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

Using the robot library to programmatically control your robot


First, install the libraries to support the motor control board, described in the second chapter. Since this robot uses the same control as the wheeled vehicle, you'll use the same code for the simplified library that you used as a library in the second chapter, as shown here:

The following is the simple code to exercise this program using keystrokes on Raspberry Pi:

Run this program by typing sudo python input.py. If you get an error message telling you that the program does not know about rr=RRB2(), you'll need to copy the rrb2.py file from your installation of the libraries for the motor controller board in the directory rrb2-1.1.

Now that you can control your wheeled robot from the console, let's connect it wirelessly to allow remote control.