Book Image

Raspberry Pi Zero W Wireless Projects

By : Vasilis Tzivaras
Book Image

Raspberry Pi Zero W Wireless Projects

By: Vasilis Tzivaras

Overview of this book

The Raspberry Pi has always been the go–to, lightweight ARM-based computer. The recent launch of the Pi Zero W has not disappointed its audience with its $10 release. "W" here stands for Wireless, denoting that the Raspberry Pi is solely focused on the recent trends for wireless tools and the relevant use cases. This is where our book—Raspberry Pi Zero W Wireless Projects—comes into its own. Each chapter will help you design and build a few DIY projects using the Raspberry Pi Zero W board. First, you will learn how to create a wireless decentralized chat service (client-client) using the Raspberry Pi's features?. Then you will make a simple two-wheel mobile robot and control it via your Android device over your local Wi-Fi network. Further, you will use the board to design a home bot that can be connected to plenty of devices in your home. The next two projects build a simple web streaming security layer using a web camera and portable speakers that will adjust the playlist according to your mood. You will also build a home server to host files and websites using the board. Towards the end, you will create free Alexa voice recognition software and an FPV Pi Camera, which can be used to monitor a system, watch a movie, spy on something, remotely control a drone, and more. By the end of this book, you will have developed the skills required to build exciting and complex projects with Raspberry Pi Zero W.
Table of Contents (11 chapters)

Sound players

Since there are many times that we are connected to our Raspberry Pi Zero W board via ssh, it is important to know how to control the volume and any possible audio from the terminal. When no Graphical User Interface or GUI is presented, we do not have so many options to control the sound volume. A good idea is to use a command called alsamixer, which allows us to easily change and have full control of the input/output sounds in our Raspberry Pi Zero W board or our Linux device. Usually, it is preinstalled in your system, but if it is not, you can always find it using the following command:

aptitude search alsa  

That way it will list your packages that you can install similar to alsa. The aptitude command is a useful command to find similar packages. Here is the result, searching for alsa:

Now, let' s use alsamixer to control the volume of your computer. You...