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
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Index

Hardware configuration


We are now going to assemble the different parts of this project. First, you need to get familiar with the different pins of the SHT10 sensor:

Once that's done, put the sensor's connector on the breadboard. Also connect the VCC and GND pins of the ESP8266 to the breadboard red and blue power lines.

Next, connect the sensor's VCC and GND pins to the red and blue power rails, respectively. Then, connect the data pin to pin number 4 of the ESP8266, and the clock pin to pin number 5. Finally, add the 10K Ohm pull-up resistor between the data and the VCC pins of the sensor.

For the relay, simply connect GND to the blue power rail, VCC to the red one, and finally the SIG pin to pin number 15 of the ESP8266.

This is the final result:

However, we are not done yet; we need something to measure! You can now insert the sensor inside the soil, for example in the pot of a plant inside your home, or in your garden outside. This is how I inserted it to monitor one of the plants in my...