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Raspberry Pi and MQTT Essentials

You're reading from   Raspberry Pi and MQTT Essentials A complete guide to helping you build innovative full-scale prototype projects using Raspberry Pi and MQTT protocol

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Product type Paperback
Published in Sep 2022
Publisher Packt
ISBN-13 9781803244488
Length 272 pages
Edition 1st Edition
Tools
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Author (1):
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Dhairya Parikh Dhairya Parikh
Author Profile Icon Dhairya Parikh
Dhairya Parikh
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Toc

Table of Contents (14) Chapters Close

Preface 1. Part 1:Covering the Basics
2. Chapter 1: Introduction to Raspberry Pi and MQTT FREE CHAPTER 3. Chapter 2: MQTT in Detail 4. Chapter 3: Introduction to ESP Development Boards 5. Chapter 4: Node-RED on Raspberry Pi 6. Part 2: Practical Implementation – Building Two Full-Scale Projects
7. Chapter 5: Major Project 1: IoT Weather Station 8. Chapter 6: Major Project 2: Smart Home Control Relay System 9. Part 3: How to Take Things Further – What Next?
10. Chapter 7: Taking Your MQTT Broker Global 11. Chapter 8: Project Prototype to Product – How? 12. Index 13. Other Books You May Enjoy

Mini project 2 – Controlling a NodeMCU LED from the Node-RED dashboard

The project’s aim is to control the onboard NodeMCU LED using a switch widget on our Node-RED dashboard, where we will be using MQTT as our primary communication protocol. We will proceed step by step, covering the hardware requirements, software setup, code explanation, and project demonstration.

Let's first start with the hardware requirements for this project.

Hardware requirements

This is a very simple project so the hardware requirements are quite straightforward:

  • A NodeMCU development board
  • A Raspberry Pi

Information about both these devices has been covered in detail in the previous chapters. In the later sections, device-specific instructions that need to be followed will be listed.

Software requirements

As for the software requirements, only the Raspberry Pi needs to be considered as the NodeMCU code explanation will come later.

The following should...

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