python创建串口调试助手

以下是一个简单的Python串口调试助手的示例代码：

import sys
import serial
from PyQt5.QtWidgets import QApplication, QMainWindow, QComboBox, QTextEdit
from PyQt5.QtCore import QThread, pyqtSignal

class SerialThread(QThread):
    data_arrive_signal = pyqtSignal()

    def __init__(self, ser=None):
        super().__init__()
        self.ser = ser
        self.data = ''

    def run(self):
        while True:
            if self.ser and self.ser.in_waiting:
                self.data += self.ser.read_all().decode('gbk')
                print(self.data)
                self.data_arrive_signal.emit()

class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()

        self.serial_port = None
        self.serial_thread = None

        self.combo_box = QComboBox(self)
        self.combo_box.currentIndexChanged.connect(self.connect_serial)

        self.text_edit = QTextEdit(self)

        self.init_ui()

    def init_ui(self):
        self.setWindowTitle("Serial Debug Assistant")
        self.setGeometry(100, 100, 400, 300)

        self.combo_box.setGeometry(10, 10, 200, 30)
        self.text_edit.setGeometry(10, 50, 380, 240)

        self.show()

    def connect_serial(self, index):
        if self.serial_port:
            self.serial_port.close()

        port_name = self.combo_box.itemText(index)
        try:
            self.serial_port = serial.Serial(port_name, 9600)
            self.serial_thread = SerialThread(self.serial_port)
            self.serial_thread.data_arrive_signal.connect(self.update_text_edit)
            self.serial_thread.start()
        except serial.SerialException:
            print("Failed to connect to serial port")

    def update_text_edit(self):
        self.text_edit.setText(self.serial_thread.data)

if __name__ == '__main__':
    app = QApplication(sys.argv)
    window = MainWindow()
    sys.exit(app.exec_())

这个示例代码使用了PyQt5库来创建一个简单的串口调试助手。它包括一个下拉框用于选择串口，一个文本编辑框用于显示接收到的数据。当选择串口后，程序会自动连接到选定的串口，并在接收到数据时更新文本编辑框。