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.pio/libdeps/esp32-s3-devkitc-1/ESP32-audioI2S/examples/SdFat/SdFat_example.ino

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+//**********************************************************************************************************
+//*    audioI2S-- I2S audiodecoder for ESP32,  SdFat example                                                             *
+//**********************************************************************************************************
+//
+// first release on 05/2020
+// updated on Sep. 27, 2021
+/*
+
+ ⒈ install SdFat V2 from https://github.com/greiman/SdFat
+ ⒉ activate "SDFATFS_USED"                   in Audio.h
+ ⒊ activate "#define USE_UTF8_LONG_NAMES 1"  in SdFatConfig.h
+
+*/
+
+#include "Arduino.h"
+#include "Audio.h"
+#include "SPI.h"
+
+// Digital I/O used
+#define SD_CS          5
+#define SPI_MOSI      23
+#define SPI_MISO      19
+#define SPI_SCK       18
+#define I2S_DOUT      25
+#define I2S_BCLK      27
+#define I2S_LRC       26
+
+Audio audio;
+
+void setup() {
+    pinMode(SD_CS, OUTPUT);      digitalWrite(SD_CS, HIGH);
+    SPI.begin(SPI_SCK, SPI_MISO, SPI_MOSI);
+    SPI.setFrequency(1000000);
+    Serial.begin(115200);
+    SD.begin(SD_CS);
+
+    audio.setPinout(I2S_BCLK, I2S_LRC, I2S_DOUT);
+    audio.setVolume(12); // 0...21
+
+//    audio.connecttoFS(SD, "test.mp3");
+    audio.connecttoFS(SD, "良い一日私の友達.mp3");
+}
+
+void loop()
+{
+    audio.loop();
+}
+
+// optional
+void audio_info(const char *info){
+    Serial.print("info        "); Serial.println(info);
+}
+void audio_id3data(const char *info){  //id3 metadata
+    Serial.print("id3data     ");Serial.println(info);
+}
+void audio_eof_mp3(const char *info){  //end of file
+    Serial.print("eof_mp3     ");Serial.println(info);
+}