Thank you all for your replies

> Sounds good. Make sure you use a reasonably up-to-date PIC because you sort
> of want it to walk and chew gum at the same time, and it will make it
> much easier (ie. don't try to use a PIC16C54).
>

I was planning to use the PIC16F84 which looks like it has the ability to meet
the requirements. Would the PIC16F877 be better suited?

>
> Any special reason not to use the RS232 serial port ?
> Seems easier to implement on both ends...
>

I will start on the parallel port, as my computer does not have a serial port.
At the final stage of the project, I hope to be in a position to use a usb
port. Baby steps, one thing at a time as it where.

Regards
Spiros






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