UART
UART (Universal Asynchronous Receiver/Transmitter) is a hardware communication protocol that enables serial data transmission between devices without a shared clock signal, using start and stop bits to frame data. It is widely used for point-to-point communication in embedded systems, microcontrollers, and peripherals like GPS modules or Bluetooth chips. The protocol operates asynchronously, meaning each device uses its own internal clock to send and receive data at a predefined baud rate.
Developers should learn UART when working with embedded systems, IoT devices, or hardware prototyping, as it provides a simple and reliable method for debugging, logging, or interfacing with sensors and modules. It is essential for scenarios requiring low-speed, short-distance communication, such as in robotics, automotive systems, or industrial automation, where minimal wiring and straightforward implementation are advantages.