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Developing IoT Projects with ESP32

You're reading from Developing IoT Projects with ESP32

Product type Book

Published in Sep 2021

Publisher Packt

ISBN-13 9781838641160

Pages 474 pages

Edition 1st Edition

Languages

Concepts

IoT Development

Author (1):

Vedat Ozan Oner

Table of Contents (18) Chapters

Preface

1. Section 1: Using ESP32

2. Chapter 1: Getting Started with ESP32

3. Chapter 2: Talking to the Earth – Sensors and Actuators

4. Chapter 3: Impressive Outputs with Displays

5. Chapter 4: A Deep Dive into the Advanced Features

6. Chapter 5: Practice – Multisensor for Your Room

7. Section 2: Local Network Communication

8. Chapter 6: A Good Old Friend – Wi-Fi

9. Chapter 7: Security First!

10. Chapter 8: I Can Speak BLE

11. Chapter 9: Practice – Making Your Home Smart

12. Section 3: Cloud Communication

13. Chapter 10: No Cloud, No IoT – Cloud Platforms and Services

14. Chapter 11: Connectivity Is Never Enough – Third-Party Integrations

15. Chapter 12: Practice – A Voice-Controlled Smart Fan

16. Answers

17. Other Books You May Enjoy

IoT protocols with ESP32

There are a number of application layer protocols for IoT devices to communicate with remote servers. Their design principles and architectures are quite different, so it is really a matter of requirements and constraints which one to choose in an IoT project. Let's discuss some popular protocols and their features with examples.

MQTT

Message Queue Telemetry Transport (MQTT) is a many-to-many communication protocol with a message broker as the mediator. There are publishers that send messages to the topics on the broker, and there are subscribers that receive messages from the topics that they have subscribed to. A node can be a publisher and subscriber at the same time:

Figure 10.1 – MQTT communication model

For MQTT, TCP is the underlying transport protocol and TLS can be configured for communication security.

Let's see how MQTT works with a simple example. We will develop a sensor device with DHT11...

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Authors (1)

Vedat Ozan Oner

Vedat Ozan Oner is an IoT product developer and software architect, with an excellent blend of technical knowledge and experience. During his career, he has contributed to several IoT projects in different roles, which allowed him to discover all key aspects of developing successful IoT products in highly competitive markets. Vedat has a bachelor's degree in METU/computer engineering and holds several industry-recognized credentials and qualifications, including PMP®, ITIL®, and AWS Certified Developer. Vedat started his limited company, Mevoo Ltd, in London in 2018 to provide consultancy services to his clients as well as develop his own IoT products. He still lives in London with his family.

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