Thought this might be interesting to some
Managed to test a standalone DMX controller with QLC+ on the Raspberry Pi. If anyone is interested, I find this to be a nice solution for programming DMX lights. QLC+ has a web console, so you can control it with any device as long as they share a network. Supposedly can handle RGB matrices too but have not tested that.
http://qlcplus.sourceforge.net/
http://qlcplus.sourceforge.net