Untitled

#include <DFRobotDFPlayerMini.h>
#include <SoftwareSerial.h>

SoftwareSerial myPlayerSerial(10,11);
DFRobotDFPlayerMini player;

void setup() {
  pinMode(4, INPUT);
  pinMode(3, INPUT);
  pinMode(2, INPUT);
  pinMode(1, INPUT);

  Serial.begin(9600);

  myPlayerSerial.begin();

  if(player.begin(myPlayerSerial)){
    player.volume(20);
  };
}

void loop() {
  if(digitalRead(4) == HIGH ) {
    player.play(1);
  }
  if(digitalRead(3) == HIGH ) {
    player.play(2);
  }
  if(digitalRead(2) == HIGH ) {
    player.play(3);
  }
  if(digitalRead(1) == HIGH ) {
    player.play(4);
  }
}