Primary runtime node to send/receive telegrams, build virtual devices, and bridge non-KNX systems.

Stores KNX gateway settings (IP or FT1.2 serial) shared by all runtime nodes.

Recall, store, and learn scenes directly inside Node-RED.

Automatically replies to KNX read requests or keeps virtual datapoints in sync.

Mirrors selected group addresses into the Node-RED global context.

Live dashboard to inspect telegrams and decoded values in real time.

Watches the bus, sends alerts, and can fail over to backup gateways.

Records telegrams into ETS-friendly XML for deep troubleshooting.

Raises visual or audio alarms when monitored addresses hit critical events.

Coordinates heavy loads to prevent the main breaker from tripping.

Syncs the current date/time to the KNX bus (DPT 19.001), optionally also Date and Time objects.

Smart staircase timer with fade-out and reminder options.

Manages gate and door logic with impulse control, feedback, and interlocks.

Transforms MQTT/REST payloads into KNX telegrams.

Maps Home Assistant services to KNX group writes via flexible tables.

Controls Matter devices (lights, plugs, sensors...) from the KNX bus (BETA).

Exposes KNX group addresses as Matter devices for Alexa, Google and Apple Home (BETA).

Analyze KNX traffic, detect anomalies, and ask an LLM for troubleshooting insights.

Bridge multiple KNX Ultimate gateways via Node-RED, or run a KNXnet/IP tunneling server, using RAW telegram objects.

Filter and optionally rewrite group address and source before forwarding.

Maintains bridge credentials and polling for every Philips Hue node.

One unified node for Hue lights, plugs, scenes, controls, motion, environmental sensors, diagnostics and legacy-flow migration.

KNX-Ultimate is developed and tested on real installations, with a strong focus on reliability and long-term maintainability.

Authorized KNX logo by KNX Association*
Officially recognized for compliant KNX integrations.