Book Image

Internet of Things Projects with ESP32

By : Agus Kurniawan
Book Image

Internet of Things Projects with ESP32

By: Agus Kurniawan

Overview of this book

ESP32 is a low-cost MCU with integrated Wi-Fi and BLE. Various modules and development boards-based on ESP32 are available for building IoT applications easily. Wi-Fi and BLE are a common network stack in the Internet of Things application. These network modules can leverage your business and projects needs for cost-effective benefits. This book will serve as a fundamental guide for developing an ESP32 program. We will start with GPIO programming involving some sensor devices. Then we will study ESP32 development by building a number of IoT projects, such as weather stations, sensor loggers, smart homes, Wi-Fi cams and Wi-Fi wardriving. Lastly, we will enable ESP32 boards to execute interactions with mobile applications and cloud servers such as AWS. By the end of this book, you will be up and running with various IoT project-based ESP32 chip.
Table of Contents (12 chapters)

Introducing ESP32 Wi-Fi development

Wi-Fi, or a wireless network, is a communication model that makes it possible to interact with another system. With these, we can perform common network tasks over network protocols such as TCP/IP, UDP/IP, HTTP, or SMTP/POP3. Since the ESP32 chip has built-in Wi-Fi and a Bluetooth module, we connect our ESP32 board to an existing network.

To work with Wi-Fi on ESP32, we need the esp_wifi.h header file to be included in our project:

#include "esp_wifi.h"

Wi-Fi programming in ESP32 uses an event-based model. We call the Wi-Fi API from the board driver in order to access the Wi-Fi module on the ESP32 board. The ESP32 Wi-Fi API supports Wi-Fi security such as WPA, WPA2, and WEP. A list of Wi-Fi API functions can be found at

In this chapter, we will...