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In the applications of computer peripheral devices, UART is widely used in various scenarios, including connecting keyboards, mice, printers, and more. The use of this communication protocol extends beyond hardware devices and also encompasses software and embedded systems. The flexibility and stability of UART make it an ideal choice for communication between computer peripheral devices.

In terms of signals, UART uses two main communication lines, namely TX (Transmit) and RX (Receive). RX refers to received data or input. TX refers to transmitted data or output. This bidirectional communication design ensures effective communication between devices, and UART typically operates at voltages of 3.3V or 5V. The choice of this voltage specification depends on the specific application requirements and the specifications of the relevant devices.


Data: Show the selected channel (CH0).

Rx: Show Rx data in report window.

Auto: Shows High or Low when auto detection Idle.

Idle high: Idle condition shows High.

Idle low: Idle condition shows Low.

Auto Detect: Set the Baud Rate manually if not selected.

Baud Rate: Data rate (bits per second), and the range is 110 ~ 2M (bps).

Protocol: (Parity - Data Bits - Stop Bits)

Parity: N (None), O (Odd), or E (Even).

Data Bits: 5 to 10 bits.

Stop Bits: 1 to 2 bits.

MSB first: The default is LSB first; click it to change to MSB first. Report Unknown and Idle: Display the unknown and idle data in the Report


Show scale in the waveform: Display the waveforms with scales.

Line Wrap Data: Use 1-2 value (hex) as header of data.

UART Decode

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