Two words hiding a new world. In a few years from now, every thing and every device you own will be connected to the internet. With the new era of IoT, a huge amount of data will be collected for input on artificially intelligent algorithms or systems. Imagine if your toaster is equipped with sensors, and know what kind of bread you are using, what time you activate it, and how many times per day you want to eat toast. This information may be useless for you, but for the big companies out there willing to spend billions and risk everything on how many toasts they should produce, it is not just something, it's a game changer. So, the Internet of Things is all the things that are connected to the internet such as your computer, your lights, your fridge, your garage door, and anything else that you are able to access through the internet.

On the other side...

Let's assume that we have a Raspberry Pi as our client and https://www.facebook.com as our server. When our client requests a web page from the server there must be some protocols, some rules that this request will be handled. With other words, there must be a specific way of transmitting and receiving data from each other. Internet Protocols (IP) are exactly the rules according to which a client and a server talk.

There are some basic IP with which the current browsers communicate with servers and get data. However, when we talk about IoT and low power hardware, we cannot keep these protocols and use them. As a result, it is important to go through some basic stuff and know the idea behind all the communications out there.

At this point, we have to connect the Raspberry Pi Zero W to the internet. To do this, we first have to understand how internet works. How everything's connected and how we will manage to plug in our Raspberry Pi. This section of the book will demonstrate how to guide for a variety of routers. Since every process is different, I will try to describe the basic idea here and hopefully you will be able to find your solution.

Firstly, in order to follow the rest of the book, you have to connect your Raspberry Pi zero to a monitor using HDMI and then do the following. Create a new folder with the name ssh at /boot folder and restart your pi. You will be prompted with a message about SSH....

Sometimes, we are against the problem of transferring data and files at and from our Raspberry Pi. SSH cannot be used for that, so the following section will describe ways that you can easily transfer files from and to your raspberry pi.

FileZilla software can be downloaded on either Windows or Linux and it is pretty simple. For Windows you can download it from https://filezilla-project.org/download.php and for Linux you can use the same link or type the following command:

sudo apt-get install filezilla

After installing this software, all you have to do is type the IP address of the Raspberry Pi, the port (which be default is 22), and the username/password which usually are pi/raspberry...

In the last section of this chapter, we will talk about security. Raspberry Pi Zero W is great but no one wants to just plug it in your router and let others control your lights, your coffee machine, and anything else you have connected there. To begin with, the truth is that you cannot be secure from anyone. This means that there are levels of security that you should consider. At this point, you should consider from whom you want to be secured. For example, there are techniques for securing your Raspberry from your family, from your friends, from anyone in your house, from typical users on the internet, from advance users on the internet, and from NSA.

Almost every router...

In this chapter, we went through some basics of networking, and saw how you can connect your Raspberry Pi over the network. We also talked about getting access over the internet, and about IoT protocols.

In the next chapter, we will start building our first project with the new Raspberry Pi Zero W board and look at more practical things using all the knowledge from the previous chapters.