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

Questions

Let's review the chapter by answering the following questions:

  1. Which protocol makes use of topics to publish and subscribe?

    a) HTTP

    b) WebSocket

    c) CoAP

    d) MQTT

  2. Which one is not correct for CoAP?

    a) It is a server-client protocol.

    b) It provides RESTful communication for IoT devices.

    c) Only runs on top of UDP.

    d) A client sends HTTP requests.

  3. Which problem is solved by WebSocket?

    a) Polling server for status updates

    b) The need for a server

    c) Lowers the energy consumption of constrained devices

    d) Replaces TCP for IoT devices

  4. Which one is not a common feature of IoT platforms?

    a) They provide secure endpoints.

    b) Security is an optional feature.

    c) We can use more services after authenticating an IoT device.

    d) Data analytics in the cloud.

  5. What is not correct about an MQTT connection to AWS IoT?

    a) A policy file is needed to define permissions.

    b) A device must be authenticated to communicate.

    c) A policy file is automatically generated when a thing is created...