trouble question, please help

really sad and helpless in my christmas arudino project.
my project aim is to set up the arudino, to trigging the player to my recorder.
as well as the sound play list.
however, i dont know random or any function to describe on it.
hope someone can share and give me suggestion.
thank a lof. :confused:

Are you looking for a function to select a random item to play ?
If so then the random() function would seem to be the obvious one to use. If not then please explain where you are stuck.

Keep in mind the Arduino has no awareness of your player or recorder.

YOU need to identify and implement those interfaces - then write the software that performs the functions you want, and sends the appropriate commands to the gadgets at the appropriate times.