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Raspberry Pi and Node-RED: A perfect match for IoT projects


How to Download Node-RED for Raspberry Pi




Node-RED is a powerful open-source tool for visual programming to build Internet of Things (IoT) applications. It provides a browser-based editor that makes it easy to wire together flows using the wide range of nodes in the palette that can be deployed to its runtime in a single-click.




download node red for raspberry pi


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If you have a Raspberry Pi, you can use Node-RED to create and run IoT applications on the edge of the network, taking advantage of its low-cost hardware, event-driven model, and large ecosystem of modules. In this article, we'll show you how to download and install Node-RED on your Raspberry Pi, and how to create your first flow.


Prerequisites




Before you start, make sure you have the following:


  • A Raspberry Pi with Raspberry Pi OS installed. You can use any model of Raspberry Pi, but we recommend using Raspberry Pi OS Bullseye as the currently supported version.



  • A power supply, a micro SD card, a keyboard, a mouse, and a monitor for your Raspberry Pi. Alternatively, you can use SSH or VNC to access your Raspberry Pi remotely.



  • An internet connection for your Raspberry Pi. You can use Ethernet or Wi-Fi.



Installation Steps




The easiest way to install Node-RED on your Raspberry Pi is to use the install script provided by Node-RED. This script will install Node.js, npm, and Node-RED as global modules, along with some useful Pi-specific nodes. It will also set up Node-RED to run as a service that can be started and stopped easily.


To run the install script, open a terminal window on your Raspberry Pi and enter the following command:


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