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Modern communication systems depend heavily on the Universal Asynchronous Receiver Transmitter (UART), which makes it easier for the devices to transmit data serially. An overview of UART communication, its basic ideas, and its many uses are given in this abstract. The Universal Asynchronous Receiver-Transmitter (UART) is a communication protocol use to send information to computer peripheral devices. UART can operate in both half- duplex and full-duplex modes, typically transmitting one byte of data. In serial port transmission, the format is usually 10 or 11 bits, including eight data bits, one stop bit, one optional bit, and one start bit. Asynchronous communication, a key feature of UART, is known for its stable and straightforward design. Additional features like error detection, baud rate options, flow of hardware control have been made possible by improving in UART technology. These changes address …