OK these are the fixes to DFPlayer-fullfunction.ino
//#include “Arduino.h”
//#include “SoftwareSerial.h”
void setup()
{
//mySoftwareSerial.begin(9600);
Serial1.begin(9600);…
/* if (!myDFPlayer.begin(mySoftwareSerial)) { //Use softwareSerial to communicate with mp3.
Serial.println(F(“Unable to begin:”));
Serial.println(F(“1.Please recheck the connection!”));
Serial.println(F(“2.Please insert the SD card!”));
while(true);
}
*/
if (!myDFPlayer.begin(Serial1)) { // use Serial1 to communicate with mp3.
Serial.println(F(“Unable to begin:”));
Serial.println(F(“1.Please recheck the connection!”));
Serial.println(F(“2.Please insert the SD card!”));
while(true);
}