> > Supplies of good non-USB PC keyboards are probably beginning to get harder > > to find now too... > > True. It could use either kind of keyboard. Also, USB to mini-DIN adapters > are still sold ($5 in the current L-Com catalog). That seems like a cheaper > solution than a USB Host shield. >
If you mean one of these, they are just passive adapters that only work if the USB keyboard (or mouse) is capable of supporting both USB and PS/2 interfaces. http://www.l-com.com/usb-usb-adapter-type-a-female-mini-din-6-male I imagine the majority of cheap disposable keyboards manufactured now are USB only devices, not combination USB - PS/2 compatible devices