An easy application of the counter: the frequency divider. The outputs of the counter have the frequency of the UP pin but divided for 2. In particular the A pin has the UP frequency/2 the B pin has the A frequency/2 the C pin has the B frequency/2 etc. The divider can also be hexpanded by connetting the borrow pin to an another counter. I used a voltage splitter to visualize better on the "oscilloscope" the change of frequency. It divide the frequency and it also fix the duty cycle to 50%
