Problem
A. Using the code we discussed in class as a example. Connect both the 4-digit 7-segment display and the matrix keypad to the Arduino.
B. The code should accept 4 inputs from the user. Display all 4 of the input numbers on the 7-segment display and then reset after delaying to show the result to the user.
C. Connect the Oscilloscope to one of the leads of the 7-segment display, what do you notice? Why do you think this is?