File list (Check if you may need any files):
DFPlayer-Mini-mp3-master
........................\DFPlayer_Mini_Mp3.cpp
........................\DFPlayer_Mini_Mp3.h
........................\examples
........................\........\DFPlayer_Mini_Test
........................\........\..................\DFPlayer_Mini_Test.ino
........................\........\DFPlayer_PlayAll_SoftwareSerial
........................\........\...............................\DFPlayer_PlayAll_SoftwareSerial.ino
........................\........\DFPlayer_sample
........................\........\...............\DFPlayer_sample.ino
........................\........\DFPlayer_SoftwareSerial
........................\........\.......................\DFPlayer_SoftwareSerial.ino
........................\keywords.txt
........................\license.txt
........................\README.md