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 2: Talking to the Earth – Sensors and Actuators

As we have discussed in Chapter 1, Getting Started with ESP32, Internet of Things (IoT) devices interact with the physical world. They collect data from the immediate environment and react based on a condition or schedule in the form of a physical action, a log, or maybe a trigger of another event in its operating environment. How they do this is by means of sensors and actuators.

In this chapter, we're going to use several sensors and actuators by interfacing with an ESP32 development kit (devkit) and will learn about different types of communication protocols.

We'll cover the following topics:

  • Toolchain installation, programming, and debugging ESP32
  • Warming up: Basic input/output (I/O) with buttons, potentiometers (pots), and light-emitting diodes (LEDs)
  • Working with sensors
  • Working with actuators