Reproduz arquivos mp3, m4a e wav do cartão SD via I2S com hardware externo. O decodificador HELIX-mp3 e -aac está incluído. Há também um decodificador OPUS para Fullband, um decodificador VORBIS e um decodificador FLAC. Funciona com MAX98357A (amplificador de 3 Watts com DAC), conectado três linhas (DOUT, BLCK, LRC) ao I2S. Para estéreo são necessários dois MAX98357A. AudioI2S funciona com UDA1334A (Adafruit I2S Stereo Decoder Breakout Board), PCM5102A e CS4344. Outros HW podem funcionar, mas não foram testados. Reproduz também fluxos gelados e GoogleTTS. Pode ser compilado com Arduino IDE. WIKI
# include " Arduino.h "
# include " WiFi.h "
# include " Audio.h "
# include " SD.h "
# include " FS.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;
String ssid = " ******* " ;
String password = " ******* " ;
void setup () {
pinMode (SD_CS, OUTPUT); digitalWrite (SD_CS, HIGH);
SPI. begin (SPI_SCK, SPI_MISO, SPI_MOSI);
Serial. begin ( 115200 );
SD. begin (SD_CS);
WiFi. disconnect ();
WiFi. mode (WIFI_STA);
WiFi. begin (ssid. c_str (), password. c_str ());
while (WiFi. status () != WL_CONNECTED) delay ( 1500 );
audio. setPinout (I2S_BCLK, I2S_LRC, I2S_DOUT);
audio. setVolume ( 21 ); // default 0...21
// or alternative
// audio.setVolumeSteps(64); // max 255
// audio.setVolume(63);
//
// *** radio streams ***
audio. connecttohost ( " http://stream.antennethueringen.de/live/aac-64/stream.antennethueringen.de/ " ); // aac
// audio.connecttohost("http://mcrscast.mcr.iol.pt/cidadefm"); // mp3
// audio.connecttohost("http://www.wdr.de/wdrlive/media/einslive.m3u"); // m3u
// audio.connecttohost("https://stream.srg-ssr.ch/rsp/aacp_48.asx"); // asx
// audio.connecttohost("http://tuner.classical102.com/listen.pls"); // pls
// audio.connecttohost("http://stream.radioparadise.com/flac"); // flac
// audio.connecttohost("http://stream.sing-sing-bis.org:8000/singsingFlac"); // flac (ogg)
// audio.connecttohost("http://s1.knixx.fm:5347/dein_webradio_vbr.opus"); // opus (ogg)
// audio.connecttohost("http://stream2.dancewave.online:8080/dance.ogg"); // vorbis (ogg)
// audio.connecttohost("http://26373.live.streamtheworld.com:3690/XHQQ_FMAAC/HLSTS/playlist.m3u8"); // HLS
// audio.connecttohost("http://eldoradolive02.akamaized.net/hls/live/2043453/eldorado/master.m3u8"); // HLS (ts)
// *** web files ***
// audio.connecttohost("https://github.com/schreibfaul1/ESP32-audioI2S/raw/master/additional_info/Testfiles/Pink-Panther.wav"); // wav
// audio.connecttohost("https://github.com/schreibfaul1/ESP32-audioI2S/raw/master/additional_info/Testfiles/Santiano-Wellerman.flac"); // flac
// audio.connecttohost("https://github.com/schreibfaul1/ESP32-audioI2S/raw/master/additional_info/Testfiles/Olsen-Banden.mp3"); // mp3
// audio.connecttohost("https://github.com/schreibfaul1/ESP32-audioI2S/raw/master/additional_info/Testfiles/Miss-Marple.m4a"); // m4a (aac)
// audio.connecttohost("https://github.com/schreibfaul1/ESP32-audioI2S/raw/master/additional_info/Testfiles/Collide.ogg"); // vorbis
// audio.connecttohost("https://github.com/schreibfaul1/ESP32-audioI2S/raw/master/additional_info/Testfiles/sample.opus"); // opus
// *** local files ***
// audio.connecttoFS(SD, "/test.wav"); // SD
// audio.connecttoFS(SD_MMC, "/test.wav"); // SD_MMC
// audio.connecttoFS(SPIFFS, "/test.wav"); // SPIFFS
// audio.connecttospeech("Wenn die Hunde schlafen, kann der Wolf gut Schafe stehlen.", "de"); // Google TTS
}
void loop (){
audio. loop ();
vTaskDelay ( 1 );
}
// 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);
}
void audio_showstation ( const char *info){
Serial. print ( " station " );Serial. println (info);
}
void audio_showstreamtitle ( const char *info){
Serial. print ( " streamtitle " );Serial. println (info);
}
void audio_bitrate ( const char *info){
Serial. print ( " bitrate " );Serial. println (info);
}
void audio_commercial ( const char *info){ // duration in sec
Serial. print ( " commercial " );Serial. println (info);
}
void audio_icyurl ( const char *info){ // homepage
Serial. print ( " icyurl " );Serial. println (info);
}
void audio_lasthost ( const char *info){ // stream URL played
Serial. print ( " lasthost " );Serial. println (info);
}
void audio_eof_speech ( const char *info){
Serial. print ( " eof_speech " );Serial. println (info);
}
Codec | ESP32 | PSRAM ESP32 | PSRAM ESP32-S3 | |
---|---|---|---|---|
mp3 | sim | sim | sim | |
aac | n | sim | sim | |
aacp | n | e (mono) | e (+SBR, +PS) | |
wav | sim | sim | sim | |
flac | n | sim | sim | tamanho de bloco máximo de 8192 bytes |
vórbis | n | sim | sim | <=196Kbit/s |
m4a | n | sim | sim | |
obra | n | sim | sim | apenas celta |
Tábua de ensaio Fiação Diagrama de impulso
Yellobyte desenvolveu uma placa tudo-em-um. Inclui um ESP32-S3 N8R2, 2x MAX98357 e um adaptador de cartão SD. Documentação, diagramas de circuitos e exemplos podem ser encontrados aqui: https://github.com/yellobyte/ESP32-DevBoards-Getting-Started