Chapter 1, Getting Started with Raspberry Pi Zero, describes the procedure to set up the Raspberry Pi and the Arduino board, and how to communicate among the devices. We will install and set up the operating system, connect our Pi to the network, and access it remotely. We'll also secure our Pi and make sure it can keep the right time.

Chapter 2, Connecting Things to the Raspberry Pi Zero, shows how to connect signals to the Raspberry Pi Zero and Arduino. It explores the GPIO port and the various interfaces it features. We'll look at the various things we can connect to the Raspberry Pi using the GPIO.

Chapter 3, Connecting sensors - Measure the Real Things, shows how to implement the sensors for detecting different kinds of signal, for security systems, flow current for energy consumption, detecting some risk in the home, implementing  a gas sensor, flow water sensor to measure water volume, and will also show how to make a security system that will control entrance to the home with a fingerprint sensor.

Chapter 4, Control-connected devices, shows how to control your Arduino board, using modules of communication in a networking area from the Raspberry Pi Zero in a central interface dashboard.

Chapter 5, Adding a Webcam to Monitor Your Security System, shows how to configure a webcam connected to your board to monitor your security system for the Internet of Things.

Chapter 6, Building a Web Monitor and Controlling Devices from a Dashboard, shows how to set up a system to monitor your security system using web services. Integrating the Raspberry Pi Zero with Arduino to build a complete system connected-devices and monitor.

Chapter 7, Building a Spy Police with the Internet of Things dashboard, shows how to make different mini home domotics projects and how to connect web services and monitor your security system using the Internet of Things.

Chapter 8, Monitor and Control your devices from a Smart Phone, explains how to develop an app for Smart Phone using Android Studio and APP inventor, and control your Arduino board and the Raspberry Pi Zero.

Chapter 9, Putting It All Together, shows how to put everything together, all the parts of the project, the electronics field, software configurations, and power supplies.

You’ll need the following software:

In the first chapters, we explain all the basics so you will have everything configured and will be able to use the Raspberry Pi Zero without any problems, so you can use it for the projects in this book. We will use some basic components, such as sensors, and move to more complex components in the rest of the book.

On the software side, it is good if you actually have some existing programming skills, especially in JavaScript and in the Node.js framework. However, I will explain all the parts of each software piece of this book, so even if you don't have good programming skills in JavaScript you will be able to follow along.

This book is for all the people who want to automate their homes and make them smarter, while at the same time having complete control of what they are doing. If that's your case, you will learn everything there is to learn in this book about how to use the amazing Raspberry Pi Zero board to control your projects.

This book is also for makers who have played in the past with other development boards, such as Arduino. If that's the case, you will learn how to use the power of the Raspberry Pi platform to build smart homes. You will also learn how to create projects that can easily be done with other platforms, such as creating a wireless security camera with the Pi Zero.

In this book, you will find a number of text styles that distinguish between different kinds of information. Here are some examples of these styles and an explanation of their meaning.

Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "Extract 2015-09-24-raspbian-jessie.img to your Home folder." 

A block of code is set as follows:

# passwd
root@raspberrypi:/home/pi# passwd
Enter new UNIX password:
Retype new UNIX password:
passwd: password updated successfully
        root@raspberrypi:/home/pi#

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

[default]
exten => s,1,Dial(Zap/1|30)
exten => s,2,Voicemail(u100)
exten => s,102,Voicemail(b100)
exten => i,1,Voicemail(s0)

Any command-line input or output is written as follows:

        sudo npm install express request

New terms and important words are shown in bold. Words that you see on the screen, for example, in menus or dialog boxes, appear in the text like this:

"You can now just click on Stream to access the live stream from the camera."

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