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 (18 chapters)
1
Section 1: Using ESP32
7
Section 2: Local Network Communication
12
Section 3: Cloud Communication

Implementation

The implementation steps are very similar to that we did in the previous chapter for the smart temperature sensor:

  1. Create a smart home skill.
  2. Create and configure a Lambda function to handle the requests from the smart home skill.
  3. Link the Amazon account to the skill and enable the skill.
  4. Create a thing in AWS IoT Core.
  5. Develop the Lambda function and test it.
  6. Develop the smart fan firmware.
  7. Test the smart fan with voice commands.

Since we have already examined this procedure in detail in Chapter 11, Connectivity Is Never Enough – Third-Party Integrations, I will fast-forward through them and discuss the application code more. Let's begin by creating the smart home skill.

Creating the skill

As of the time of writing this book, the AVS command-line tool (version 2.22.4) doesn't support smart home skills, so we will stick with the web GUI for the skill operations. Here are the steps to create a skill:

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