Book Image

Developing IoT Projects with ESP32

By : Vedat Ozan Oner
Book Image

Developing IoT Projects with ESP32

By: Vedat Ozan Oner

Overview of this book

Developing IoT Projects with ESP32 provides end-to-end coverage of secure data communication techniques from sensors to cloud platforms that will help you to develop production-grade IoT solutions by using the ESP32 SoC. You'll learn how to employ ESP32 in your IoT projects by interfacing with different sensors and actuators using different types of serial protocols. This book will show you how some projects require immediate output for end-users, and cover different display technologies as well as examples of driving different types of displays. The book features a dedicated chapter on cybersecurity packed with hands-on examples. As you progress, you'll get to grips with BLE technologies and BLE mesh networking and work on a complete smart home project where all nodes communicate over a BLE mesh. Later chapters will show you how IoT requires cloud connectivity most of the time and remote access to smart devices. You'll also see how cloud platforms and third-party integrations enable endless possibilities for your end-users, such as insights with big data analytics and predictive maintenance to minimize costs. By the end of this book, you'll have developed the skills you need to start using ESP32 in your next wireless IoT project and meet the project's requirements by building effective, efficient, and secure solutions.
Table of Contents (17 chapters)
1
Section 1: Using ESP32
7
Section 2: Local Network Communication
12
Section 3: Cloud Communication

Technical requirements

You can find the chapter code in the GitHub repository here: https://github.com/PacktPublishing/Internet-of-Things-with-ESP32/tree/main/ch12.

The external libraries can be found here: https://github.com/PacktPublishing/Internet-of-Things-with-ESP32/tree/main/common.

When we prototype on a breadboard, we need the following items as hardware:

  • An ESP32 devkit
  • A breadboard, four tactile buttons, and jumper wires
  • A relay module with at least three relays on it (5 V DC input to drive 230 V AC output)
  • A logic converter, 3.3 V to 5 V (for example, an AZ-Delivery TXS0108E logic level converter module)
  • A power source (for example, the power supply module from the ELEGOO kit)

After developing and testing the code, we can move the hardware setup to a universal PCB so that we can mount the assembled hardware on a fan. You don't need to do this part of the project if you're happy with the prototype on the breadboard. However,...