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.

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.

Bi-directional Hue light control with dimming and scene support.

Recalls Hue scenes and mirrors their status onto KNX.

Transform Hue buttons into ready-to-use KNX events.

Exposes Tap Dial rotations and button presses for scenes or dimming.

Streams Hue motion sensor events to your KNX logic.

Aggregates MotionAware area motion from Hue Bridge Pro into KNX.

Brings Hue camera motion detection into KNX automations.

Publishes Hue ambient light readings for daylight-aware logic.

Shares temperature data from Hue sensors with the KNX bus.

Sends relative humidity from Hue environments onto KNX.

Keeps Hue door and window contact states aligned with KNX.

Controls Hue plugs and actuators with KNX feedback.

Reports available firmware updates for Hue devices.

Surfaces Hue accessory battery status on KNX.

Monitors the Hue bridge Zigbee connection quality.

Donations fund hardware tests, documentation, and ongoing maintenance. Even a small contribution helps.

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.