I found an Android app "ELM327 Identifier" in Google PlayStore that tests ELM327 clone bluetooth dongles to check how many of the official ELM327 commands that will actually work on that particular dongle. I have no idea the meaning or significance of the individual commands all greek to me but just assume more is good
" We're trying to plug a hole in the universe, what are you doing ?. "
(Walter Bishop Fringe TV show)