# Node-RED

Node-RED is an **open-source, flow-based tool** that lets you connect devices, APIs, and services with a simple drag-and-drop interface. It’s widely used for **home automation, IoT projects, data processing, and dashboards**, making it easy to integrate hardware and software without heavy coding.

This add-on is optional and not installed by default. To use it, go to the **Add-On** section and click **Install** to set up the service.

<figure><img src="/files/heOQWn0BW02OCJ73A25R" alt=""><figcaption></figcaption></figure>

Please wait 5-8 minutes for the installation to complete. Once installed, check if the service is enbled. If not, click the switch next to **Enable** to activate the service.&#x20;

<figure><img src="/files/hbXQN2NCvgqbxKyg8Zhs" alt=""><figcaption></figcaption></figure>

After the service is enabled, you can access it from a browser on the WLAN using the URL `http://IP:1880` (the exact address will be shown on the add-on settings page).

<figure><img src="/files/sJB0klnqwYm7nek5u2i1" alt=""><figcaption></figcaption></figure>


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://kb.linknlink.com/isg/using-isg/add-ons/optional-utility-add-ons/node-red.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
