Procedure
- Connect Pin-20 (Input & Output) of ICBase-4 to VCC Port.
- Connect Pin-17 (Input & Output) of ICBase-4 to GND Port.
- Connect Seven segment display 1 to Pin-19 (Input & Output) of ICBase-4.
- Connect Seven segment display 1 to Pin-15 (Input & Output) of ICBase-3.
- Connect Seven segment display 1 to Pin-19 (Input & Output) of ICBase-3.
- Connect Clock port of 1Hz frequency to Pin-1 (Input & Output) of ICBase-3.