"rpi.edu" is the domain for Rensselaer Polytechnic Institute, and is unrelated to the Raspberry Pi. That had me puzzled for a moment... although I suppose RE'ing one of those would be interesting to do in a course.
We tried to record a few lectures but had technical difficulties with audio quality, they were totally garbage so they didn't get posted.
To my knowledge this is the only course of its kind that has ever been taught, I had to write all of the slides from scratch since I couldn't find any lecture notes to base mine on.
I would be interested in this as well. Especially with video lectures. Did you manage to find anything? I haven't managed to except for some one-off intros.
U5 was a ROT13(SCTN) but your answer is close enough to get credit.
U13 was a ROT13(SGQV HFO pbagebyyre), you can tell since it connects to J2. I don't recall what U1 is but you can ask marshallh (retroactive.be) since he's the guy who designed the board.
