Book Image

Internet of Things with ESP8266

By : Marco Schwartz
Book Image

Internet of Things with ESP8266

By: Marco Schwartz

Overview of this book

The Internet of Things (IoT) is the network of objects such as physical things embedded with electronics, software, sensors, and connectivity, enabling data exchange. ESP8266 is a low cost WiFi microcontroller chip that has the ability to empower IoT and helps the exchange of information among various connected objects. ESP8266 consists of networkable microcontroller modules, and with this low cost chip, IoT is booming. This book will help deepen your knowledge of the ESP8266 WiFi chip platform and get you building exciting projects. Kick-starting with an introduction to the ESP8266 chip, we will demonstrate how to build a simple LED using the ESP8266. You will then learn how to read, send, and monitor data from the cloud. Next, you’ll see how to control your devices remotely from anywhere in the world. Furthermore, you’ll get to know how to use the ESP8266 to interact with web services such as Twitter and Facebook. In order to make several ESP8266s interact and exchange data without the need for human intervention, you will be introduced to the concept of machine-to-machine communication. The latter part of the book focuses more on projects, including a door lock controlled from the cloud, building a physical Bitcoin ticker, and doing wireless gardening. You’ll learn how to build a cloud-based ESP8266 home automation system and a cloud-controlled ESP8266 robot. Finally, you’ll discover how to build your own cloud platform to control ESP8266 devices. With this book, you will be able to create and program Internet of Things projects using the ESP8266 WiFi chip.
Table of Contents (20 chapters)
Internet of Things with ESP8266
About the Author
About the Reviewer

Controlling the lamp from anywhere in the world

We are now going to use the same principles and code that we used so far for another application: controlling a lamp (or any electrical appliance) from anywhere in the world.

The configuration for this section is very simple: first, place the ESP8266 module on the breadboard, if that's not been done yet. Then, connect the Vin+ pin of the PowerSwitch Tail to the pin number 5 of the ESP8266. Finally, connect the two remaining pins of the PowerSwitch Tail to the GND pins of the ESP8266.

This is a picture of the final result:

Then, connect the lamp (or the electrical appliance of your choosing) to the PowerSwitch Tail, and the other end of the PowerSwitch to the mains electricity.

For the code, simply use the exact same code as in the previous section: the main changes will only happen inside the dashboard itself.

Inside the dashboard, delete the previous slider element, and create a new one of the Digital type, using the same parameters as before: