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Robotics at Home with Raspberry Pi Pico

You're reading from   Robotics at Home with Raspberry Pi Pico Build autonomous robots with the versatile low-cost Raspberry Pi Pico controller and Python

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Product type Paperback
Published in Mar 2023
Publisher Packt
ISBN-13 9781803246079
Length 400 pages
Edition 1st Edition
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Author (1):
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Danny Staple Danny Staple
Author Profile Icon Danny Staple
Danny Staple
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Table of Contents (20) Chapters Close

Preface 1. Part 1: The Basics – Preparing for Robotics with Raspberry Pi Pico
2. Chapter 1: Planning a Robot with Raspberry Pi Pico FREE CHAPTER 3. Chapter 2: Preparing Raspberry Pi Pico 4. Chapter 3: Designing a Robot Chassis in FreeCAD 5. Chapter 4: Building a Robot around Pico 6. Chapter 5: Driving Motors with Raspberry Pi Pico 7. Part 2: Interfacing Raspberry Pi Pico with Simple Sensors and Outputs
8. Chapter 6: Measuring Movement with Encoders on Raspberry Pi Pico 9. Chapter 7: Planning and Shopping for More Devices 10. Chapter 8: Sensing Distances to Detect Objects with Pico 11. Chapter 9: Teleoperating a Raspberry Pi Pico Robot with Bluetooth LE 12. Part 3: Adding More Robotic Behaviors to Raspberry Pi Pico
13. Chapter 10: Using the PID Algorithm to Follow Walls 14. Chapter 11: Controlling Motion with Encoders on Raspberry Pi Pico 15. Chapter 12: Detecting Orientation with an IMU on Raspberry Pi Pico 16. Chapter 13: Determining Position Using Monte Carlo Localization 17. Chapter 14: Continuing Your Journey – Your Next Robot 18. Index 19. Other Books You May Enjoy

Modeling the space

The aim of a Monte Carlo system is to model or simulate a space and a robot’s location. In this section, we will learn how code for the robot will represent this space. We will also look at how a computer can be used to visualize our robot’s guesses. Monte Carlo-based behavior code checks sensor readings frequently against the model of the space, so we should represent the space on the robot to optimize this.

The role of the computer and the robot in this are shown in the following diagram:

Figure 13.4 – Visualizing with the computer

Figure 13.4 shows an overview of this system’s display and control architecture. The behavior code runs on the robot. The computer displays the state of the robot code, along with start and stop controls. The arena and state of the system all belong to the robot.

Let’s look at how to represent the arena on the robot.

Representing the arena and robot position as numbers...

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