This listing page is for project that don't need a separe wiki page (yet).
USB to DMX hardware
Using same protocol as Enttec DMX USB Pro http://doityourselfchristmas.com/forums/showthread.php?t=7009 schematic and source code available to board members
Many notes and designs on http://members.westnet.com.au/rowanmac/
Software to microcontrollers to receive or transmit DMX and control LED's, dimmers etc. and FTDI chip dongles: http://www.hoelscher-hi.de/hendrik/english/ressources.htm
Instructions to build a dongle Input is command data from a RS232 port, a PIC with assembler code is used to clock out DMX.