I'll order a couple pieces and give it a shot but I've got a couple questions. It looks like on the wiring diagram that each pin goes to one fan, you tie tach to ground, and let the board supply power from the SATA cable? How do you assign pins to fans then?
This seems pretty cool but I can't seem to figure out which microcontrollers are going to work with it without plugging one in and installing it. Any chance you could provide a list of supported hardware and some suggestion as to how the fans are intended to be wired?