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What is a UART cable?

UART, the abbreviation of Universal Asynchronous Receiver Transmitter, is the name of the chip that enables computers to communicate over serial lines (eg, RS-232, RS-485, RS-422), is one of the most commonly used device-to-device communication protocols


USB to 3.3V 5V Serial UART TTL Cable


A UART or Serial console is an absolute must when doing bootloader or kernel development on any computer.

Accessing the serial console is even more important on ARM devices than on PCs due to the lack of a standard PC BIOS and a companion VESA BIOS.


Communication protocols play an important role in organizing communication between devices. It is designed in different ways depending on system requirements, and these protocols have specific rules that are agreed upon between devices for successful communication.


USB to UART cable Supports 3.3V UART signal

Embedded systems, microcontrollers, and computers mostly use UART as a form of device-to-device hardware communication protocol. Of the available communication protocols, UART uses only two wires for the transmitter and receiver.


Despite being a widely used hardware communication protocol method, it has not always been fully optimized. Correct implementation of the framing protocol is often overlooked when using the UART module inside a microcontroller.


By definition, UART is a hardware communication protocol that uses asynchronous serial communication with configurable speed. Asynchronous means that there is no clock signal to synchronize the output bits from the sending device to the receiver.

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