UARTväylillä

UARTväylillä refers to communication interfaces that utilize the Universal Asynchronous Receiver/Transmitter (UART) protocol. This is a standard serial communication method used to transmit data between electronic devices. UART is asynchronous, meaning it does not rely on a shared clock signal between the transmitter and receiver. Instead, it uses start and stop bits to synchronize data transmission.

Each UART communication channel consists of at least two wires: one for transmitting data (TX) and one for receiving data (RX). Devices are connected by crossing these lines, so the TX pin of one device connects to the RX pin of the other, and vice-versa. Data is sent in frames, where each frame contains a start bit, a series of data bits (typically 7 or 8), an optional parity bit for error checking, and one or more stop bits. The speed of communication is determined by the baud rate, which is the number of signal changes per second. Common baud rates include 9600, 19200, and 115200 bits per second.

UARTväylillä are widely used in embedded systems, microcontrollers, and peripheral devices for simple, low-cost serial communication. Examples include connecting a microcontroller to a GPS module, a Bluetooth module, a serial console for debugging, or other sensors. Despite its simplicity and widespread use, UART is a relatively slow communication protocol compared to others like SPI or I2C, and it is limited to full-duplex communication (simultaneous sending and receiving) with only two devices at a time.