KNX

KNXnet/IP tunnelling to one KNX/IP gateway. Unlike most integrations, there's nothing to auto-discover on the device side - KNX group addresses are entirely project-specific, so you define each one yourself once the gateway itself is connected.

Adding a gateway

The gateway itself is auto-discoverable: KNXnet/IP's own standardized multicast search finds any gateway on your network advertising IP Tunnelling support, listed in a "Discovered" tab for a one-click connect - the same flow ESPHome/Shelly already use. Group addresses are not discovered - add each one by hand from the gateway's own detail page, giving it a group address and its KNX datapoint type (DPT).

What's supported

Any DPT decodes generically for display. Writable control is currently limited to three DPT families:

• 1.xxx - switch (on/off).
• 5.001 - percent.
• 9.xxx - 2-byte float (temperature, and similar).

Every other DPT still shows its own decoded value as a read-only sensor. Datapoints work with Dashboard cards and Automations exactly like any other integration's entities.