# Node Red

> Creates IoT and automation flows with Node-RED, visual programming for event-driven applications.

- Skill: `ssrjkk/node-red` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add ssrjkk/node-red`
- Raw SKILL.md: https://api.skillmd.com/api/skills/ssrjkk/node-red/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: ssrjkk (https://skillmd.com/u/ssrjkk)
- Updated: 2026-08-19
- Page: https://skillmd.com/skills/ssrjkk/node-red

---

# Node-RED
> Flow-based visual programming for IoT and automation.
## Quick Start
```bash
npm install -g node-red && node-red
# UI at http://localhost:1880
```
## Function Node (JavaScript)
```javascript
msg.payload = { temperature: (msg.payload.temp * 9/5) + 32, unit: "F", timestamp: Date.now() }
return msg;
```
## Flow Components
- Inject: Trigger events; Function: JS transformation; MQTT: Pub/sub; HTTP: REST endpoints; Dashboard: UI widgets
## When to Use
- Visual IoT pipelines; MQTT message processing; Home automation; API integrations
## Validation
1. Editor loads in browser; 2. Deployed flow executes; 3. Debug panel shows messages