EICAS, ND, CDU multiple computers

Hello,

I gonna make 737 cocpit. I gonna use Arduino and Jimms program. I have also Sim-avionics. I want share Eicas, Nd and other things to other computers. I know how do it but problem is. I want program that only show information direct FSX game. If i change ex. heading it will chance that ND. I think Sim-avionics need interface I/O card and take changes ex. heading, altitude.... from there?

Any Help???