Hi Mstechca,
Thank you for the advice. I will try Atmel's AT89C2051. However, I am not very good at programming. I do have about 2 months time to complete and I will try study to use micro-controller.
In, the mean time, it would be very nice if you have another idea of using just logic circuit and/or some IC to build the pure hardware circuit.
Thanks and Regards,
Just-do-it
(Now, I know a little what to do, but needs time to study..Cannot just-do-it easily for electronic... :roll: )