Arduino 3DOF Head Tracker

hi Zitron,
I have a sure electronics accelerometer, and a rbbb, but missed the gyro on the list... which is the one you used, from the page linked to at r2hobbies? Right off, looking at your photo, I was confused by: the trim pot [is that the gyro?]; the connection between + and J2/sleep; and what appears to be an extra resistor off the bottom of the rbbb. I ask 'cause, as a noob, small errors repeat endlessly when guessing a build. thanks, and cool work! david