The USB -> DMX512 "Oksidizer USB2DMX" interface is a highly integrated and low cost controller.

It runs on every PC with a USB port and Windows® 98SE, ME, 2000 et XP.

The electronic schematics, the PCB drawings, the microcontroller source code, the DLL source code and the build instructions, have all been published in the September 2006 release of Elektor electronics magazine.

Technical features :

 USB 1.1 Microcontroller chip (Microchip PIC16C745)

All the electronic is fitted inside a 3 pin female XLR connector

512 DMX channels 

42 frame per second with a USB 2.0 host computer (a little bit less with a USB 1.0 host computer)

WARNING : The DMX RS-485 bus driver is not electrically isolated from the USB bus. It is recommended to use a DMX512 opto-isolator. 

Compatible with the latest release of the FreeStyler software.

Visual Basic and Visual C++ free demo application with source code downloadable for free.

UPDATE! New firmware for PIC18F2550 available! http://linxlabs.ucoz.ru/blog/usb2dmx_pic18f2550/2010-04-05-3