Im a newbie to this field, i got my self a MultiWii SE 2.5 with a FTDI to begin. But now when i try to upload the code from arduino IDE i'm getting the error "Serial port 'COM38' already in use. Try quitting any programs that may be using it."
I have been trying to Solve this error for over 2 days now. Please Help Me : /
Other Info: Running Windows 8
trying to upload MultiWii_2_3