ESP8266 Internet of Things Cookbook
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Preface

The ESP8266 chip is a powerful and cheap microcontroller with an onboard Wi-Fi connection. It is also very easy to use, thanks to the compatibility with the Arduino IDE. Therefore, it's just the perfect chip to build the Internet of Things (IoT) projects.

Inside this book, we'll see how to build IoT projects using the ESP8266, via several step-by-step tutorials. At the end, you will know how to use all the functions of the ESP8266, and you will be able to build your own projects with this amazing Wi-Fi chip.

What this book covers

Chapter 1, Configuring the ESP8266, will be about getting started with the ESP8266, and learning how to configure the ESP8266 and all the hardware/software components that you need to use it.

Chapter 2, Your First ESP8266 Projects, will be about learning how to make your first simple projects with the ESP8266.

Chapter 3, More ESP8266 Functions, will be about learning advanced functions of the ESP8266, as using the file storage system.

Chapter 4, Using MicroPython on the ESP8266, will be focused on using the powerful & simple MicroPython language to build projects with the ESP8266.

Chapter 5, Cloud Data Monitoring, will be about connecting your ESP8266 to the cloud, in order to monitor your projects from anywhere in the world.

Chapter 6, Interacting with Web Services, will exploit the Wi-Fi connectivity of the ESP8266 to connect to existing Web services, such as IFTTT or Google Drive.

Chapter 7, Machine to Machine Interactions, will be about building projects where ESP8266 boards communicate directly with each other via the cloud.

What you need for this book

To build the projects you will find in this book, any experience with programming and/or electronics is of course appreciated, but you will be able to follow even if you have little experience in the field, as we will start from the absolute basics of the ESP8266.

Who this book is for

This book is for people who want to build their own Internet of Things projects, using the ESP8266 as the platform to easily build those projects.

It is also for people already building IoT projects, for example with Arduino, and those who want to discover another platform to build IoT projects.

Sections

In this book, you will find several headings that appear frequently (Getting ready, How to do it, How it works, There's more, and See also).

To give clear instructions on how to complete a recipe, we use these sections as follows:

Getting ready

This section tells you what to expect in the recipe, and describes how to set up any software or any preliminary settings required for the recipe.

How to do it…

This section contains the steps required to follow the recipe.

How it works…

This section usually consists of a detailed explanation of what happened in the previous section.

There's more…

This section consists of additional information about the recipe in order to make the reader more knowledgeable about the recipe.

See also

This section provides helpful links to other useful information for the recipe.

Conventions

In this book, you will find a number of text styles that distinguish between different kinds of information. Here are some examples of these styles and an explanation of their meaning.

Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "We will configure pin 5 as an input and then read it using the digitalRead() function and display the state of the input signal on the serial monitor."

A block of code is set as follows:

// LED pin
int inputPin = 5;
int val = 0;

void setup() {
  Serial.begin(9600);
  pinMode(inputPin, INPUT);
}

void loop() {
  
  // read pin
  val = digitalRead(inputPin);
 
  // display state of input pin  
  Serial.println(val);                              
  delay(1000);             
}

Any command-line input or output is written as follows:

esptool.py --port /dev/ttyUSB0 --baud 460800 write_flash --flash_size=detect 0 esp8266-2016-05-03-v1.8.bin

New terms and important words are shown in bold. Words that you see on the screen, for example, in menus or dialog boxes, appear in the text like this: "The .bin files for the MicroPython port for ESP8266 are under the Firmware for ESP8266 boards sub heading."

Note

Warnings or important notes appear in a box like this.

Tip

Tips and tricks appear like this.

Reader feedback

Feedback from our readers is always welcome. Let us know what you think about this book—what you liked or disliked. Reader feedback is important for us as it helps us develop titles that you will really get the most out of.

To send us general feedback, simply e-mail , and mention the book's title in the subject of your message.

If there is a topic that you have expertise in and you are interested in either writing or contributing to a book, see our author guide at www.packtpub.com/authors.

Customer support

Now that you are the proud owner of a Packt book, we have a number of things to help you to get the most from your purchase.

Downloading the example code

You can download the example code files for this book from your account at http://www.packtpub.com. If you purchased this book elsewhere, you can visit http://www.packtpub.com/support and register to have the files e-mailed directly to you.

You can download the code files by following these steps:

  1. Log in or register to our website using your e-mail address and password.
  2. Hover the mouse pointer on the SUPPORT tab at the top.
  3. Click on Code Downloads & Errata.
  4. Enter the name of the book in the Search box.
  5. Select the book for which you're looking to download the code files.
  6. Choose from the drop-down menu where you purchased this book from.
  7. Click on Code Download.

Once the file is downloaded, please make sure that you unzip or extract the folder using the latest version of:

  • WinRAR / 7-Zip for Windows
  • Zipeg / iZip / UnRarX for Mac
  • 7-Zip / PeaZip for Linux

The code bundle for the book is also hosted on GitHub at https://github.com/PacktPublishing/ESP8266-Internet-of-Things-Cookbook. We also have other code bundles from our rich catalog of books and videos available at https://github.com/PacktPublishing/. Check them out!

Downloading the color images of this book

We also provide you with a PDF file that has color images of the screenshots/diagrams used in this book. The color images will help you better understand the changes in the output. You can download this file from http://www.packtpub.com/sites/default/files/downloads/ESP8266InternetofThingsCookbook_ColorImages.pdf.

Errata

Although we have taken every care to ensure the accuracy of our content, mistakes do happen. If you find a mistake in one of our books—maybe a mistake in the text or the code—we would be grateful if you could report this to us. By doing so, you can save other readers from frustration and help us improve subsequent versions of this book. If you find any errata, please report them by visiting http://www.packtpub.com/submit-errata, selecting your book, clicking on the Errata Submission Form link, and entering the details of your errata. Once your errata are verified, your submission will be accepted and the errata will be uploaded to our website or added to any list of existing errata under the Errata section of that title.

To view the previously submitted errata, go to https://www.packtpub.com/books/content/support and enter the name of the book in the search field. The required information will appear under the Errata section.

Piracy

Piracy of copyrighted material on the Internet is an ongoing problem across all media. At Packt, we take the protection of our copyright and licenses very seriously. If you come across any illegal copies of our works in any form on the Internet, please provide us with the location address or website name immediately so that we can pursue a remedy.

Please contact us at with a link to the suspected pirated material.

We appreciate your help in protecting our authors and our ability to bring you valuable content.

Questions

If you have a problem with any aspect of this book, you can contact us at , and we will do our best to address the problem.

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