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Hands-On Robotics Programming with C++

Hands-On Robotics Programming with C++

By : Lentin Joseph, Tavasalkar
2.5 (2)
Buy this Book
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Hands-On Robotics Programming with C++

Hands-On Robotics Programming with C++

2.5 (2)
By: Lentin Joseph, Tavasalkar
Buy this Book

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.
Table of Contents (16 chapters)
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Preface
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Preface
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Who this book is for
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What this book covers
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To get the most out of this book
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Get in touch
Free Chapter
1
Section 1: Getting Started with wiringPi on a Raspberry Pi
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Section 1: Getting Started with wiringPi on a Raspberry Pi
2
Introduction to the Raspberry Pi
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Introduction to the Raspberry Pi
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Technical requirements
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Understanding the Raspberry Pi
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Setting up a Raspberry Pi 3B+ as a desktop computer
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Connecting the Raspberry Pi 3B+ to a laptop via Wi-Fi
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Setting up the Raspberry Pi Zero W as a desktop computer
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Connecting the Raspberry Pi Zero W to a laptop via Wi-Fi
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Summary
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Questions
3
Implementing Blink with wiringPi
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Implementing Blink with wiringPi
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Technical requirements
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Installing the wiringPi library in the Raspberry Pi
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Making an LED blink
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Smart light – working with digital sensor
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Pulse Width Modulation using softPWM
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Summary
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Questions
4
Section 2: Raspberry Pi Robotics
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Section 2: Raspberry Pi Robotics
5
Programming the Robot
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Programming the Robot
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Technical requirements
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Choosing a robot chassis
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Constructing and connecting the robot
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Working with H-bridge
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Moving the robot
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Summary
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Questions
6
Building an Obstacle-Avoiding Robot
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Building an Obstacle-Avoiding Robot
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Technical requirements
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Using an ultrasonic sensor
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Using an LCD
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Building an obstacle-avoiding robot
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Summary
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Questions
7
Controlling a Robot Using a Laptop
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Controlling a Robot Using a Laptop
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Technical requirements
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Installing the ncurses library
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Controlling LEDs and a buzzer using ncurses
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Controlling a rover using a laptop keyboard
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Installing and setting up QT5
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Controlling LEDs with GUI buttons
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Controlling a rover using a laptop with QT5
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Summary
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Questions
8
Section 3: Face and Object Recognition Robot
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Section 3: Face and Object Recognition Robot
9
Accessing the RPi Camera with OpenCV
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Accessing the RPi Camera with OpenCV
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Technical requirements
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Installing OpenCV 4.0.0 on Raspberry Pi
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Enabling and connecting the RPi camera to RPi
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Capturing images and video with the RPi camera
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Reading an image using OpenCV
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Summary
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Questions
10
Building an Object-Following Robot with OpenCV
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Building an Object-Following Robot with OpenCV
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Technical requirements
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Image processing with OpenCV
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Building an object-following robot
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Summary
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Questions
11
Face Detection and Tracking Using the Haar Classifier
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Face Detection and Tracking Using the Haar Classifier
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Technical requirements
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Face detection using the Haar cascade
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Detecting the eyes and smile
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Face-tracking robot
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Summary
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Questions
12
Section 4: Smartphone-Controlled Robot
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Section 4: Smartphone-Controlled Robot
13
Building a Voice-Controlled Robot
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Building a Voice-Controlled Robot
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Technical requirements
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An introduction to App Inventor
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Creating a voice-controlled bot app
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Pairing the Android smartphone and RPi via Bluetooth
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Developing the Bluetooth program for RPi
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Summary
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Questions
14
Assessments
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Assessments
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Chapter 1: Introduction to the Raspberry Pi
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Chapter 2: Implementing Blink with wiringPi
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Chapter 3: Programming the Robot
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Chapter 4: Building an Obstacle-Avoiding Robot
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Chapter 5: Controlling a Robot Using a Laptop
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Chapter 6: Building an Object-Following Robot with OpenCV
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Chapter 7: Accessing the RPi Camera with OpenCV
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Chapter 8: Face Detection and Tracking Using the Haar Classifier
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Chapter 9: Building a Voice-Controlled Robot
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Other Books You May Enjoy
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Other Books You May Enjoy
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Building a Voice-Controlled Robot

In 2012, I wanted to create a robot that could be controlled by an Android smartphone. At that time, however, I did not know much about Android programming. To my surprise, I came across an amazing website called App Inventor (http://www.appinventor.org/), which allows users to develop Android applications by joining programming blocks in the same way as joining pieces in a puzzle.

In this final chapter, we will use the App Inventor website and learn to control our robot with an Android smartphone using our voice as an input. We will cover the following topics:

  • An introduction to App Inventor
  • Creating a voice application
  • Pairing the Android smartphone and Raspberry Pi (RPi) via Bluetooth
  • Developing the Bluetooth program for RPi

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