串口调试工具可以实现通过串口发送和接收二进制和文本数据，可以通过modem发送和接收二进制和文本数据，并且可以显示modem的状态。-Serial debugging tools can be achieved through the serial port to send and receive binary and text data through the modem can send and receive binary and text data, and can display the modem status.