Well keep in mind, under powering something can be just as bad as overpowering it.
Not in all cases, but a general rule of thumb I likes to follow.
But I didn't realize it had to be brought down to a 3.3v logic, that's no fun :X
I'm glad I got the easier bit, I paid a few bucks more, but I'm a newb so the plug-and-plug really helped 