PROCEDURE
Design, build, and verify the operation of a 3-bit up-down counter utilizing JK FFs. Depending on input signal U,
the counter must count up (for U=1) or down (for U=0).
Hint: You can remove 74HC161 IC to have more space on the breadboard.
Provide the up-down control signal U from a push button.
Connect CLK inputs to the 555 clock generator.
Demonstrate your design using 7-segment LED display and PCB scope.
