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Hands-On Robotics Programming with C++

By : Lentin Joseph, Tavasalkar

2.5 (2)

Hands-On Robotics Programming with C++

2.5 (2)

By: Lentin Joseph, Tavasalkar

Overview of this book

C++ is one of the most popular legacy programming languages for robotics, and a combination of C++ and robotics hardware is used in many leading industries. This book will bridge the gap between Raspberry Pi and C/C++ programming and enable you to develop applications for Raspberry Pi. You'll even be able to implement C programs in Raspberry Pi with the WiringPi library. The book will guide you through developing a fully functional car robot and writing programs to move it in different directions. You’ll then create an obstacle-avoiding robot using an ultrasonic sensor. In addition to this, you’ll find out how to control the robot wirelessly using your PC or Mac. This book will also help you work with object detection and tracking using OpenCV, and guide you through exploring face detection techniques. Finally, you will create an Android app and control the robot wirelessly with an Android smartphone. By the end of this book, you will have gained experience in developing a robot using Raspberry Pi and C/C++ programming.

Preface

Preface

Who this book is for

What this book covers

To get the most out of this book

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Free Chapter

Section 1: Getting Started with wiringPi on a Raspberry Pi

Section 1: Getting Started with wiringPi on a Raspberry Pi

Introduction to the Raspberry Pi

Introduction to the Raspberry Pi

Technical requirements

Understanding the Raspberry Pi

Setting up a Raspberry Pi 3B+ as a desktop computer

Connecting the Raspberry Pi 3B+ to a laptop via Wi-Fi

Setting up the Raspberry Pi Zero W as a desktop computer

Connecting the Raspberry Pi Zero W to a laptop via Wi-Fi

Summary

Questions

Implementing Blink with wiringPi

Implementing Blink with wiringPi

Technical requirements

Installing the wiringPi library in the Raspberry Pi

Making an LED blink

Smart light – working with digital sensor

Pulse Width Modulation using softPWM

Summary

Questions

Section 2: Raspberry Pi Robotics

Section 2: Raspberry Pi Robotics

Programming the Robot

Programming the Robot

Technical requirements

Choosing a robot chassis

Constructing and connecting the robot

Working with H-bridge

Moving the robot

Summary

Questions

Building an Obstacle-Avoiding Robot

Building an Obstacle-Avoiding Robot

Technical requirements

Using an ultrasonic sensor

Using an LCD

Building an obstacle-avoiding robot

Summary

Questions

Controlling a Robot Using a Laptop

Controlling a Robot Using a Laptop

Technical requirements

Installing the ncurses library

Controlling LEDs and a buzzer using ncurses

Controlling a rover using a laptop keyboard

Installing and setting up QT5

Controlling LEDs with GUI buttons

Controlling a rover using a laptop with QT5

Summary

Questions

Section 3: Face and Object Recognition Robot

Section 3: Face and Object Recognition Robot

Accessing the RPi Camera with OpenCV

Accessing the RPi Camera with OpenCV

Technical requirements

Installing OpenCV 4.0.0 on Raspberry Pi

Enabling and connecting the RPi camera to RPi

Capturing images and video with the RPi camera

Reading an image using OpenCV

Summary

Questions

Building an Object-Following Robot with OpenCV

Building an Object-Following Robot with OpenCV

Technical requirements

Image processing with OpenCV

Building an object-following robot

Summary

Questions

Face Detection and Tracking Using the Haar Classifier

Face Detection and Tracking Using the Haar Classifier

Technical requirements

Face detection using the Haar cascade

Detecting the eyes and smile

Face-tracking robot

Summary

Questions

Section 4: Smartphone-Controlled Robot

Section 4: Smartphone-Controlled Robot

Building a Voice-Controlled Robot

Building a Voice-Controlled Robot

Technical requirements

An introduction to App Inventor

Creating a voice-controlled bot app

Pairing the Android smartphone and RPi via Bluetooth

Developing the Bluetooth program for RPi

Summary

Questions

Assessments

Assessments

Chapter 1: Introduction to the Raspberry Pi

Chapter 2: Implementing Blink with wiringPi

Chapter 3: Programming the Robot

Chapter 4: Building an Obstacle-Avoiding Robot

Chapter 5: Controlling a Robot Using a Laptop

Chapter 6: Building an Object-Following Robot with OpenCV

Chapter 7: Accessing the RPi Camera with OpenCV

Chapter 8: Face Detection and Tracking Using the Haar Classifier

Chapter 9: Building a Voice-Controlled Robot

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Understanding the Raspberry Pi

Raspberry Pi is a credit card sized, Linux-based minicomputer invented by the Raspberry Pi Foundation in 2012. The first Raspberry Pi model was called the Raspberry Pi 1B, which was then followed by the Model A. Raspberry Pi boards were initially intended to promote computer science programs in schools. However, their inexpensive hardware and free, open source software, quickly made the Raspberry Pi popular among hackers and robotics developers.

The Raspberry Pi can be used as a fully functional computer. It can be used to perform tasks such as browsing the internet, playing games, and watching HD videos, as well as creating Excel and Word documents. But what really differentiates it from a normal computer is its programmable GPIO pins. The Raspberry Pi consists of 40 digital I/O GPIO pins that can be programmed.

In simple terms, the Raspberry Pi...

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