JOSE ANTONIO CHONG LEAL <PICLIST@MITVMA.MIT.EDU> wrote:

> since i only have 4 things to make (right motor fwd and rev and left
> motor fwd and rev) i can use a nibble of data. if something is to be
> activated it would generate a "1".

Jose:

Since "forward" and "reverse" are mutually exclusive, you don't need
four bits... If you use "0" for "reverse" and "1" for "forward", you
can send the whole message in only TWO bits.

-Andy

=== Andrew Warren - fastfwd@ix.netcom.com
=== Fast Forward Engineering - Vista, California
=== http://www.geocities.com/SiliconValley/2499