I am try to use R305 Finger print module interface with my Arduino. The library is working good and I can't enroll my fingers. while Enroll my finger I got unknown ERROR. Finally I wrote manually.
My friend said I was read at net. This version does not support this lib.
So I was download older (1.6.6 this version I download) arduino version. again install adafurit library. And Finally It is working good.