 bool playingByCard = true;
 bool pairing = false;
 String currentFile = "";
+uint8_t volume = 10;
 
 SdFat SD;
 SdFile uploadFile;

    server.sendContent(output);
  }
  server.sendContent(F("</body></html>"));
  server.client().stop();
}

bool loadFromSdCard(String &path) {

  } else {
    returnHttpStatus((uint8_t)404, "Not found");
  }
}

void handleFileUpload() {
