python串口工具_使用Python3+PyQT5+Pyserial 实现简单的串口工具方法

下面是一个简单的Python3+PyQT5+Pyserial实现串口工具的示例代码：

import sys
import serial
from PyQt5.QtWidgets import QApplication, QWidget, QPushButton, QLabel, QComboBox, QTextEdit, QVBoxLayout, QHBoxLayout

class SerialTool(QWidget):
    def __init__(self):
        super().__init__()

        self.serial = serial.Serial()

        self.initUI()

    def initUI(self):
        self.portLabel = QLabel("Port:")
        self.portComboBox = QComboBox()
        self.refreshPorts()

        self.baudrateLabel = QLabel("Baudrate:")
        self.baudrateComboBox = QComboBox()
        self.baudrateComboBox.addItems(["9600", "115200"])

        self.openButton = QPushButton("Open")
        self.openButton.clicked.connect(self.openSerial)

        self.closeButton = QPushButton("Close")
        self.closeButton.clicked.connect(self.closeSerial)
        self.closeButton.setEnabled(False)

        self.sendLabel = QLabel("Send:")
        self.sendTextEdit = QTextEdit()

        self.sendButton = QPushButton("Send")
        self.sendButton.clicked.connect(self.sendData)

        self.recvLabel = QLabel("Receive:")
        self.recvTextEdit = QTextEdit()
        self.recvTextEdit.setReadOnly(True)

        portLayout = QHBoxLayout()
        portLayout.addWidget(self.portLabel)
        portLayout.addWidget(self.portComboBox)

        baudrateLayout = QHBoxLayout()
        baudrateLayout.addWidget(self.baudrateLabel)
        baudrateLayout.addWidget(self.baudrateComboBox)

        buttonLayout = QHBoxLayout()
        buttonLayout.addWidget(self.openButton)
        buttonLayout.addWidget(self.closeButton)

        sendLayout = QHBoxLayout()
        sendLayout.addWidget(self.sendLabel)
        sendLayout.addWidget(self.sendTextEdit)
        sendLayout.addWidget(self.sendButton)

        recvLayout = QHBoxLayout()
        recvLayout.addWidget(self.recvLabel)
        recvLayout.addWidget(self.recvTextEdit)

        mainLayout = QVBoxLayout()
        mainLayout.addLayout(portLayout)
        mainLayout.addLayout(baudrateLayout)
        mainLayout.addLayout(buttonLayout)
        mainLayout.addLayout(sendLayout)
        mainLayout.addLayout(recvLayout)

        self.setLayout(mainLayout)

        self.setWindowTitle("Serial Tool")
        self.show()

    def refreshPorts(self):
        self.portComboBox.clear()
        ports = serial.tools.list_ports.comports()
        for port, _, _ in ports:
            self.portComboBox.addItem(port)

    def openSerial(self):
        port = self.portComboBox.currentText()
        baudrate = int(self.baudrateComboBox.currentText())
        self.serial.port = port
        self.serial.baudrate = baudrate
        try:
            self.serial.open()
            self.openButton.setEnabled(False)
            self.closeButton.setEnabled(True)
        except serial.SerialException:
            pass

    def closeSerial(self):
        self.serial.close()
        self.openButton.setEnabled(True)
        self.closeButton.setEnabled(False)

    def sendData(self):
        data = self.sendTextEdit.toPlainText()
        if data:
            self.serial.write(data.encode("utf-8"))

    def readData(self):
        data = self.serial.readline().decode("utf-8")
        self.recvTextEdit.append(data)

if __name__ == '__main__':
    app = QApplication(sys.argv)
    serialTool = SerialTool()
    sys.exit(app.exec_())

这个串口工具界面包含了选择串口、波特率、打开/关闭串口、发送数据和接收数据等功能，并且可以实时显示接收到的数据。你可以根据自己的实际需求进行修改和扩展。