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ESP32_A1S.ino
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ESP32_A1S.ino
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// found this sketch on https://www.mikrocontroller.net/topic/474383
// thanks to Michael U. (amiga)
#include "Arduino.h"
#include "WiFi.h"
#include "SPI.h"
#include "SD.h"
#include "FS.h"
#include "Wire.h"
#include "AC101.h" //https://github.com/schreibfaul1/AC101
// #include "ES8388.h" // https://github.com/maditnerd/es8388
#include "Audio.h" //https://github.com/schreibfaul1/ESP32-audioI2S
// SPI GPIOs
#define SD_CS 13
#define SPI_MOSI 15
#define SPI_MISO 2
#define SPI_SCK 14
// I2S GPIOs, the names refer on AC101, AS1 Audio Kit V2.2 2379
#define I2S_DSIN 25
#define I2S_BCLK 27
#define I2S_LRC 26
#define I2S_MCLK 0
#define I2S_DOUT 35
// I2S GPIOs, the names refer on ES8388, AS1 Audio Kit V2.2 3378
//#define I2S_DSIN 35
//#define I2S_BCLK 27
//#define I2S_LRC 25
//#define I2S_MCLK 0
//#define I2S_DOUT 26
// I2C GPIOs
#define IIC_CLK 32
#define IIC_DATA 33
// buttons
// #define BUTTON_2_PIN 13 // shared mit SPI_CS
#define BUTTON_3_PIN 19
#define BUTTON_4_PIN 23
#define BUTTON_5_PIN 18 // Stop
#define BUTTON_6_PIN 5 // Play
// amplifier enable
#define GPIO_PA_EN 21
//Switch S1: 1-OFF, 2-ON, 3-ON, 4-OFF, 5-OFF
String ssid = "xxxxxxxxx";
String password = "xxxxxxxxx";
static AC101 dac; // AC101
// ES8388 dac; // ES8388 (new board)
int volume = 40; // 0...100
Audio audio;
//#####################################################################
void setup()
{
Serial.begin(115200);
Serial.println("\r\nReset");
Serial.printf_P(PSTR("Free mem=%d\n"), ESP.getFreeHeap());
pinMode(SD_CS, OUTPUT);
digitalWrite(SD_CS, HIGH);
SPI.begin(SPI_SCK, SPI_MISO, SPI_MOSI);
SPI.setFrequency(1000000);
SD.begin(SD_CS);
WiFi.mode(WIFI_STA);
WiFi.begin(ssid.c_str(), password.c_str());
while (WiFi.status() != WL_CONNECTED)
{
Serial.print(".");
delay(100);
}
Serial.printf_P(PSTR("Connected\r\nRSSI: "));
Serial.print(WiFi.RSSI());
Serial.print(" IP: ");
Serial.println(WiFi.localIP());
Serial.printf("Connect to DAC codec... ");
while (not dac.begin(IIC_DATA, IIC_CLK))
{
Serial.printf("Failed!\n");
delay(1000);
}
Serial.printf("OK\n");
dac.SetVolumeSpeaker(volume);
dac.SetVolumeHeadphone(volume);
// ac.DumpRegisters();
// Enable amplifier
pinMode(GPIO_PA_EN, OUTPUT);
digitalWrite(GPIO_PA_EN, HIGH);
// set I2S_MasterClock
audio.i2s_mclk_pin_select(I2S_MCLK);
audio.setPinout(I2S_BCLK, I2S_LRC, I2S_DSIN);
audio.setVolume(10); // 0...21
audio.connecttoFS(SD, "/320k_test.mp3");
// audio.connecttoSD("/Banana Boat Song - Harry Belafonte.mp3");
// audio.connecttohost("http://mp3channels.webradio.antenne.de:80/oldies-but-goldies");
// audio.connecttohost("http://dg-rbb-http-dus-dtag-cdn.cast.addradio.de/rbb/antennebrandenburg/live/mp3/128/stream.mp3");
// audio.connecttospeech("Wenn die Hunde schlafen, kann der Wolf gut Schafe stehlen.", "de");
}
//-----------------------------------------------------------------------
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);
}
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);
}