So I've built this circuit on my breadboard with an arduino uno and largely have it working. http://makezine.com/projects/make-34/the-dryer-messenger/
Now I'm trying to miniaturize it by using a pro mini; however, I keep blowing them up. I've confirmed that the soldering is fine and there are no shorts on the board since I've powered it up fine with a FTDI friend.
I have 9.2 DCV coming from the wall wart, when I connect the positive to the raw pin and the negative to the ground pin then I get a red flashing light on the arduino, and the wall wart also flashes red. If I leave it on for about 10 seconds, then it blows up and I see sparks.
The arduino pro mini : http://www.sparkfun.com/tutorials/244
The arduino pro mini schematic : http://dlnmh9ip6v2uc.cloudfront.net/datasheets/Dev/Arduino/Boards/Arduino-Pro-Mini-v13.pdf
The voltage regulator stage of the arduino pro mini board
Any idea as to what I'm doing wrong?