wide range of device support SDKs and versatile management console. This book initially introduces you to the IoT platforms, and how it makes our IoT development easy. It then covers the complete AWS IoT Suite and how it can be used to develop secure communication between internet-connected things such as sensors, actuators, embedded devices, smart applications, and so on. The book also covers the various modules of AWS: AWS Greengrass, AWS device SDKs, AWS IoT Platform, AWS Button, AWS Management consoles, AWS-related CLI, and API references, all with practical use cases. Near the end, the book supplies security-related best practices to make bi-directional communication more secure. When you've finished this book, you'll be up-and-running with the AWS IoT Suite, and building IoT projects.

Who is this book for?

This book is for anyone who wants to get started with the AWS IoT Suite and implement it with practical use cases. This book acts as an extensive guide, on completion of which you will be in a position to start building IoT projects using AWS IoT platform and using cloud services for your projects.

What you will learn

  • •Implement AWS IoT on IoT projects
  • •Learn the technical capabilities of AWS IoT and IoT devices
  • •Create IoT-based AWS IoT projects
  • •Choose IoT devices and AWS IoT platforms to use based on the kind of project you need to build
  • •Deploy AWS Greengrass and AWS Lambda
  • •Develop program for AWS IoT Button
  • •Visualize IoT AWS data
  • •Build predictive analytics using AWS IoT and AWS Machine Learning
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Publication date : Jan 29, 2018
Length: 278 pages
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Language : English
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Language : English
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Table of Contents

9 Chapters
Getting Started with AWS IoT Chevron down icon Chevron up icon
Connecting IoT Devices to AWS IoT Platform Chevron down icon Chevron up icon
Optimizing IoT Computing Using AWS Greengrass Chevron down icon Chevron up icon
Building Local AWS Lambda with AWS Greengrass Chevron down icon Chevron up icon
Expanding IoT Capabilities with AWS IoT Button Chevron down icon Chevron up icon
Visualizing AWS IoT Data Chevron down icon Chevron up icon
Building Predictive Analytics for AWS IoT Chevron down icon Chevron up icon
Securing AWS IoT Chevron down icon Chevron up icon
Other Books You May Enjoy Chevron down icon Chevron up icon

Customer reviews

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Full star icon Full star icon Half star icon Empty star icon Empty star icon 2.8
(6 Ratings)
5 star 16.7%
4 star 16.7%
3 star 33.3%
2 star 0%
1 star 33.3%
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shreshth Aug 12, 2019
Full star icon Empty star icon Empty star icon Empty star icon Empty star icon 1
I was not able to give lower rating that's why I had to select even one star
Amazon Verified review Amazon
Amit Aug 04, 2019
Full star icon Full star icon Full star icon Full star icon Full star icon 5
The book cover all the basic concept required to understand Aws iot application development.
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jooster Aug 23, 2018
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The examples/instructions in this book are quite incomplete at critical times. It easiliy glosses over details, particularly at the start (where one needs most of the hand holding) leaving you to figure it out for yourself. I cannot recommend this book, it is more a source of annoyance than for education.
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ldir Jun 17, 2018
Full star icon Full star icon Full star icon Empty star icon Empty star icon 3
Generally a good introduction to IoT with two reservation. The jump into using AWS greengrass seemed premature. How about a fully working example, then show how to move the functionality out of the cloud to the device. Secondly, the multiple examples of displaying data felt a bit like padding out the text.
Amazon Verified review Amazon
resoldab Jun 04, 2018
Full star icon Full star icon Full star icon Empty star icon Empty star icon 3
Unfortunately this book did not go deep enough into each topic to provide a comprehensive walkthrough of the AW IoT offerings.I found it left you wondering about the code as it did not explain what it did in detail.Also the install for Raspberry Pi node.js failed and I had to google and hack my way through to get it to install.It seems to concentrate far too much in green grass when I was interested in getting my hardware to communicate with the AWS servers.I would not recommend this if you are looking for some deep dive into the subject.Good for a general overview though.
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