Pedro:
Dispense which possessor you know better otherwise
you can use any possessor to get this job done. PIC
possessors are ready for any thing you name it cheap and reliable.
Excellent Technical support and more.

Andre Abelian



Pedro Barrios wrote:

> Hi everyone,
>
> I need to design a device that would allow access to a
> specific machine and measures the time the machine was in use.
> This is to be done via a keypad. Every user will have a different
> password. It must be user expandable.
>
> I think this can be easily done with a PIC. However, the device
> must be able to communicate with a LAN server. All the users
> passwords, as well as time-keeping will be done by the server. The
> device will only "question" the server as of whether the password was right
> or not,
> and if right the server will send an authorization code, the machine will
> activate, and the server will start measuring the time the machine
> has been in use. When the user desires to stop using the machine,
> the machine is turned off and the time of use is recorded by the server.
>
> There will be many machines controlled by this device-server configuration.
> Thus, the server must be able to execute parallel identification and time
> keeping.
>
> So, I guess my question is: Can this be done with PIC's? I have the
> premonition that I need other chip capable of communicating with
> the LAN, which one would that be? Any suggestions or recommendations
> to any of this?
>
> Regards,
>
> Pedro