#include "Arduino.h"
#include "AudioTools.h"
I2SStream in;
I2SStream out;
StreamCopy copier(out, in);
void setup() {
 Serial.begin(115200);
 AudioLogger::instance().begin(Serial, AudioLogger::Info);
 // ADC
 auto configAdc = in.defaultConfig(RX_MODE);
 configAdc.port_no = 0;
 configAdc.pin_bck = 33;
 configAdc.pin_ws = 32;
 configAdc.pin_data = 25;
 configAdc.i2s_format = I2S_STD_FORMAT;
 configAdc.bits_per_sample = 32;
 configAdc.channels = 2;
 configAdc.sample_rate = 44100;
 configAdc.is_master = true; // optional because default setting
 configAdc.use_apll = false;
 configAdc.pin_mck = 3;
 in.begin(configAdc);
 // DAC
 auto configDac = out.defaultConfig(TX_MODE);
 configDac.port_no = 1;
 configDac.pin_bck = 14;
 configDac.pin_ws = 26;
 configDac.pin_data = 27;
 configDac.i2s_format = I2S_STD_FORMAT;
 configDac.bits_per_sample = 32;
 configDac.channels = 2;
 configDac.sample_rate = 44100;
 configDac.is_master = true;
 configDac.use_apll = false;
 configDac.pin_mck = 3;
 out.begin(configDac);
}
void loop() {
 copier.copy(); 
}