Ezrobot Bb Droid

Hi guys very new here, this is a project I want to build. my question is can I connect two controller boards one a a master and the other as slave for movement.

My idea is i want the brain of the droid to control the body, but h as to be wireless because it sphereo design. I would like to add sensors in the head to make the little droid autonomous which feeds to the body or ball to control movement..