Serving module and robot having the same

A serving module, comprising:

• a tray;
• a main body having a tray receiving space configured to accommodate the tray therein, the main body having a tray entrance in communication with the tray receiving space;
• a tray mover configured to move at least a portion of the tray through the tray entrance or move an entirety of the tray into the tray receiving space;
• a door configured to open and close the tray entrance;
• and
• a door driver connected to the door to open and close the door.

A serving module, comprising:

• a tray;
• a main body having a tray receiving space configured to accommodate the tray therein, the main body having a tray entrance in communication with the tray receiving space;
• a door configured to open and close the tray entrance;
• a door driver connected to the door to open and close the door;
• and
• an indicator located on the main body, the indicator being configured to change a lighting pattern according to a moving direction of the door during an operation of the door.

A robot, comprising:

• a serving module, the serving module including:
• a tray;
• a main body having a tray receiving space configured to accommodate the tray therein, the main body having a tray entrance in communication with the tray receiving space;
• a door configured to open and close the tray entrance;
• and
• a door driver connected to the door to open and close the door;
• and
• a mover to transport the serving module, the mover including:
• a support plate on which the serving module is mounted;
• and
• a display located above the support plate.