Hi,
I am looking at making a moving head light using arduino, My big question is what chip do i need to use for the RS-485 conversion, I can get the MAX485 but I am unsure whether i need to have a full duplex chip for using RDM to get light status. Any ideas?
You indeed need full duplex for RDM, so that would mean that you'd for example could use two 485's.
But the real question is if you'd really need RDM... From my point of view, RDM is only an extra, and not very necessary for "normal" use...
Sure, RDM is and extra, but I'd like to be able to use it in a project instead of just a Dumb DMX system, makes for more complexity and functionality.