What kind of class you are talking, most of the time, we use MCU for real time stuff and a generic computer for Heavy computing stuff, they can communicate through whatever bus they want (Serial, USB or even wireless like bluetooth). E
Something that needs to be light and runs on a traditional navigation stack (no AI) would be served well by an RPI.
Something that needs to be light and runs on a traditional navigation stack (no AI) would be served well by an RPI.