Electronic speed controllers (ESCs) were completely new to me when I first assembled my OpenROV. This article documents my initial misunderstanding (and eventual understanding) of ESCs so that future builders can move forward with fewer glitches. http://rayhightower.com/blog/2014/08/21/esc-programming-and-calibration-for-openrov/
Handy tip about the ESC Programmer card! Instructions are good but its always good to see a write-up on how someone's own build and overcome problems.
David: Agreed. The official OpenROV instructions are outstanding. Even better, they continuously update the Dozuki guide with new photos and insights. Much better than a paper or PDF manual!
Love the Dozuki guide! Agreed, keep updating it, it is our bible for now.