Book Image

ESP8266 Internet of Things Cookbook

By : Marco Schwartz
Book Image

ESP8266 Internet of Things Cookbook

By: Marco Schwartz

Overview of this book

The ESP8266 Wi-Fi Module is a self contained System on Chip (SOC) with an integrated TCP/IP protocol stack and can give any microcontroller access to your Wi-Fi network. It is capable of either hosting an application or offloading all Wi-Fi networking functions from another application processor. This book contains practical recipes that will help you master all ESP8266 functionalities. You will start by configuring and customizing the chip in line with your requirements. Then you will focus on core topics such as on-board processing, sensors, GPIOs, programming, networking, integration with external components, and so on. We will also teach you how to leverage Arduino using the ESP8266 and you'll learn about its libraries, file system, OTA updates, and so on. The book also provide recipes on web servers, testing, connecting with the cloud, and troubleshooting techniques. Programming aspects include MicroPython and how to leverage it to get started with the ESP8266. Towards the end, we will use these concepts and create an interesting project (IOT). By the end of the book, readers will be proficient enough to use the ESP8266 board efficiently.
Table of Contents (15 chapters)
ESP8266 Internet of Things Cookbook
About the Author
About the Reviewer
Customer Feedback

Basic local machine to machine interactions

In this recipe, we are going to demonstrate Basic local machine to machine interactions. To do that, we will build a simple project that demonstrates machine to machine interaction between two ESP8266 boards. This will enable you to create simple networks using your ESP8266 boards, with no Internet connection.

Getting ready

You will need the following hardware components for this project:

  • Two ESP8266 boards

  • Two USB cables

  • 220 Ω resistor

  • LED

  • Momentary Push button

  • 10 kΩ resistor

Connect a Push button and a 10 kΩ pull up resistor to the GPIO2 pin. The Push button will be used as an input. This ESP8266 board will be configured as the client. The setup is shown in the following figure:

For the second ESP8266, connect an LED to the GPIO2 pin via a 220 Ω current limiting resistor. This ESP8266 is going to be configured as the server. The server setup will look like this:

How to do it…

To successfully transfer data between the two ESP8266 boards, set up one of the...