I hope you fare better than I did. I tried to help on a PS3 controller modification (tying into the lines) and because all of the buttons are analog and connected to a flex circuit which is just pressed onto the board (no connector) it was absolutely miserable. We tried soldering to the pads on the board, then it made a finicky connection instead, I tried attaching a wire to the flex circuit thinking that it was copper like similar circuits, and the ink came off, it was just terrible.
My suggestion, get a PS3 compatible USB controller and hack that, all digital, you can move switches around, hopefully no nasty sony flex board in it, etc.
That would be a much better layout I think. I'm a bit concernd about attempting to extend this flexible material though. I'm not sure how well I could connect to it, or how long those connections would last.
Replay available now: A handful of emerging network technologies are competing to be the preferred wide-area connection for the Internet of Things. All claim lower costs and power use than cellular but none have wide deployment yet. Listen in as proponents of leading contenders make their case to be the metro or national IoT network of the future. Rick Merritt, EE Times Silicon Valley Bureau Chief, moderators this discussion. Join in and ask his guests questions.