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This article focuses on "how to use Node-RED". Interested friends may wish to have a look. The method introduced in this paper is simple, fast and practical. Now let the editor take you to learn how to use Node-RED.

Node-RED is a programming tool for connecting hardware devices, API, and online services in new and interesting ways. It provides a browser-based editor that allows us to easily connect streams together using various nodes in the editing panel and deploy them to its runtime with a single click. The interface is as follows:

Browser-based process editing

Node-RED can be installed locally and access its visual orchestration interface through a browser. Secondly, we can also use a rich text editor to create JavaScript functions in the editor. The built-in library also allows us to save useful features, templates or processes for reuse. As follows: the lightweight runtime built on top of Node.js is built on Node.js, making full use of the event-driven non-blocking model. This makes it ideal for running at the network edge and in the cloud on low-cost hardware such as Raspberry Pi. With more than 225000 modules in Node's package repository, you can easily expand the scope of panel nodes to add new features. Community sharing streams created in Node-RED use JSON storage and can be easily imported and exported to share with others. The online process library allows us to share the best processes with the world. Installation and use of Node-RED installation and use is also very simple, the author here to introduce the basic installation. We need to install Nodejs on the computer first, and you can download it on the official website. Secondly, we enter the following command to download Node-RED: sudo npm install-g-- unsafe-perm node-red

The following interface shows that the installation has been successful. Last execution: node-red

You can start the Node-RED service, and we can access it by entering the following address printed by the terminal in the browser: the interface after running is as follows: at this point, I believe you have a deeper understanding of "how to use Node-RED". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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