Node Red

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Secure Home Automation Controls via a Telegram Bot

Shows how to create a secure set of home automation controls without exposing Node-RED to the Internet. It uses a Telegram bot with a number of pre-defined commands.

📖 Kb | 📎 Development | 🔖 node-red

Understanding the Node-RED Runtime API

Node-RED exposes an extensive API at runtime. While most of this is not available within your flows, much of it is available to custom nodes. Unfortunately, documentation for the API lags behind development. This page documents some of the key things I’ve learned about the API, what it does and how it works.

📖 Kb | 📎 Development | 🔖 node-red

Node-RED Dashboard Template Examples (AngularJS)

Some examples of using AngularJS with the Node-RED Dashboard. Not all features of Angular are accessible via the Dashboard.

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Making Node-RED available over the Internet

There are already too many people putting up insecure services over the Internet. Please don’t add to this problem. This article explains a simple way to get some level of connectivity to Node-RED over the Internet without security issues. It also explains some of the wider issues and where to go for more details.

📖 Kb | 📎 Development | 🔖 node-red

How to use the ACE editor in the Function node

The ACE editor is used in the function node to help you create well-formed JavaScript. However, there are now a number of different versions of JavaScript and it is sometimes helpful to use slightly different styles of coding to the defaults.

📖 Kb | 📎 Development | 🔖 node-red

How to extract a substring from the msg object

Node-RED passes a msg object between node instances in a flow. It is common to need to extract a sub-string and there are multiple ways to achieve this. Here are some simeple examples.

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Node-RED - Courses and Tutorials

A list of some tutorials and courses for learning Node-RED and Node.JS, maybe some web stuff too.

📖 Kb | 📎 Development | 🔖 node-red

Node-RED - debugging flows

Some hints for debugging Node-RED flows

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Node-RED - How to use the Visual Studio Code debugger

Using the Visual Studio Code debugger to debug Node-RED issues

Mosquitto MQTT Server on a Raspberry Pi

To access an MQTT broker direct from the browser, you need websockets support. On a Raspberry Pi, this used to require a custom build from source. That is no longer required. You can now install direct from the repository and add a simple config change. This article explains the details.