ESP32 Forum

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static void i2s_init(void){
  i2s_config_t i2s_config = {
    .mode = (i2s_mode_t)(I2S_MODE_MASTER | I2S_MODE_RX),
    .sample_rate = I2S_SAMPLE_RATE,
    .bits_per_sample = i2s_bits_per_sample_t(I2S_SAMPLE_BITS),
    .channel_format = I2S_CHANNEL_FMT_ONLY_LEFT,
    .communication_format = i2s_comm_format_t(I2S_COMM_FORMAT_I2S | I2S_COMM_FORMAT_I2S_MSB),
    .intr_alloc_flags = 0,
    .dma_buf_count = 64,
    .dma_buf_len = 1024,
    .use_apll = 1
  };

  i2s_driver_install(I2S_NUM_0, &i2s_config, 0, NULL);

  const i2s_pin_config_t pin_config = {
    .bck_io_num = I2S_SCK,
    .ws_io_num = I2S_WS,
    .data_out_num = -1,
    .data_in_num = I2S_SD
  };

  i2s_set_pin(I2S_NUM_0, &pin_config);
}

Code: Select all

void ble_init() 
{

  Serial.println("Starting Arduino BLE Client application...");
  BLEDevice::init("ESP32-BLE-Client");

  /* Retrieve a Scanner and set the callback we want to use to be informed when we
     have detected a new device.  Specify that we want active scanning and start the
     scan to run for 5 seconds. */
  BLEScan* pBLEScan = BLEDevice::getScan();
  pBLEScan->setAdvertisedDeviceCallbacks(new MyAdvertisedDeviceCallbacks());
  pBLEScan->setInterval(1349);
  pBLEScan->setWindow(449);
  pBLEScan->setActiveScan(true);
  pBLEScan->start(5, false);
}