Book Image

Raspberry Pi Robotic Blueprints

Book Image

Raspberry Pi Robotic Blueprints

Overview of this book

The Raspberry Pi is a series of credit card-sized single-board computers developed in the UK by the Raspberry Pi Foundation with the intention of promoting the teaching of basic computer science in schools. The Raspberry Pi is known as a tiny computer built on a single circuit board. It runs a Linux operating system, and has connection ports for various peripherals so that it can be hooked up to sensors, motors, cameras, and more. Raspberry Pi has been hugely popular among hardware hobbyists for various projects, including robotics. This book gives you an insight into implementing several creative projects using the peripherals provided by Raspberry Pi. To start, we’ll walk through the basic robotics concepts that the world of Raspberry Pi offers us, implementing wireless communication to control your robot from a distance. Next, we demonstrate how to build a sensible and a visionary robot, maximizing the use of sensors and step controllers. After that, we focus on building a wheeled robot that can draw and play hockey. To finish with a bang, we’ll build an autonomous hexcopter, that is, a flying robot controlled by Raspberry Pi. By the end of this book, you will be a maestro in applying an array of different technologies to create almost any imaginable robot.
Table of Contents (14 chapters)
Raspberry Pi Robotic Blueprints
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Dynamic path planning for your robot


Now that you can see the barriers and also know the direction, you'll want to do dynamic path planning. Dynamic path planning simply means not having the knowledge of all the possible barriers before encountering them. Your robot will have to decide how to proceed while it is in motion. This can be a complex topic but there are some basic concepts that you can understand and apply as you instruct your robot to move around in its surrounding. Let's first address the problem in which you know where you want to go and need to execute a path without barriers and then add the barriers to the path.

Basic path planning

In order to learn about the dynamic path planning, which is planning a path with potential unknown barriers, you need a framework to understand where your robot is and to determine the location of the goal. One of the common framework is an x-y grid. The following is the diagram of such a grid:

There are three key points on this grid that you'll...