** This package does not shipped with any accessory, it is just a board. So you need to buy the accessory separately.
** Warning: The default firmware shipped with the board has been tested and configured by the factory in working condition (factory flashed the board with tested firmware manually via USB). You will be responsible for damage (or any part of function not working) if you flash your own firmware. So you are recommended to use the default firmware which shipped with the board. Thank you for your understanding.