https://www.dropbox.com/s/vl1drw919scfcge/JP762A.zip?dl=0 Above is the link to the SDK/API files delivered with my nice new Android based POS system. I have no idea about JAVA and wrappers. I need to access the GPIO port - to pop the cash drawer, select and print to the printer and read from the magnetic stripe reader. They have included sample programs, including sources, as examples. I need to know how long and how much it would cost to have the library/wrapper built. Payment by PayPal of course!