MQTT to KNX gateway

Need to connect MQTT and KNX? The Weble WBox routes MQTT → KNX natively: one gateway speaks both protocols and maps data points in real time — no PC, no middleware, no cloud dependency.

The protocols

Typical use case

A KNX installation is rich in live data — temperatures, presence, energy, blind and light states — but locked inside the bus. To use it in an IoT dashboard, a Node-RED flow, Grafana or a cloud platform, the WBox publishes KNX states to an MQTT broker and writes commands back. You get building data in your analytics or automation stack, plus remote control, without exposing the KNX bus or installing a PC supervisor on site.

How the WBox bridges MQTT and KNX

Activate the KNX and MQTT drivers. Each KNX group address maps to an MQTT topic (e.g. site/floor2/room5/temperature); DPT values are decoded into clean JSON payloads and state is published as retained messages, so new subscribers get the last value immediately. Messages on command topics are written back to the bus. A JavaScript step can shape the payload, add units or a timestamp, or fan one source out to several topics — all handled locally on the gateway.

← All routes