Hi,

I intend to distribute the software : the main rule is never use the main
chip alone: for some additional functions seems to me better to use one or 2
inexpensive 8 pin PICs.
For example one main chip 876 or 877 and one or two 8 pins PIC.
The soft is more simple , perhaps the block is reusable for other projects
in the same area and I hope will be  more difficult  to copy 2 chips. The
qualified person that can copy it , can do the project alone without a copy.
That person copy the idea if is not patented.
But the less qualified , the most dangerous in my experience , seems to have
more difficulties and more chips to indentify.

Please comment the weak points!
Thanks.

Fernando Teixeira