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Developing IoT Projects with ESP32

You're reading from Developing IoT Projects with ESP32 Unlock the full Potential of ESP32 in IoT development to create production-grade smart devices

Product type Paperback

Published in Nov 2023

Publisher Packt

ISBN-13 9781803237688

Length 578 pages

Edition 2nd Edition

Languages

C++

Tools

ESP32

Concepts

Internet of Things Security

Author (1):

Vedat Ozan Oner

View More author details

Table of Contents (15) Chapters

Preface

1. Introduction to IoT development and the ESP32 platform

2. Understanding the Development Tools FREE CHAPTER

3. Using ESP32 Peripherals

4. Employing Third-Party Libraries in ESP32 Projects

5. Project – Audio Player

6. Using Wi-Fi Communication for Connectivity

7. ESP32 Security Features for Production-Grade Devices

8. Connecting to Cloud Platforms and Using Services

9. Project – Smart Home

10. Machine Learning with ESP32

11. Developing on Edge Impulse

12. Project – Baby Monitor

13. Other Books You May Enjoy

14. Index

Upgrading firmware from an HTTPS server

In the first example of the OTA update, we will start a file server in the local network and download new firmware from this server to upgrade the device. The file server is a simple Python Flask application that runs on our development machine. The device firmware will poll the firmware information from the server periodically and if it shows the firmware version on the server is different from the version that runs on the device, then it will download the new firmware from the server for an upgrade.

One of the important points in OTA updates is that we want a secure communication channel between the server and devices to prevent any unwanted ears from listening to the network traffic and intercepting the new firmware while transferring to the devices. Thus, we will configure the server with TLS encryption in this example. The Flask application will use a TLS certificate to encrypt the HTTP traffic between the parties. On the ESP32 application...

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Authors (1)

Vedat Ozan Oner

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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