You're reading from Internet of Things Programming Projects Build exciting IoT projects using Raspberry Pi 5, Raspberry Pi Pico, and Python

Product type Paperback

Published in Jun 2024

Publisher Packt

ISBN-13 9781835082959

Length 458 pages

Edition 2nd Edition

Languages

Python

Tools

Raspberry Pi

Concepts

IoT Development

Author (1):

Colin Dow

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Table of Contents (21) Chapters

Preface

1. Part 1: Setting Up the Raspberry Pi for IoT Development FREE CHAPTER

2. Chapter 1: Understanding the Raspberry Pi

3. Chapter 2: Harnessing Web Services with the Raspberry Pi

4. Chapter 3: Building an IoT Weather Indicator

5. Chapter 4: Building an IoT Information Display

6. Part 2: Building an IoT Home Security Dashboard

7. Chapter 5: Exploring the GPIO

8. Chapter 6: Building an IoT Alarm Module

9. Chapter 7: Building an IoT Button

10. Chapter 8: Creating an IoT Alarm Dashboard

11. Part 3: Creating a LoRa-Enabled IoT Monitoring Station

12. Chapter 9: Understanding LoRa

13. Chapter 10: Integrating LoRa with the Internet

14. Part 4: Building an IoT Robot Car

15. Chapter 11: Introducing ROS

16. Chapter 12: Creating an IoT Joystick

17. Chapter 13: Introducing Advanced Robotic Eyes for Security (A.R.E.S.)

18. Chapter 14: Adding Computer Vision to A.R.E.S.

19. Index

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Understanding our IoT joystick application

In Chapter 7, we developed a device to remotely arm an IoT alarm system. Building on this experience, our application in this chapter involves creating an IoT joystick using a Raspberry Pi Pico WH. This joystick will remotely control a ROS TurtleSim robot and thus display a practical application of IoT in robotics.

We will use the Raspberry Pi Pico WH for our design given Wi-Fi capability and pre-soldered pin headers. In our application, we’ll integrate a PS2 joystick module, an LED, and an arcade-style pushbutton with a Raspberry Pi Pico WH. The Raspberry Pi Pico WH will be programmed to transmit MQTT messages that reflect the joystick’s movements, the status of the joystick button, and the arcade button’s state. Additionally, the LED will serve a dual-purpose role, indicating both the Wi-Fi connectivity status and the MQTT connection status sequentially: