Pretty simple on how to use it. The simulator builds a tower for you with however many floors you want (1-14 supported). To adjust the floor count, move the slider to the number you want and reload the game. The "speed" slider changes how often (or the speed at which) a floor's light changes. The further to the right the slider is, the lower the speed and the more realistic the visual is. The left, faster side of the slider makes it faster to give the viewer an idea of how the code works.
Made this really as an outline for an Arduino project I want to make, hopefully I can learn how to re-write this code into C/C++ : ) In the code, the first sprite is pretty much all I'd have to program into the Arduino, the second sprite is purely for the visual.