@ rederikus
If you would like to tinker with the hardware that would be great! I honestly don’t know when I will have time to get into it.
Here is a source for RS-485 information:
http://www.bb-elec.com/Learning-Center/All-White-Papers/Serial/RS-422-and-RS-485-Applications-eBook/RS-422-RS-485-eBook-graphics-embedded.pdf
and some other useful stuff:
[attachment=0:v9prklle]RS-485.zip[/attachment:v9prklle]