Lab 6 has only one lab soultion that switches between Open-loop 
and Closed-loop control using thw slide switch SW0. When SW0 is 
low (off) the project implements Open-loop control. When SW0 is 
set high (on) the project runs Closed-loop control. SW0 can be 
switched while the project is running.

Richard Wall
March 2, 2017
