Procedure
- Connect GND Port to Pin-8 (Input & Output) of ICBase-1.
- Connect VCC Port to Pin-20 (Input & Output) of ICBase-1.
- Connect GND Port to Pin-19 (Input & Output) of ICBase-1.
- Connect Pin-7 (Input & Output) of ICBase-2 to Pin-1 (Input & Output) of ICBase-1.