How to get ESP8266 to communicate with DF Player Mini [closed] - audio

Question

Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers.
This question was caused by a typo or a problem that can no longer be reproduced. While similar questions may be on-topic here, this one was resolved in a way less likely to help future readers.
Closed 5 days ago.
Improve this question
Im using ESP8266 NodeMCU and im trying to send hex data via serial to DFPlayer Mini using the SoftwareSerial and DFRobotDFPlayerMini library. No matter what pin I use I keep getting errors.
#include "Arduino.h"
#include "SoftwareSerial.h"
#include "DFRobotDFPlayerMini.h"
SoftwareSerial mySoftwareSerial(0, 2); // RX, TX
DFRobotDFPlayerMini myDFPlayer;
void setup()
{
mySoftwareSerial.begin(9600);
Serial.begin(115200);
Serial.println();
Serial.println(F("DFRobot DFPlayer Mini Demo"));
Serial.println(F("Initializing DFPlayer ... (May take 3~5 seconds)"));
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){
delay(0); // Code to compatible with ESP8266 watch dog.
}
}
Serial.println(F("DFPlayer Mini online."));
myDFPlayer.volume(10); //Set volume value. From 0 to 30
myDFPlayer.play(1); //Play the first mp3
}
void loop()
{
}
and this is the results i get
DFRobot DFPlayer Mini Demo
Initializing DFPlayer ... (May take 3~5 seconds)
Unable to begin:
1.Please recheck the connection!
2.Please insert the SD card!
and I've also tried changing the software serial library to ESPSoftwareserial. and I've tried different pins. I've tried other boards. I've tried using hardware serial instead. I've tried using this sketch with a different library
// this example will play a track and then
// every five seconds play another track
//
// it expects the sd card to contain these three mp3 files
// but doesn't care whats in them
//
// sd:/mp3/0001.mp3
// sd:/mp3/0002.mp3
// sd:/mp3/0003.mp3
#include <DFMiniMp3.h>
#include <SoftwareSerial.h>
// forward declare the notify class, just the name
//
class Mp3Notify;
// define a handy type using serial and our notify class
//
//typedef DFMiniMp3<HardwareSerial, Mp3Notify> DfMp3;
// instance a DfMp3 object,
//
//DfMp3 dfmp3(Serial1);
// Some arduino boards only have one hardware serial port, so a software serial port is needed instead.
// comment out the above definitions and use these
SoftwareSerial secondarySerial(14, 12); // RX, TX
typedef DFMiniMp3<SoftwareSerial, Mp3Notify> DfMp3;
DfMp3 dfmp3(secondarySerial);
// implement a notification class,
// its member methods will get called
//
class Mp3Notify
{
public:
static void PrintlnSourceAction(DfMp3_PlaySources source, const char* action)
{
if (source & DfMp3_PlaySources_Sd)
{
Serial.print("SD Card, ");
}
if (source & DfMp3_PlaySources_Usb)
{
Serial.print("USB Disk, ");
}
if (source & DfMp3_PlaySources_Flash)
{
Serial.print("Flash, ");
}
Serial.println(action);
}
static void OnError([[maybe_unused]] DfMp3& mp3, uint16_t errorCode)
{
// see DfMp3_Error for code meaning
Serial.println();
Serial.print("Com Error ");
Serial.println(errorCode);
}
static void OnPlayFinished([[maybe_unused]] DfMp3& mp3, [[maybe_unused]] DfMp3_PlaySources source, uint16_t track)
{
Serial.print("Play finished for #");
Serial.println(track);
// start next track
track += 1;
// this example will just start back over with 1 after track 3
if (track > 3)
{
track = 1;
}
dfmp3.playMp3FolderTrack(track); // sd:/mp3/0001.mp3, sd:/mp3/0002.mp3, sd:/mp3/0003.mp3
}
static void OnPlaySourceOnline([[maybe_unused]] DfMp3& mp3, DfMp3_PlaySources source)
{
PrintlnSourceAction(source, "online");
}
static void OnPlaySourceInserted([[maybe_unused]] DfMp3& mp3, DfMp3_PlaySources source)
{
PrintlnSourceAction(source, "inserted");
}
static void OnPlaySourceRemoved([[maybe_unused]] DfMp3& mp3, DfMp3_PlaySources source)
{
PrintlnSourceAction(source, "removed");
}
};
void setup()
{
Serial.begin(115200);
Serial.println("initializing...");
dfmp3.begin();
uint16_t volume = dfmp3.getVolume();
Serial.print("volume ");
Serial.println(volume);
dfmp3.setVolume(24);
uint16_t count = dfmp3.getTotalTrackCount(DfMp3_PlaySource_Sd);
Serial.print("files ");
Serial.println(count);
Serial.println("starting...");
// start the first track playing
dfmp3.playMp3FolderTrack(1); // sd:/mp3/0001.mp3
}
void waitMilliseconds(uint16_t msWait)
{
uint32_t start = millis();
while ((millis() - start) < msWait)
{
// if you have loops with delays, its important to
// call dfmp3.loop() periodically so it allows for notifications
// to be handled without interrupts
dfmp3.loop();
delay(1);
}
}
void loop()
{
waitMilliseconds(100);
}
this one is with a different library and differnt TX and RX pins.
and this is the error I get.
initializing...
Com Error 3
volume 0
Com Error 3
files 2
starting...
Any help with solving this would be greatly appreciated.