帮我用python与pyqt5写一个串口工具
时间: 2024-06-10 22:06:04 浏览: 236
python实现的串口工具
好的,我可以为您提供一些代码示例,以便您开始编写串口工具。以下是一个简单的PyQt5串口工具的例子:
``` python
import sys
import serial
from PyQt5.QtCore import Qt
from PyQt5.QtWidgets import QApplication, QWidget, QLabel, QComboBox, QPushButton, QHBoxLayout, QVBoxLayout
class MainWindow(QWidget):
def __init__(self):
super().__init__()
self.port_combo = QComboBox(self)
self.baud_combo = QComboBox(self)
self.data_combo = QComboBox(self)
self.stop_combo = QComboBox(self)
self.parity_combo = QComboBox(self)
self.connect_btn = QPushButton("Connect", self)
self.disconnect_btn = QPushButton("Disconnect", self)
self.init_ui()
def init_ui(self):
self.port_combo.addItems(["COM1", "COM2", "COM3", "COM4"])
self.baud_combo.addItems(["115200", "57600", "9600", "2400", "1200"])
self.data_combo.addItems(["8", "7", "6", "5"])
self.stop_combo.addItems(["1", "2"])
self.parity_combo.addItems(["None", "Even", "Odd", "Mark", "Space"])
port_hbox = QHBoxLayout()
port_label = QLabel("Port:", self)
port_hbox.addWidget(port_label)
port_hbox.addWidget(self.port_combo)
baud_hbox = QHBoxLayout()
baud_label = QLabel("Baud Rate:", self)
baud_hbox.addWidget(baud_label)
baud_hbox.addWidget(self.baud_combo)
data_hbox = QHBoxLayout()
data_label = QLabel("Data Bits:", self)
data_hbox.addWidget(data_label)
data_hbox.addWidget(self.data_combo)
stop_hbox = QHBoxLayout()
stop_label = QLabel("Stop Bits:", self)
stop_hbox.addWidget(stop_label)
stop_hbox.addWidget(self.stop_combo)
parity_hbox = QHBoxLayout()
parity_label = QLabel("Parity:", self)
parity_hbox.addWidget(parity_label)
parity_hbox.addWidget(self.parity_combo)
connect_hbox = QHBoxLayout()
connect_hbox.addWidget(self.connect_btn)
connect_hbox.addWidget(self.disconnect_btn)
vbox = QVBoxLayout()
vbox.addLayout(port_hbox)
vbox.addLayout(baud_hbox)
vbox.addLayout(data_hbox)
vbox.addLayout(stop_hbox)
vbox.addLayout(parity_hbox)
vbox.addLayout(connect_hbox)
self.setLayout(vbox)
self.connect_btn.clicked.connect(self.connect)
self.disconnect_btn.clicked.connect(self.disconnect)
def connect(self):
port = self.port_combo.currentText()
baud = int(self.baud_combo.currentText())
data_bits = int(self.data_combo.currentText())
stop_bits = int(self.stop_combo.currentText())
parity = self.parity_combo.currentText()
self.ser = serial.Serial(port, baud, data_bits, parity, stop_bits)
def disconnect(self):
self.ser.close()
def keyPressEvent(self, event):
if event.key() == Qt.Key_Escape:
self.close()
if __name__ == "__main__":
app = QApplication(sys.argv)
win = MainWindow()
win.show()
sys.exit(app.exec())
```
在这个例子中,我们创建了一个MainWindow类,它包含了一个GUI,其中包含了一些用于串口设置的组件(如COM端口号、波特率、数据位、停止位和奇偶校验),以及连接和断开连接按钮。通过点击“Connect”按钮,我们调用connect()方法打开串口连接,而通过点击“Disconnect”按钮,我们调用disconnect()方法关闭串口连接。在 MainWindow 类中,我们还重写了父类的 keyPressEvent() 方法以捕捉 ESC 键的事件。最后,我们实例化了 MainWindow 类并执行应用程序。
*请注意:这个例子仅仅提供了一个基本框架,对于更加实用的串口工具,您需要根据自己的需求添加更多的功能,比如:数据的读取、显示等等。*
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