A universal asynchronous receiver-transmitter (UART / ˈjuːɑːrt /) is a peripheral device for asynchronous serial communication in which the data format and transmission speeds are configurable.

UART stands for Universal Asynchronous Receiver/Transmitter. It’s not a communication protocol like SPI and I2C, but a physical circuit in a microcontroller, or a stand-alone IC.

By definition, UART is a hardware communication protocol that uses asynchronous serial communication with configurable speed. Asynchronous means there is no clock signal to …

Sep 4, 2024 · UART is one of the most used device-to-device (serial) communication protocols. It’s the protocol used by Arduino boards to communicate with the computer. It allows an asynchronous serial …

Sep 12, 2025 · What is a UART? A UART is a hardware component specialized in asynchronous data transmission. It is responsible for converting parallel data (such as that coming from a microcontroller …

In UART communication, data is transmitted asynchronously, meaning that the sending and receiving devices do not use a shared clock to synchronize data transmission.

UART (Universal Asynchronous Receiver/Transmitter) is one of the simplest ways for two devices to exchange data with each other. Unlike other protocols such as SPI or I2C, UART only needs two …

What is UART? UART is a hardware communication protocol that enables two devices to exchange data serially — one bit at a time — without the need for a shared clock signal.

Aug 25, 2025 · UART (Universal Asynchronous Receiver Transmitter) is a widely used protocol for serial communication. Breaking down the name gives us a clear idea of its functionality: “Universal” implies …

Jun 3, 2025 · Turns out, UART is a physical section of circuitry involving a large scale integrated circuit, that is in essence a translator between parallel and serial data lines. There are “stand-alone” UART …