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.

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Table of Contents (12 chapters)
Preface
Preface
Who this book is for
What this book covers
To get the most out of this book
Get in touch
Free Chapter
1
Getting Started with ESP32
Getting Started with ESP32
Technical requirements
Introduction to ESP32
Reviewing development boards-based ESP32
Setting up the development environment
Demo 1 – building your first ESP32 program
Arduino programming for ESP32
Demo 2 - making an Arduino Sketch program with ESP32
Summary
Further reading
2
Making Visual Data and Animation on an LCD
Making Visual Data and Animation on an LCD
Technical requirements
Introduction to ESP32 GPIO
Introduction to IoT for weather monitoring systems
Reading temperature and humidity from a sensor device
Displaying information using an LCD
Making a weather monitoring system
Summary
Further reading
3
Building a Simple Game with an Embedded ESP32 Board
Building a Simple Game with an Embedded ESP32 Board
Technical requirements
Introducing game-embedded systems
Introducing the joystick sensor module
Working with the joystick sensor module
Working with a sound buzzer
Demo – building a simple embedded game
Summary
4
Building a Sensor Monitoring Logger
Building a Sensor Monitoring Logger
Technical requirements
Introducing the sensor monitoring logger
Accessing a microSD card from the ESP32
Demo – accessing microSD cards from the ESP32
Storing sensor data on a microSD card
Project – building a sensor monitoring logger
Summary
5
Controlling IoT Devices over the Internet
Controlling IoT Devices over the Internet
Technical requirements
Introducing ESP32 Wi-Fi development
Scanning Wi-Fi hotspot
Connecting to an existing Wi-Fi network
Accessing data from a web server
Building your own web server inside ESP32
Project - making a smart home
Summary
6
Building an IoT Weather Station
Building an IoT Weather Station
Technical requirements
Introducing a weather station
Working with DHT sensors
Building an IoT weather station
The auto-refresh weather application
Handling a massive data request for a weather station
Summary
7
Making Your Own Wi-Fi Wardriving
Making Your Own Wi-Fi Wardriving
Technical requirements
Introducing Wi-Fi Wardriving
Reviewing the GPS module
Accessing your location via the GPS module
Parsing GPS data
Building your own Wi-Fi Wardriving with ESP32
Mapping Wi-Fi hotspots to Google Maps
Privacy issues
Summary
8
Building Your Own Wi-Fi Cam
Building Your Own Wi-Fi Cam
Technical requirements
Introducing Wi-Fi cams
Reviewing camera modules
Accessing the camera from ESP32
Demo – building a Wi-Fi cam
Summary
9
Making IoT Devices Interact with Mobile Applications
Making IoT Devices Interact with Mobile Applications
Technical requirements
Introducing mobile applications
Making a mobile application and ESP32 interact
Controlling ESP32 from a mobile application
Summary
10
Building IoT Monitoring with Cloud Technology
Building IoT Monitoring with Cloud Technology
Technical requirements
Introducing cloud technology
Connecting ESP32 to cloud platforms
Building IoT monitoring with ESP32 and AWS
Summary
Further reading
11
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Building an IoT Weather Station

In this chapter, we will continue to develop our understanding of how to build an Internet of Things (IoT)-based weather monitoring system, which we looked at in Chapter 2, Making Visual Data and Animation on an LCD. We will learn more practices to develop a weather monitoring system by adding internet connectivity capabilities. Furthermore, we will also learn how to handle requests from clients who are trying to access the service.

In this chapter, we will explore the following topics:

  • Introducing a weather station
  • Building an IoT weather station
  • Handling large data requests for weather monitoring systems
Previous Section
End of Section 1
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