Problem using ESP on UART1

[Gorkde]

For some reason I cant use the lib on UART1 of an ESP32 module (Doit Devkit V1) using the Arduino IDE and get an error whose reason I dont understand:

This is the error:
c:/users/gorkde/appdata/local/arduino15/packages/esp32/tools/xtensa-esp32-elf-gcc/esp-2021r2-patch5-8.4.0/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: C:\Users\Gorkde\AppData\Local\Temp\arduino\sketches\7E5FE3F65971D37C0376085A1A8B3022\sketch\TEST.ino.cpp.o:(.literal.startup._GLOBAL__sub_I_player+0x4): undefined reference to DY::Player::Player(int, unsigned char, unsigned char)'
c:/users/gorkde/appdata/local/arduino15/packages/esp32/tools/xtensa-esp32-elf-gcc/esp-2021r2-patch5-8.4.0/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: C:\Users\Gorkde\AppData\Local\Temp\arduino\sketches\7E5FE3F65971D37C0376085A1A8B3022\sketch\TEST.ino.cpp.o: in function _GLOBAL__sub_I_player': C:\Users\Gorkde\Documents\Arduino\Sketches\TEST/TEST.ino:4: undefined reference to DY::Player::Player(int, unsigned char, unsigned char)'
collect2.exe: error: ld returned 1 exit status

exit status 1

Compilation error: exit status 1`

Here is my minimalized code:

`#include <DYPlayerESP32.h>

// Musik initialisieren
DY::Player player(1, 33, 25); // Initialise the player on UART1, pins TX: 33, RX: 25.

void setup() {
}

void loop() {
}`

And my last question:
How can I use an already initialised hardwareserial.h port as source for the player?

[Gorkde]

Solved that by using the arduino lib.

So maybe I thought wrongly before and the ESP code is only for the ESP IDE?
Then you should state that clearly so evgerybody understands!

Here is the working code:

`#include <HardwareSerial.h>
#include <DYPlayerArduino.h>

//Serielle Schnittstelle2 initialisieren
HardwareSerial SerialPort1(1); // use UART1

// Musik initialisieren
DY::Player Music(&SerialPort1);

void setup() {

// Serielle Schnittstellen initialisieren
Serial.begin(115200); // Serielle Ausgabe an
SerialPort1.begin(9600, SERIAL_8N1, 33, 25); // Serielle Schnittstelle 1 für Audio an

// Sound initialisieren
Music.begin();
Music.setCycleMode(DY::PlayMode::OneOff); // File einmal abspielen, dann stop
}

void loop() {
Music.play(); // Musik abspielen
Music.next(); // Zum nächsten Titel wechseln
}
`