shiznatix:
Soooo, I am confused.
No surprise there. You have been reading an Instructable.
There are two things you can do with a bluetooth module, you can configure it with AT+ commands, or you can use it to communicate.
What are you trying to do with your bluetooth?
One of the most important things you need to know is that you don't have to configure a JY-MCU in order to use it.
I ask this particularly because the code refers to sending AT commands but there is no suggestion that that is what you want. I assume the code complies OK, but I suspect it is junk. I understand you are ignoring the writers admonishment to feed the JY-MCU with 3.3v VCC.