Protoboard activity: Build a modulo-9 counter with the counting sequence 1, 2, ... , 9, 1 and display the output. Hint: Use 74x163, 74x00 and the 7 segment display/driver board. Use Timer board to generate clock signal with 1Hz. Some suggestions: • Use LogicWorks to develop the circuit and record the pin numbers of the chips you use. • Check and verify as you build. • Have the non-builder check wiring. Extra wires are harder to find than missing wires. • Check all power and ground connections. • Use a "Divide and Conquer": Start with what you know is working, such as the input, and independently test the output or other sections. • Use the logic probe to see what you have.