M5Atom_Aquestalk

#include <M5Atom.h>
#include <driver/i2s.h>
#include "AquesTalkTTS.h"
#include "driver/dac.h"

#define CONFIG_I2S_BCK_PIN 19
#define CONFIG_I2S_LRCK_PIN 33
#define CONFIG_I2S_DATA_PIN 22
#define CONFIG_I2S_DATA_IN_PIN 23

#define SPEAKER_I2S_NUMBER I2S_NUM_0

#define MODE_MIC 0
#define MODE_SPK 1
#define DATA_SIZE 1024

void InitI2SSpeakerOrMic(int mode)
{
    esp_err_t err = ESP_OK;

    i2s_driver_uninstall(SPEAKER_I2S_NUMBER);
    i2s_config_t i2s_config = {
        .mode = (i2s_mode_t)(I2S_MODE_MASTER),
        .sample_rate = 16000,
        .bits_per_sample = I2S_BITS_PER_SAMPLE_16BIT, // is fixed at 12bit, stereo, MSB
        .channel_format = I2S_CHANNEL_FMT_ALL_RIGHT,
        .communication_format = I2S_COMM_FORMAT_I2S,
        .intr_alloc_flags = ESP_INTR_FLAG_LEVEL1,
        .dma_buf_count = 6,
        .dma_buf_len = 60,
    };
    if (mode == MODE_MIC)
    {
        i2s_config.mode = (i2s_mode_t)(I2S_MODE_MASTER | I2S_MODE_RX | I2S_MODE_PDM);
    }
    else
    {
        i2s_config.mode = (i2s_mode_t)(I2S_MODE_MASTER | I2S_MODE_TX);
        i2s_config.use_apll = false;
        i2s_config.tx_desc_auto_clear = true;
    }

    err += i2s_driver_install(SPEAKER_I2S_NUMBER, &i2s_config, 0, NULL);
    i2s_pin_config_t tx_pin_config;

    tx_pin_config.bck_io_num = CONFIG_I2S_BCK_PIN;
    tx_pin_config.ws_io_num = CONFIG_I2S_LRCK_PIN;
    tx_pin_config.data_out_num = CONFIG_I2S_DATA_PIN;
    tx_pin_config.data_in_num = CONFIG_I2S_DATA_IN_PIN;

    //Serial.println("Init i2s_set_pin");
    err += i2s_set_pin(SPEAKER_I2S_NUMBER, &tx_pin_config);
    //Serial.println("Init i2s_set_clk");
    err += i2s_set_clk(SPEAKER_I2S_NUMBER, 16000, I2S_BITS_PER_SAMPLE_16BIT, I2S_CHANNEL_MONO);
}



void setup() {
  M5.begin();
  M5.dis.drawpix(0, CRGB(128, 0, 0));
  InitI2SSpeakerOrMic(MODE_SPK);

  int iret = TTS.create(NULL);

}

void loop() {
  M5.update();
  if(M5.Btn.wasPressed()) {
    TTS.play("emufaibu,atomu,tanoshiiyo", 20);
    Serial.printf("Free Heap Size = %d\n", esp_get_free_heap_size());
  }

}