Building and Testing a USB to DMX interface

There are quite a few ways to get or make a USB to DMX (RS-485) interface. In this video I "kluge" together a simple interface and use it to test the lightbar I fixed in a previous video. I also give a quick overview of some free DMX software you can run on your computer. See the links below for more info on DMX and QLC+ software.
DMX512:
en.wikipedia.org/wiki/DMX512
QLC+ Software:
www.qlcplus.org/
• DJ Lighting - Getting ...
QLC+ Fixture Editor:
www.qlcplus.org/docs/html_en_...
• Creating Custom Fixtur...