This tool is a serial port debugging tool developed according to the actual common needs in practical engineering applications. It has an elegant and beautiful interface and is also highly practical. It supports various serial port settings, such as baud rate, parity bit, data bit, and stop bit, etc. It supports ASCII/Hex transmission, and the transmitted and received data can be arbitrarily converted between hexadecimal and ASCII code. It can automatically add a parity bit at the end of the transmitted data, supporting multiple parity formats. It supports interval transmission, loop transmission, batch transmission, and input data can be imported from external files.