Jason A Alexander wrote:
>
> Hello all,
>
> I am looking for suggestions on the best way to do an entry code.
>
> What I want to do is to issue a command after a certin command code is
 entered.
> Say from a keypad.  The keypad sends 8 bits of information.  After the correct
> code is entered I want to issue a command.
>
> Can anyone give me suggestions were to start on this.
>
> Thanks
>
> Jason Alexander

I'm having been implemented with 89C1051 and COP870! Now i intend to implement
 with the HOLTEK!
I was using the x25128 to store the codes! Why don't you use PIC16F84?

mIGUEL aLEXANDRE wISINTAINER