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KNX connectivity technology complies with the requirements of the following standards:
  • ISO/IEC 14543-3 international
  • CENELEC EN 50090 and EN 13321 Europe
  • GB/T 20965 China

KNX is an open standardized communication protocol for home, commercial, and residential building automation and control systems, so devices from different manufacturers can be integrated and interoperable.

The KNX communication protocol supports wired and wireless communication with advanced features such as scene control, scheduling, and energy management. KNX devices can be programmed and configured using specialized software, allowing customized deployment of automation and control systems in lighting control, heating and HVAC network management, security system monitoring, and more.
KNX wired connectivity offers a secure and stable communication network that can be easily integrated with various devices deployed in automation and control systems.

KNX-RF wireless connectivity offers a secure and stable communication network that can be easily integrated with various devices in automation and control systems.

KNX-RF operates in the sub-GHz, unlicensed, ISM band and employs technologies like frequency hopping spread spectrum (FHSS) and channel hopping to ensure coexistence with other wireless technologies sharing this often crowded portion of the RF spectrum.


Building scalable network topologies via a communication bus to allow easy expansion and integration of new devices and systems.

Low-power mode that reduces device power consumption when not actively communicating.

Cost-effective devices with lower installation and maintenance costs.

Product Offer

With extensive experience in KNX communication, ST provides a comprehensive range of software and hardware evaluation tools to help developers build KNX devices with reduced development time and cost.

These development tools include KNX-RF transceivers, KNX software, KNX-RF communication boards, and wired and wireless KNX bridge cards to ensure interoperability with locally deployed networks.

ST also offers a large product portfolio of low-power STM32 microcontrollers, MEMS inertial modules and leading-edge environmental sensors, and machine learning inertial measurement units, enabling extremely accurate interaction with the immediate environment.