We took another large step in completing the project. Our group was having trouble creating more complex knocks. We manipulated the code multiple times, but no matter what we did we could not create complex knocks. After trouble shooting for multiple hours we decided that we needed to get a new sensor, so Adam went to radio shack and picked up a Piezo Transistor.  When installed the next day, it solved all of our problems. This video shows the more complex knock that we created.