Getting Started with UART: A Beginner’s Guide
UART (Universal Asynchronous Receiver/Transmitter) is a communication protocol commonly used in microcontrollers and other embedded systems. It allows for serial communication, enabling the transfer of data between two or more devices. Two main components in UART are: a transmitter and a receiver . The transmitter converts parallel data from a microcontroller or computer into a serial stream of bits, while the receiver converts the serial stream of bits back into parallel data. The data is transmitted in the form of packets called frames, which consist of a start bit, data bits, optional parity bit, and stop bits. UART Packet Format As mentioned above, UART communication involves transmitting data in the form of frames , with each frame consisting of a start bit, data bits, optional parity bit, and stop bit. Details of the frame is as below: The Start Bit : The start bit is a logic low (0) signal that indicates the beginning of the data frame. It is ...