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ESP8266 Home Automation Projects

You're reading from ESP8266 Home Automation Projects Leverage the power of this tiny WiFi chip to build exciting smart home projects

Product type Paperback

Published in Nov 2017

Publisher Packt

ISBN-13 9781787282629

Length 196 pages

Edition 1st Edition

Tools

ESP8266

Concepts

Home Automation

Authors (2):

Constantin Tambrea

Catalin Batrinu

View More author details

Table of Contents (9) Chapters

Preface

1. Getting Started with the ESP8266

2. Building and Configuring Your Own MQTT Server FREE CHAPTER

3. Building a Home Thermostat with the ESP8266

4. Control Appliances from the ESP8266

5. Using ESP8266 to Build a Security System

6. Securing Your Data

7. Real-Time Communication

8. Adding a Mobile Application to Your Smart Home

WebSockets

WebSockets is a communication protocol, providing full-duplex messages, streaming on top of a Transport Control Protocol (TCP). It is standardized by the W3 organizations and it is present on all major browsers (Internet Explorer must be at version 11+). WebSockets enables the communication between a browser and a server and between our module and a server. Through the server, the data from the ESP8266 can arrive in a browser. Another big advantage for WebSockets is the bidirectional communication without creating a new request. Every communication is done on the opened TCP connection.

Protocol details

A WebSocket connection starts as an HTTP connection with the request to upgrade to a websocket protocol.

In this case, the client is sending:

GET /chat HTTP/1.1Host: server.example.comUpgrade: websocketConnection: UpgradeSec-WebSocket-Key: t3JJHjbGL5EzHkh8GBMXGw==Sec-WebSocket-Protocol: chat, superchatSec-WebSocket-Version: 13Origin: http://example.com

And if the server is websocket...

The rest of the chapter is locked

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Authors (2)

Batrinu

Batrinu

Catalin Batrinu graduated from the Politehnica University of Bucharest in Electronics, Telecommunications, and Information Technology. He has been working as a software developer in telecommunications for the past 16 years. He has worked with old protocols and the latest network protocols and technologies, so he has experienced all transformations in the telecommunication industry. He has implemented many telecommunications protocols, from access adaptations and backbone switches to high-capacity, carrier-grade switches on various hardware platforms from Wintegra and Broadcom. Internet of Things came as a natural evolution for him and now he collaborates with different companies to construct the world of tomorrow that will make our life more comfortable and secure. Using the ESP8266, he has prototyped devices such as irrigation controllers, smart sockets, window shutters, Digital Addressable Lighting Controls, and environment controls, all of them controlled directly from a mobile application over the cloud. An MQTT broker with bridging and a WebSockets server was even developed for the ESP8266. Soon, all those devices will be part of our daily life, so we will all enjoy their functionality.

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Tambrea

Tambrea

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