UART PINS in MCU: HardwareSerial and SoftwareSerial

Every MCU has a dedicated UART Pair of pins (RX, TX).
Now if USE Dedicated UART pins then that is called HardwareSerial in the world of Arduino, in which we only set the Dedicated Registers of UART peripheral to enable UART communication.
But if we want to use MCU pins for UART, other then Hardware oriented: then comes the SoftwareSerial. In SoftwareSerial we Make the UART Communication possible on those 2 pins by creating VIRTUAL UART signals, Buffer, and timing Using the Software and technique called BITBAANGING.


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