gsmsalers
16-06-2003, 02:52 AM
Hi.
I need simple serial or lpt dongle scheme. If included PIC contoller then nice. Or usb dongle just for protecting commercial soft that count button click? Inside dongle no need any calc just need safe counter value? Safe means people can read counter value but for changing or reseting that value needs some especcial code or unique command for this dongle which is impossible to everyone except me.
Thanks for attention.
I need simple serial or lpt dongle scheme. If included PIC contoller then nice. Or usb dongle just for protecting commercial soft that count button click? Inside dongle no need any calc just need safe counter value? Safe means people can read counter value but for changing or reseting that value needs some especcial code or unique command for this dongle which is impossible to everyone except me.
Thanks for attention.