Raspberry Pi Home Automation with Arduino - Second Edition

Andrew K. Dennis

• Verlag: Packt Publishing
• Jahr: 2015
• ISBN:
  9781784399207
• Thema: Computer Science
• Thema: Hardware

Raspberry Pi Home Automation with Arduino Second Edition

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Table of Contents

Raspberry Pi Home Automation with Arduino Second Edition

Credits

About the Author

About the Reviewers

www.PacktPub.com

Support files, eBooks, discount offers, and more

Why subscribe?

Free access for Packt account holders

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Downloading the example code

Errata

Piracy

Questions

1. An Introduction to the Raspberry Pi, Arduino, and Home Automation

History and background of the Raspberry Pi

History and background of the Arduino

Raspberry Pi to Arduino shield connection bridge

Soldering

Creating software for the Arduino

What is home automation?

History of home automation

X10 – a standard is born

The dot-com boom and open source – a new set of technologies

Commercial products

Arrival of the Raspberry Pi

Summary

2. Getting Started – Setting Up Your Raspberry Pi and Arduino

The SD card – our Raspberry Pi's storage device

Preinstalled SD card versus a blank SD card

A note on Noobs

Downloading Raspbian

Setting up the SD card and installing Raspbian

Raspberry Pi SSH setup

Arduino

Installing the IDE on your Raspberry Pi

A quick guide to the Arduino IDE

Using the Arduino to Raspberry Pi connection bridge

Summary

3. Central Air and Heating Thermostat

Safety first

Introducing the thermostat

Setting up our hardware

Adding the Ethernet shield

Relays

Connecting the thermistor

Setting up our software

Thermostat software

Testing our thermostat and fan

Attaching the fan

Starting your thermostat application

Testing the JSON response

Next steps

Attaching the device to your heating system or a similar appliance

Adding a potentiometer

Adding an LCD screen

Summary

4. Temperature Storage – Setting Up a Database to Store Your Results

SSH

SQLite

Installing SQLite Version 3.x

Creating a database

A table to record our temperature

A table to record our rooms

Writing SQL queries

Creating a Python application to write to our database

Checking the results

Adding a cron job

HTSQL

Downloading HTSQL

Configuring HTSQL

Summary

5. Parcel Delivery Detector

Wiring up the parcel sensor

An introduction to resistors

Pressure sensor – force-sensing resistor

10K ohm resistor

Connecting the components to the Arduino

Writing our software

Updating the Raspberry Pi database

A web-based Python application

Setting up SMTP

Our Python application

Starting the web service

Testing our application

Installing the parcel detector

Testing the complete setup

Next steps

Upgrading from Ethernet to a wireless system

Checking the shipping details

Replacing the pressure sensor with a camera and image recognition

Summary

6. Curtain Automation – Open and Close the Curtains Based on the Ambient Light

Introduction to the Arduino bridge shield

Installing arduPi

Photoresistors

Motor shield and motors

Setting up the photoresistor

Wiring up the components

Testing the photoresistor with software

Makefiles

Setting up the motor shield

Wiring the components to the shield

Curtain control application

Pulse width modulation

Threads

Writing our code

Connecting to your blinds/curtains

Setting the timing

Attaching the hardware

Debugging problems

Next steps

Mounting the photoresistor outdoors

Adding a stepper motor

Summary

7. Water/Damp Detection – Check for Damp/Flooding in Sheds and Basements

A brief note on dampness

Damp detection system

Arduino circuit

Sketch code

Database updates

Python code

Adding a cron job

Using the humidity reading

Adding an LED alert

Blinking LED code

Expanding the LED functionality

Connecting a dehumidifier

Water detection

Summary

8. Wrapping Up

A brief review of the second edition of Raspberry Pi Home Automation with Arduino

Next steps

The prototyping Pi Plate

The wiringPi library

The Gertboard

Introduction to the Gertboard components

GPIO PCB expansion board

GPIO pins

Motor controller

The open collector drivers

Buffered I/O

Atmel ATmega microcontroller

Convertors – analog to digital and digital to analog

Creating software for the Gertboard

Ideas for future projects

Expanding the curtain automation tool to include temperature sensing

Changing the motor on the curtain automation project to a stepper motor

Switching lights on with a photoresistor

Holiday lights from LEDs

The future of home automation

3D printing

RFID chips

EEG headsets

Summary

A. References

Raspberry Pi

Raspberry Pi to Arduino bridge shield

Linux

Python

C/C++

Arduino

SQL

HTSQL

Electronics

Packt Publishing titles

Home automation technology

3D printing

Index

Raspberry Pi Home Automation with Arduino Second Edition

Copyright © 2015 Packt Publishing

All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews.

Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author nor Packt Publishing, and its dealers and distributors will be held liable for any damages caused or alleged to be caused directly or indirectly by this book.

Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information.

First published: February 2013

Second edition: February 2015

Production reference: 1200215

Published by Packt Publishing Ltd.

Livery Place

35 Livery Street

Birmingham B3 2PB, UK.

ISBN 978-1-78439-920-7

www.packtpub.com

Credits

Author

Andrew K. Dennis

Reviewers

Ed Baker

Rémy Bétus

Piotr Kula

Commissioning Editor

Akram Hussain

Acquisition Editor

Richard Brookes-Bland

Con...