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    Introduction

    Node-RED is a powerful open-source visual programming tool for building Internet of Things (IoT) applications. In this tutorial, we’ll cover what Node-RED is, how to install it, and how to use the visual interface to create a simple flow.

    What is Node-RED?

    Node-RED is an effective open-source platform for developing Internet of Things (IoT) applications that aim to make the programming part simpler.

    Node-RED is a web-based application that employs visual programming to let you link code fragments, or "nodes, " together to carry out a task. When the nodes are connected, they form flows.

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    I got my prototype manufactured from PCBWAY

    For this project and my other projects for PCB manufacturing and assembly I take help from PCBWAY, they are the best in this business and I have been never let down by their quality.

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    Why Node-RED?
    • IBM created open-source Node-RED software.
    • The Raspberry Pi flawlessly runs Node-RED.
    • Because it is a visual programming tool, a wider spectrum of users can use it.
    • Node-RED allows you to spend less time writing code and more time creating exciting things.

    Applications with Node-RED?

    Node-RED forms it easy to:

    • access the GPIOs on your RPi;
    • connect to other devices via MQTT;
    • For your projects, develop a responsive graphical user interface;
    • Interact with outside services.
    • Get information from the internet, such as stock prices, emails, and weather forecasts;
    • Organize time-based events;
    • Keeping and getting information from a database.

    Now that we are aware of Node-Red, okay. We need a physical medium to install Node-Red, and the Raspberry Pi will serve that purpose.