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Learn Robotics Programming

Learn Robotics Programming

By : Danny Staple
3.7 (22)
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Learn Robotics Programming

Learn Robotics Programming

3.7 (22)
By: Danny Staple

Overview of this book

We live in an age where the most complex or repetitive tasks are automated. Smart robots have the potential to revolutionize how we perform all kinds of tasks with high accuracy and efficiency. With this second edition of Learn Robotics Programming, you'll see how a combination of the Raspberry Pi and Python can be a great starting point for robot programming. The book starts by introducing you to the basic structure of a robot and shows you how to design, build, and program it. As you make your way through the book, you'll add different outputs and sensors, learn robot building skills, and write code to add autonomous behavior using sensors and a camera. You'll also be able to upgrade your robot with Wi-Fi connectivity to control it using a smartphone. Finally, you'll understand how you can apply the skills that you've learned to visualize, lay out, build, and code your future robot building projects. By the end of this book, you'll have built an interesting robot that can perform basic artificial intelligence operations and be well versed in programming robots and creating complex robotics projects using what you've learned.
Table of Contents (25 chapters)
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1
Section 1: The Basics – Preparing for Robotics
7
Section 2: Building an Autonomous Robot – Connecting Sensors and Motors to a Raspberry Pi
15
Section 3: Hearing and Seeing – Giving a Robot Intelligent Sensors
21
Section 4: Taking Robotics Further

Choosing between optical and ultrasonic sensors

Before we start to use distance sensors, let's find out what these sensors actually are, how they work, and some of the different types available.

The most common ways in which to sense distance are to use ultrasound or light. The principle of both of these mechanisms is to fire off a pulse and then sense its reflected return, using either its timing or angle to measure a distance, as can be seen in the following diagram:

Figure 8.1 – Using pulse timing in a distance sensor

We focus on the sensors that measure the response time, otherwise known as the time of flight. Figure 8.1 shows how these sensors use reflection time.

With this basic understanding of how sensors work, we'll now take a closer look at optical sensors and ultrasonic sensors.

Optical sensors

Light-based sensors, like the one in Figure 8.2, use infrared laser light that we cannot see. These devices can be tiny; however...

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