The BT-210 is a device that enables serial communication (UART) via Bluetooth communication. 
Can be mounted on a Robot. 
Default pin code setting: 0000 (Enter this number to register it to the device during setup. It is only possible to change this number by requesting it from ROBOTIS Customer Support Center) 
Can be used to control the robot with devices that support Bluetooth communication. (i.e. smart phones, tablet PC, laptops, e