Plug-and-play DMX to Serial (RS-232) signal converter for lighting systems.

The user needs to integrate a DMX-controlled system with an older system that uses serial commands. This is a frequent challenge in professional A/V, theater, and venue setups where legacy equipment is still in use.

Product Suggestion: A dedicated device, a 'DMX to RS-232 Smart Converter'.

Product Description: This device serves as a bridge between DMX512 lighting control systems and devices controlled via RS-232 serial commands. Key features include:

  1. DMX Input: Standard 3-pin or 5-pin XLR connector for receiving DMX signals.
  2. RS-232 Output: Standard DB9 connector or terminal block for sending serial commands.
  3. Configurable Mapping: An intuitive interface (e.g., USB connection to a PC, web interface, or on-device display with buttons) to allow users to map specific DMX channel values (or ranges) to specific RS-232 command strings. For example, DMX Channel 1 at value 255 could trigger "POWER ON\r\n" to be sent via serial.
  4. Addressable DMX Start Channel: User-configurable DMX start address for the converter.
  5. Robust Enclosure: Suitable for professional/venue environments.
  6. Power Supply: Standard external power adapter.

Target Audience: System integrators, venue technicians, theater electricians, and A/V professionals managing installations with a mix of DMX and legacy serial-controlled equipment.

Expected Benefits & Revenue Potential:

  • Solving a Niche Problem: Directly addresses a specific technical challenge faced by professionals, allowing them to integrate modern DMX control with older, often expensive, serial-controlled equipment (e.g., projectors, specific lighting fixtures, media servers, show control systems).
  • Extended Equipment Lifespan: Allows users to continue using valuable legacy equipment that is still functional but lacks DMX control, saving significant replacement costs.
  • Simplified System Integration: Centralizes control under the DMX system, streamlining operations.
  • Premium Pricing: As a specialized B2B hardware solution for a professional market, it can command a premium price (e.g., $150 - $400 per unit) compared to DIY solutions, due to its reliability, ease of use, and support.
  • Recurring Revenue (Potential): While primarily a hardware sale, there could be opportunities for paid firmware updates with new features or custom command library support for specific devices.
  • Market Demand: While niche, the problem is common enough in older or budget-constrained venues that a well-marketed product would find customers. The existence of DIY solutions (like Arduino-based ones mentioned in the comment) indicates the need, but many professionals prefer off-the-shelf, reliable products.

Origin Reddit Post

r/arduino

Converting DMX to Serial/RS-232

Posted by u/ted_anderson06/10/2025
I have a functional DMX lighting control system in my venue and I want to use it to trigger a non-DMX lighting control system. This other lighting system is controllable via serial commands.

Top Comments

u/westbamm
Did you even google DMX input to Arduino? The only gotcha is that inputting dmx is done via a serial connection and: " Most basic boards like the Uno and Nano have only one hardware serial

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