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

Product type Paperback

Published in Mar 2023

Publisher Packt

ISBN-13 9781803246079

Length 400 pages

Edition 1st Edition

Languages

Python

Tools

Raspberry Pi

Concepts

Robotics

Author (1):

Danny Staple

View More author details

Table of Contents (20) Chapters

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

Why subscribe?

19. Other Books You May Enjoy

Preparing the robot

We have parts and rough ideas for how to mount our sensors.

Using the techniques learned in Chapter 3, Designing a Robot Chassis in FreeCAD, we can model these brackets and shelves in FreeCAD. You can also get these designs from GitHub at https://github.com/PacktPublishing/Robotics-at-Home-with-Raspberry-Pi-Pico/tree/main/ch-07.

The following image shows what this looks like in FreeCAD 3D View:

Figure 7.5 – The chassis with the sensor mounts

In the preceding figure, there is a 3D view of the robot in FreeCAD. At the rear, above the batteries, is a shelf for the Bluetooth and IMU. There are bolt holes under this in the chassis.

At the front of the figure are the two brackets for the distance sensors, with mounting holes for the sensors and slots cut out for the connection header to poke through.

Let us take a closer look at each sensor mounting design.