   btStop();
 
   Serial.begin( 115200 );
-  Serial.println();
-  Serial.printf( "aquacontrol32 %s\n", SKETCH_VERSION );
-  Serial.print( "ESP32 SDK: " );
-  Serial.println( ESP.getSdkVersion() );
-  Serial.println();
+  ESP_LOGI( TAG, "aquacontrol32 %s", SKETCH_VERSION );
+  ESP_LOGI( TAG, "ESP32 SDK: %s", ESP.getSdkVersion() );
 
   SPI.begin( SPI_SCK_PIN, SPI_MISO_PIN, SPI_MOSI_PIN );
   SPI.setFrequency( 80000000 );

  }
  else
  {
    Serial.println( "No I2C device found." );
  }

  xTaskCreatePinnedToCore(

  }
  else
  {
    ESP_LOGI( TAG, "No ILI9341 found" );
  }

  Wire.begin( I2C_SDA_PIN, I2C_SCL_PIN, 1000000 );

  Wire.beginTransmission( OLED_ADDRESS );
  uint8_t err = Wire.endTransmission();
  if ( err == 0 )
  {
    ESP_LOGI( TAG, "Found I2C device at address 0x%x.\n", OLED_ADDRESS );
    xTaskCreatePinnedToCore(
      oledTask,                       /* Function to implement the task */
      "oledTask",                     /* Name of the task */
