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Internet of Things with ESP8266

You're reading from Internet of Things with ESP8266 Build amazing Internet of Things projects using the ESP8266 Wi-Fi chip

Product type Paperback

Published in Jul 2016

Publisher Packt

ISBN-13 9781786468024

Length 226 pages

Edition 1st Edition

Tools

ESP8266

Concepts

Single Board Computers

Author (1):

Marco Schwartz

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Table of Contents (15) Chapters

Preface

1. Getting Started with the ESP8266 FREE CHAPTER

2. First Projects with the ESP8266

3. Cloud Data Logging with the ESP8266

4. Control Devices from Anywhere

5. Interacting With Web Services

6. Machine-to-Machine Communications

7. Sending Notifications from the ESP8266

8. Controlling a Door Lock from the Cloud

9. Building a Physical Bitcoin Ticker

10. Wireless Gardening with the ESP8266

11. Cloud-Based Home Automation System

12. Cloud-Controlled ESP8266 Robot

13. Building Your Own Cloud Platform to Control ESP8266 Devices

Index

Configuring the hardware

Let's now configure the hardware for this project. The configuration for this project is quite complex, which was why I included a schematic to help you out:

This schematic represents how you should connect the lock to the ESP8266. First, place the transistor on the breadboard, and connect the base of the transistor to the ESP8266 via the 1K Ohm resistor. Then, connect the emitter of the transistor to the ground of the ESP8266. After that, connect the door lock to the 12V DC power supply and to the remaining pin of the transistor. Finally, connect the diode in parallel to the lock, as indicated on the schematics. Note that on the diode, the cathode is usually marked with a grey stripe, corresponding to the schematics.

This is how it should look at the end:

The rest of the chapter is locked

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Authors (1)

Marco Schwartz

Marco Schwartz

Marco Schwartz is an electrical engineer, entrepreneur, and blogger. He has a master's degree in electrical engineering and computer science from Supélec, France, and a master's degree in micro engineering from the Ecole Polytechnique Fédérale de Lausanne (EPFL), Switzerland. He has more than five years' experience working in the domain of electrical engineering. Marco's interests center around electronics, home automation, the Arduino and Raspberry Pi platforms, open source hardware projects, and 3D printing. He has several websites about the Arduino, including the Open Home Automation website, which is dedicated to building home automation systems using open source hardware. Marco has written another book on home automation and the Arduino, called Home Automation With Arduino: Automate Your Home Using Open-source Hardware. He has also written a book on how to build Internet of Things projects with the Arduino, called Internet of Things with the Arduino Yun, by Packt Publishing.

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