Here are some interview questions and answers related to UART (Universal Asynchronous Receiver-Transmitter):

1. What is UART? UART stands for Universal Asynchronous Receiver-Transmitter. It’s a hardware component used for serial communication, commonly found in microcontrollers, communication peripherals, and other embedded systems.
2. How does UART differ from other communication protocols like SPI and I2C?

UART is asynchronous, meaning it doesn’t require a clock signal to transmit data. SPI (Serial Peripheral Interface) and I2C (Inter-Integrated Circuit) are synchronous protocols and require a clock signal. Additionally, UART typically involves only two lines (TX and RX) for communication, while SPI and I2C can involve multiple lines.
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