Build your own Applications with Node-RED. You may think of this Node-RED App Library as a collection of recipes. Each app/recipe lists the ingredients and how to use them.
More info
Quick start by downloading our ready-to-use Node-RED flow examples. Configure your devices and publish – it really is that easy, even better, it requires no programming skills. Follow this step-by-step video which explains how to download and import. Important information to know:
- The apps are free to download and use for our customers.
- The apps run locally in your realKNX mini server, not in the cloud.
- Backup your work regularly from realKNX menu ‘More | Download flows.json’
- If an App has ‘Required nodes’, install the node(s) from realKNX Node-RED menu ‘Manage Palette | Install’
- The source code to all apps are available at github: https://github.com/proknx/node-red-lib
- We would love it if you share your Apps with the community: either create a pull request or simply email to dev@proknx.com
To filter: select a category or a technology. Or try typing “Sonos” in the input field below.

Gateway Description File for KNX all-compatible
If you have an Aragon Base or realKNX AIr with the KNX all-compatible Gateway, this post explains the format of the JSON gateway description file. It also includes a beta version of a Visual Editor Tool.

Generic Gateway
This article will explain the format and usage Generic Gateway Description File

Generic Gateway for Snips with proServ, Jung SVS and Gira X1
With this flow you can use Snips with proServ, Jung SVS and Gira X1

Heating - Boilerplate : A Universal Temperature Control Solution with Modes
Heating modes: NORMAL, PARTY, SICKDAY, WEEKEND_TRIP, AWAY, OFF_SUMMER

Heating - PID controller with PWM for control of real world processes (heating a hot tub e.g.)
This flow demonstrates how to control of a real world processes using a PID controller and Pulse Width Modulation.

Heating - Thermostat
This flow demonstrates how to implement a thermostat in Node-RED.

Learning - Calculations
This flow demonstrates how to do some calculations with the function node.

Learning - Google Home Voice Notification (input: Aux)
This flow demonstrates how to emit an voice notification to a Google Home smart speaker when the byte value of a KNX device changes.

Learning - Google Home Voice Notifications (input: 1 bit)
This flow demonstrates how to emit a voice notification to a Google Home smart speaker when the state of a binary KNX device changes.

Learning - Google Home Voice Notifications (input: 1 byte)
This flow demonstrates how to emit a voice notification to a Google Home smart speaker when the byte value of a KNX device changes.

Learning - HTTP Request control TV
This flow demonstrates how to send a HTTP request to control a TV set when a KNX device changes.

Learning - Joke: Alexa and Google infinite loop
You'll need an Alexa and GH speaker to run the "Alexa and Google infinite loop joke"

Learning - Logic AND / OR / XOR
This flow demonstrates how to use : - realknx-in - boolean logic - realknx-out

Learning - Logic Invert
This flow demonstrates how to use : - realknx-in - invert - realknx-out

Learning - Push notifications
This flow demonstrates Push notifications with Pushbullet for Android, iOS and browsers. This flow uses: - realknx-in - pushbullet

Learning - Time based logic with dusk, dawn, day and night
This flow demonstrates how to make a scene which acts differently depending on day or night. This flow uses amongst all: - Big Timer - realknx-in/out

Light - Feel Good Lights – Daylight Simulator with Philips Hue
Functions for sunrise and sunset simulator plus full daylight simulator logic.
Change wake up and sleep times easily using bigtimer node.

Light - Movie lights scene, controlled from Echo/Alexa and dashboard
This flow demonstrates how to ramp up and down the lights, as in a cinema

Network - Exchanging data with other devices using MQTT – external network
This flow demonstrates how to exchange data between two devices that are located in different networks using the MQTT protocol.

Network - Exchanging data with other devices using MQTT – local network
This flow demonstrates how to exchange data between two devices on the same network using the MQTT protocol.

Network - Set KNX Date & Time periodically
This flow sends the Date and Time periodically to the KNX bus.

Offline Voice - SmartyVox
This flow demonstrates how to implement the Smarty-Vox Action handler.

Offline Voice - Snips

Security - Alarm activation with voice: Siri, Alexa or Google Home
Voice Alarm activation in 2 steps: 1. pre-activation 2. within 10s a confirmation command

Security - Burglary alert with SONOS dog, Google Home and flashing lights.
This flow demonstrates how to enhance the burglar alarm. In case of an intrusion, the SONOS speakers will play the sound of a vicious dog and the lights will toggle on and off.

Security - Burglary Protection System with SONOS and Google Home Alerts.
The Burglary Protection system is an implementation of a classic alarm system. It also features a vicious dog on Sonos speakers.

Security - Control gate or garage door
This flow makes it possible to control its garage door (or gate) with a voice command (or button).

Security - Fire alert with SONOS, Google HOME and flashing lights
This flow demonstrates the how to enhance the alert of the users in the case of a fire. If a fire is detected, the SONOS and Google Home speakers together with the lights will alert people to evacuate.

Smart Senior Living - Automatic Stove Shut Off
Once you power on your stove, the motion sensor goes into action, watching for movement in the cooking area. If no movement is detected, it will start counting down and turn the power to the stove if nobody returns to the kitchen within that pre-set time.

Smart Senior Living - Help (I've fallen)!
realKNX can make living safer for Seniors and disabled people, that's Smart Senior Living.
Thru Google Home the caretaker can call for help, the caregiver can confirm with voice message.

Smart Senior Living - Medication Reminder
Prompts the caretaker to respond to a request if when a scheduled medication reminder.
Upon a reminder, Google Assistant will notify the resident, at which point the user must respond, “OK Google, I've taken my pills” or some variation

Smart Senior Living - Motion detection
Prompts the caretaker to respond to a request if a motion sensor in the bathroom does not sense activity in the night.
If the trigger events do not occur, Google Assistant will ask the caretaker if everything is OK.

Sound & UI - Voice Announcement with SONOS and Google text-to-speech
This flow demonstrates how to make Voice Announcements with SONOS speakers using Google TTS. Google TTS – Pros: easy setup Google TTS – Cons: robotic voice

Sound & UI - Automation UI samples (Node-RED dashboard)
Node-RED let you create dashboard user interface , this sample demonstrates: Demo of a item value, slider, weather, logical function, TTS IBM Watson

Sound & UI - SONOS controls in Automation UI
This flow demonstrates how-to control SONOS from a Automation UI /// Node-RED Dashboard.

Sound & UI - Voice Announcement with SONOS and Amazon Polly text-to-speech
This flow demonstrates how to make Voice Announcements with SONOS speakers using Amazon Polly TTS (text-to-speech) service.
Amazon Polly – Pros: The output audio is very close to human speech and with a rich choice of languages and voices.

Sound & UI - Voice Announcement with SONOS and IBM Watson text-to-speech
Voice Announcements with SONOS speakers using IBM Watson TTS (text-to-speech) service.
IBM Watson – Pros: The output audio is very close to human speech. IBM Watson – Cons: More complicated setup than Google.

Various - Presence detection: “I’m Home” with Automate flow
This flow demonstrates presence detection based on mobile phone wifi. It uses Automate which is available for Android only.
When the user’s phone enters the home Wifi network, a http POST is sent Node-RED flow.

Various - Telegram Bot to remote control realKNX
This flow demonstrates how-to use Telegram for remote connection. Telegram is a messaging app with a focus on speed and security, it’s super-fast, simple and free.
If you're more paranoid than your regular user, then Telegram got you covered.
Sorry, no matching items found.