urgent! bluetooth problems

[bryantsg]

I am a university student doing a project on robonova-1, I have parani esd 100 on my robot, and by that I can connect my computer to the robot, a few weeks ago, everything is okay, but yesterday when i test the robot i found that the parani- esd 100 can only transmit data to my computer,but it can't receive anything from my computer. I guess it maybe something wrong with the interface board(the one between the bluetooth and the serial port of robot. Since i have to demo the project in three days time...i have to buy a new interface board, but i dont know its module no....everyone can help...thanks very very very ... much