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

Making an LED blink

The very first project that we are going to create is making an LED blink. For this project, we require the following hardware components:

  • Raspberry Pi
  • 1 LED
  • Two female-to-female wires

Wiring connections

Connecting the LED to the Raspberry Pi is straightforward. Before doing this, however, let's take a closer look at the pins of the LED:

The LED contains one positive pin and one negative pin. The long pin is the positive pin, which you can connect to any data pin of the Raspberry Pi. The short pin is the negative pin, which can be connected to the ground pin of the Raspberry Pi.

Let's connect it up. First, connect the negative pin of the LED to the ground pin (physical pin number 6) of the...