Hi There,
Just a quick post to say I received the above unit this morning and started to connect it up to find the same problems as others.
With a meter I traced the pin outs and with the AdaFruit video:
I got the unit to work with their library.
Also it works fine with a Duemilanove board, it warns of low memory on upoad but enrolls fine.
Just trying the Demo Fingerprint file
Hope this helps.
Pete