UART
A UART, or Universal Asynchronous Receiver-Transmitter, is a hardware peripheral used for serial communication. It converts parallel data to serial form for transmission and converts incoming serial data back to parallel form. It is asynchronous, meaning it does not require a separate clock signal; both ends agree on a baud rate and framing parameters beforehand.
Data is framed in a pattern that is widely used: a start bit (usually 0), followed by
Operation: The transmitter loads a data byte into a shift register and transmits it serially through the
Electrical interfaces vary: microcontroller UARTs typically use TTL or CMOS level signals (0 to Vcc). For longer
Applications: UART is a common serial interface for microcontrollers, modules, and embedded devices, used to connect