Book Image

Hands-On Robotics Programming with C++

By : Dinesh Tavasalkar, Lentin Joseph
Book Image

Hands-On Robotics Programming with C++

By: Dinesh Tavasalkar, Lentin Joseph

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)
Free Chapter
1
Section 1: Getting Started with wiringPi on a Raspberry Pi
4
Section 2: Raspberry Pi Robotics
8
Section 3: Face and Object Recognition Robot
12
Section 4: Smartphone-Controlled Robot

Controlling a rover using a laptop keyboard

After controlling the LEDs and the buzzer, let's write a program for controlling our rover (the robot) from our laptop:

I have kept the wiring connections the same as they were in Chapter 3, Programming the Robot:

  • The wiringPi pin numbers 0 and 2 are connected to the IN1 and IN2 pins
  • The wiringPi pin numbers 3 and 4 are connected to the IN3 and IN4 pins
  • The left motor pins are connected to the OUT1 and OUT2 pins of the motor driver
  • The right motor pins are connected to the OUT3 and OUT4 pins of the motor driver
  • Pin 6 of the Raspberry Pi is connected to the ground socket of the motor driver

Building a laptop-controlled rover program

If you have understood the previous two...