Rover Bluetooth control

Do you need to install a xbee2 controller for the DFRobot Serial Bluetooth module to work?

The DFRobot Serial Bluetooth is really made for devices which have that specific pinout. These include:
robotshop.com/en/dfrobot-rom … a-328.html
robotshop.com/en/romeo-v2-mi … a32u4.html
robotshop.com/en/dfrobotshop … rd-v2.html

You do not need an XBee controller.