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)

Fundamentals of robotics

A mobile robot belongs to the wheeled robots category and is usually equipped with wheels or crawlers. For the sake of simplicity, in this chapter, we will develop a two-wheeled mobile robot. In fact, our robot will have three wheels but the third one will be neutral and will be used for the overall robot balance. So, the actual actuators are the two front motors and thus we call it a two-wheeled robot.

Any robot mechanism consists of actuators and links. An actuator is a motor or anything the produces thrust and torque. A link, on the other hand, is the hardware part that links the actuator with the chassis. The basic principle is very simple and inside every robot there are motors and links. In this project, we will build a two-wheel mobile robot, which consists of two actuators. In other words, our actuators are simple DC motors, which produce the necessary...