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

Chapter 8: I Can Speak BLE

Bluetooth is a short-range wireless standard for portable equipment applications. It was originally designed as a wireless alternative to serial communication protocols such as RS-232, to provide communication between two devices. Bluetooth specifications are developed by the Bluetooth Special Interest Group (SIG) with thousands of members worldwide. Starting from the Bluetooth 4.0 core specification, the Bluetooth SIG especially targets IoT applications to support device developers with modern features such as low energy, mesh networking, and location services.

The current standard specifies two radio versions, Bluetooth Classic (BR/EDR) and Bluetooth Low Energy (BLE). ESP32 supports both of them by design. In this chapter, we will discuss BLE features of ESP32 with practical examples and learn how to use BLE in real-life scenarios. BLE is a huge subject to discuss in detail in a single chapter, so I have provided a reference book in the Further reading...