This documentation relates to firmware version or later

What is CRMX™

CRMX is an acronym for Cognitive Radio MultipleXer - it is the first smart wireless system to automatically and continuously adapt to its surroundings in real time. CRMX was specifically developed to meet the demand for reliable, easy to use, and cost effective wireless lighting controls.


Available exclusively from LumenRadio, CRMXchip 24DMX512 is the world’s smallest wireless lighting control solution. Built on the latest chip technologies, CRMXchip includes everything needed for manufacturers to add a multi functional wireless DMX receiver into high volume products.

Building on years of experience in manufacturing industry leading wireless integration modules, LumenRadio’s patent pending CRMXchip is an industry first – a compact, developer friendly chip which can be integrated into products with ease. Interfaces are provided for SPI, TTL and (via external drivers) RS485 signals, including an industry first “DMX Window” functionality, which removes the need to process a full 512 slot to locate start addresses within a product. This innovation enables extremely low cost wireless-only products to be manufactured with almost no DMX processing requirements.

As with all LumenRadio receivers, CRMXchip is fully compatible with CRMX transmitters as well as transmitters from Wireless Solution running in G3, G4, G4S or G5 2.4GHz mode, enabling a single wireless component to maximize compatibility within fixtures. Manufacturers can add CRMXchip to their products easily with full OrCAD, Allegro and DXF symbol libraries available to simply drop onto existing layouts.


  • Receives CRMX2, CRMX Classic, W-DMX G3, G4, G4S and G5.

  • Supports ANSI E1.11 - DMX512-A

  • Cognitive coexistence - dynamically avoids occupied frequencies

  • DMX fidelity and frame integrity

  • DMX frame rate and frame size auto sensing

  • Fixed 5 ms end-to-end latency

  • Small footprint (QFN48) at 6 mm x 6 mm

  • Few external components are needed

  • All configuration data is stored in non-volatile memory, 20 years data retention

  • CRMXchip contains upgradeable firmware for future proofing

  • Over-the-air driver upgrades