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Node-RED: Low-code Programming for Event-Driven Applications
Node-RED is a flow-based programming tool for wiring together hardware devices, APIs, and online services as part of the Internet of Things. It provides a browser-based editor that makes it easy to wire together flows using the wide range of nodes in the palette.
JavaScript
Added on 2025年6月28日21,431
Stars3,611
ForksJavaScript
LanguageProject Introduction
Summary
Node-RED is a powerful open-source low-code programming tool designed for easily handling event-driven applications and connecting diverse systems using a visual programming approach. Built on Node.js, it enables users to wire together 'nodes' to create complex flows for data manipulation, integration, and automation.
Problem Solved
Connecting different systems, devices, and APIs together often requires significant coding effort and deep technical knowledge of multiple technologies. Node-RED simplifies this process through its visual, flow-based approach, dramatically reducing development time and complexity for integration tasks.
Core Features
Visual Programming Editor
Intuitive browser-based flow editor for easily connecting devices, services, and APIs.
Rich Palette of Nodes
A vast library of contributed nodes for connecting to various services, hardware, and protocols, easily installable via npm.
Lightweight Runtime
Lightweight runtime built on Node.js, making it suitable for deployment on low-cost hardware like Raspberry Pi as well as in the cloud.
Tech Stack
Node.js
JavaScript
HTML
CSS
npm
Use Cases
Node-RED's flexibility makes it suitable for a variety of use cases involving connecting systems and automating tasks based on events:
Home Automation
Details
Connect various smart home devices using protocols like MQTT, automate tasks based on sensor readings, and integrate with voice assistants or web services.
User Value
Simplifies complex home automation setups and allows for custom logic beyond standard off-the-shelf solutions.
Data Processing & Integration
Details
Build data processing pipelines by receiving data from devices or APIs, performing transformations, and sending data to databases, dashboards, or other services.
User Value
Enables rapid development of data ingestion, transformation, and routing logic without complex coding.
Prototyping Web Services
Details
Create simple web services, APIs, or dashboards by wiring together HTTP input nodes, function nodes, and output nodes.
User Value
Accelerates the development of proof-of-concept web services and interfaces.
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