Att: nibbles

[Labtec]

with reference to the switching circuit you need i would use the same
principle as a hallway two way lighting system bearing in mind that
the pressure mats would have to have three wires on each one.

 

[JeffM]

Labtec wrote:

with reference to the switching circuit you need i would use the same
principle as a hallway two way lighting system bearing in mind that
the pressure mats would have to have three wires on each one.

WTF are you talking to?
http://66.102.7.104/search?q=cache:8PaSp2kKbWoJ:www.faqs.org/rfcs/rfc1855.html+just-enough+at-*-top-*-*-message+do-not-*-*-*-original+zzz+One-to-Many-Communication+qqq+to-give-a-context