Procedure
- Connect Pin-20 (Input & Output) of ICBase-3 to VCC Port.
- Connect Pin-20 (Input & Output) of ICBase-4 to VCC Port.
- Connect Pin-20 (Input & Output) of ICBase-2 to VCC Port.
- Connect Pin-20 (Input & Output) of ICBase-1 to VCC Port.
- Connect Pin-7 (Input & Output) of ICBase-4 to GND Port.
- Connect Pin-7 (Input & Output) of ICBase-3 to GND Port.
- Connect Pin-7 (Input & Output) of ICBase-2 to GND Port.
- Connect Pin-7 (Input & Output) of ICBase-1 to GND Port.