[arduino code examples for AS]-06 how to play MP3 file by SD Card

Code:
/*

  ESP32 SD I2S Music Player

  esp32-i2s-sd-player.ino

  Plays MP3 file from microSD card

  Uses MAX98357 I2S Amplifier Module

  Uses ESP32-audioI2S Library - https://github.com/schreibfaul1/ESP32-audioI2S

*/



// Include required libraries

#include "Arduino.h"

#include "Audio.h"

#include "SD.h"

#include "FS.h"

 

// microSD Card Reader connections

#define SD_CS         13

#define SPI_MOSI      12 

#define SPI_MISO      10

#define SPI_SCK       11

 

// I2S Connections

#define I2S_DOUT      8

#define I2S_BCLK      7

#define I2S_LRC       6

 

 // Create Audio object

Audio audio;

 

void setup() {

    

    // Set microSD Card CS as OUTPUT and set HIGH

    pinMode(SD_CS, OUTPUT);      

    digitalWrite(SD_CS, HIGH); 

    

    // Initialize SPI bus for microSD Card

    SPI.begin(SPI_SCK, SPI_MISO, SPI_MOSI);

    

    // Start Serial Port

    Serial.begin(115200);

    

    // Start microSD Card

    if(!SD.begin(SD_CS))

    {

      Serial.println("Error accessing microSD card!");

      while(true); 

    }

    

    // Setup I2S 

    audio.setPinout(I2S_BCLK, I2S_LRC, I2S_DOUT);

    

    // Set Volume

    audio.setVolume(50);

    

    // Open music file

    audio.connecttoFS(SD,"/music.mp3");

    

}

 

void loop()

{

    audio.loop();    

}