I changed the code so that it blinked a bicolor LED between green and red. It was having trouble and operating erratically. First I tried programming a second chip with no success, and then I ended up mounting all the components on a different breadboard. They seemed to work much more consistently on the new board. I'm now at a point where I'm doing more reading so I can start making use of the timer. Once I get that figured out, I'll work on getting 1 channel read and change the light between red, green, or both depending on the position of the control. After that, getting multiple channels working should be much easier.