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 6: A Good Old Friend – Wi-Fi

Wi-Fi (of the IEEE 802.11 family of standards) is the most prominent wireless standard in the industry, so Espressif has integrated this technology into all of its products – ESP32 is no exception. In this chapter, we will learn how to use ESP32 in a Wi-Fi environment by connecting it to a local Wi-Fi network. After connecting to local Wi-Fi, a huge world of IoT opens that lets ESP32 communicate with servers and other connected devices. ESP-IDF provides all the software support needed to develop Transmission Control Protocol/Internet Protocol (TCP/IP) applications.

This chapter contains practical examples of client/server solutions over TCP/IP. We will discuss how to implement Hypertext Transfer Protocol (HTTP) server and client applications on ESP32 as well as examples of other application layer protocols, such as Multicast Domain Name System (mDNS) and Simple Network Time Protocol (SNTP), which can be needed in some real-world...