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Raspberry Pi Home Automation with Arduino - Second Edition

You're reading from  Raspberry Pi Home Automation with Arduino - Second Edition

Product type Book
Published in Feb 2015
Publisher
ISBN-13 9781784399207
Pages 148 pages
Edition 1st Edition
Languages
Author (1):
Andrew K. Dennis Andrew K. Dennis
Profile icon Andrew K. Dennis
Toc

Table of Contents (16) Chapters close

Raspberry Pi Home Automation with Arduino Second Edition
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
1. An Introduction to the Raspberry Pi, Arduino, and Home Automation 2. Getting Started – Setting Up Your Raspberry Pi and Arduino 3. Central Air and Heating Thermostat 4. Temperature Storage – Setting Up a Database to Store Your Results 5. Parcel Delivery Detector 6. Curtain Automation – Open and Close the Curtains Based on the Ambient Light 7. Water/Damp Detection – Check for Damp/Flooding in Sheds and Basements 8. Wrapping Up References Index

Safety first


In this chapter, we will be using a device plugged into the mains electricity (usually AC)—a fan. We will also be cutting the cable that connects the fan to the plug socket. This cable will be run through our relay circuit.

It is important to remind you at this point that working with mains electricity is dangerous. You should attempt the fan portion of this project and hooking it up to your Heating, Ventilation and Air Conditioning (HVAC) system only if you feel 100 percent confident in your ability to safely attach the thermostat device to the mains.

It is also important that you select the correct relays for your electrical system. For example, attempting to use a 130V AC relay on a 240V AC electrical system can result in melting your device or something worse.

Depending on your country of residence, the mains voltage can be between 110V and 240V. Before attempting this project, we recommend reading up on your electric system.

Note

Wikipedia provides an overview of mains electricity...

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