最近研究了python发现这个语言异常强大可以直接用来写pyqt5的应用程序搭配ai编程助手很快写了一个串口工具真不错。 this module contains the main tool class and the main function to run the tool. main purpose of this module is to implement UART COM send and receive functions via pqt5. copyright (c) 2026 by oushaojun from PyQt5.QtCore import * from PyQt5.QtGui import * from PyQt5.QtWidgets import * import os import sys import serial import serial.tools.list_ports import time from datetime import datetime def _log(message): # timestamp with milliseconds timestamp datetime.now().strftime(%Y-%m-%d %H:%M:%S.%f)[:-3] print(f[{timestamp}] {message}) class SettingsDialog(QDialog): reopen_serial_port_signal pyqtSignal() def __init__(self, parentNone): super().__init__(parent) self.setWindowTitle(Settings) self.resize(400, 200) self.init_ui() self.setWindowModality(Qt.ApplicationModal) def init_ui(self): layout QVBoxLayout() self.setLayout(layout) # Create a form layout for the settings form_layout QFormLayout() layout.addLayout(form_layout) # Add a line edit for the COM port self.port_combo QComboBox() ports serial.tools.list_ports.comports() self.port_combo.addItems([port.device for port in ports]) form_layout.addRow(COM Port:, self.port_combo) # Add a combo box for the baud rate self.baudrate_combo QComboBox() self.baudrate_combo.addItems([9600, 19200, 38400, 57600, 115200]) form_layout.addRow(Baudrate:, self.baudrate_combo) # Add OK and Cancel buttons button_box QDialogButtonBox(QDialogButtonBox.Ok | QDialogButtonBox.Cancel) button_box.accepted.connect(self.accept) button_box.rejected.connect(self.reject) layout.addWidget(button_box) def accept(self): # Save the settings when the dialog is accepted self.parent().com_config[port] self.port_combo.currentText() self.parent().com_config[baudrate] int(self.baudrate_combo.currentText()) self.parent().save_settings() self.reopen_serial_port_signal.emit() _log(fSettings updated: {self.parent().com_config}) super().accept() def reject(self): # Discard changes when the dialog is rejected _log(Settings changes discarded.) super().reject() class SerialReadWorker(QObject): message_received pyqtSignal(str) def __init__(self, serial_port): super().__init__() self.serial_port serial_port self.running True pyqtSlot() def run(self): while self.running: try: if self.serial_port and self.serial_port.in_waiting 0: message self.serial_port.readline().decode(errorsignore).strip() if message: self.message_received.emit(message) except Exception: # ignore transient serial errors during read pass time.sleep(0.1) pyqtSlot() def update_serial_port(self, serial_port): self.serial_port serial_port pyqtSlot() def stop(self): self.running False class MainWindow(QMainWindow): def __init__(self): super().__init__() self.init_settings() #call first to create variable self.com_config self.setWindowTitle(UART COM Tool) self.resize(1200, 600) self.init_ui() self.init_menu() self.open_serial_port() def open_serial_port(self): try: if hasattr(self, serial_port) and self.serial_port.is_open: self.serial_port.close() _log(fClosed serial port: {self.com_config[port]}) self.serial_port serial.Serial(self.com_config[port], self.com_config[baudrate], timeout1) _log(fOpened serial port: {self.com_config[port]} at {self.com_config[baudrate]} baud.) except serial.SerialException as e: _log(fError opening serial port: {e}) self.output_text_edit.append(fError opening serial port: {e}) else: # Start a thread to read from the serial port if not hasattr(self, read_thread) or not self.read_thread.isRunning(): self.read_thread QThread() self.read_worker SerialReadWorker(self.serial_port) self.read_worker.moveToThread(self.read_thread) self.read_thread.started.connect(self.read_worker.run) self.read_thread.finished.connect(self.read_worker.stop) self.read_worker.message_received.connect(self.handle_received_message) self.read_thread.start() _log(Started serial read thread.) else: if hasattr(self, read_worker) and self.read_worker is not None: self.read_worker.update_serial_port(self.serial_port) _log(Serial read thread is already running.) self.output_text_edit.append(f\r\nOpened serial port: {self.com_config[port]} at {self.com_config[baudrate]} baudrate.) def handle_received_message(self, message): _log(fReceived message: {message}) timestamp datetime.now().strftime(%Y-%m-%d %H:%M:%S.%f)[:-3] self.output_text_edit.append(f[{timestamp}] Received: {message}) def init_settings(self): # Load settings from QSettings self.settings QSettings(config.ini, QSettings.IniFormat) self.load_settings() def init_ui(self): # Create a central widget central_widget QWidget() self.setCentralWidget(central_widget) # Create a layout for the central widget layout QVBoxLayout() central_widget.setLayout(layout) # Add a label to the layout label QLabel(Output Message:) label.setAlignment(Qt.AlignLeft) layout.addWidget(label) #add a text edit to the layout to show the output message self.output_text_edit QTextEdit() self.output_text_edit.setReadOnly(True) layout.addWidget(self.output_text_edit) #add a label to the layout label2 QLabel(Input Message:) label2.setAlignment(Qt.AlignLeft) layout.addWidget(label2) #add a text edit to the layout to input the message to send self.input_text_edit QLineEdit() layout.addWidget(self.input_text_edit) #add a button to the layout to send the message hbox QHBoxLayout() hbox.addStretch() self.send_button QPushButton(Send) self.send_button.setFixedHeight(30) self.send_button.setFixedWidth(100) self.send_button.clicked.connect(self.send_message) hbox.addWidget(self.send_button) layout.addLayout(hbox) #status bar to show the current COM port and baudrate self.status_label QLabel() self.status_label.setAlignment(Qt.AlignRight | Qt.AlignVCenter) self.status_bar QStatusBar() self.status_bar.addPermanentWidget(self.status_label, 1) self.status_label.setText( fCOM Port: {self.com_config[port]}, Baudrate: {self.com_config[baudrate]} ) self.setStatusBar(self.status_bar) def send_message(self): # Get the message from the input text edit message self.input_text_edit.text() timestamp datetime.now().strftime(%Y-%m-%d %H:%M:%S.%f)[:-3] if not message: _log(No message to send.) return # Send the message via the configured COM port and baudrate try: if not hasattr(self, serial_port) or not self.serial_port.is_open: _log(Serial port is not open. Attempting to open it.) self.open_serial_port() if not self.serial_port.is_open: _log(Failed to open serial port. Cannot send message.) self.output_text_edit.append(f[{timestamp}] Error: Serial port is not open.) return self.serial_port.write((message \n).encode()) _log(fSent message: {message}) self.output_text_edit.append(f[{timestamp}] Sent: {message}) except serial.SerialException as e: _log(fError sending message: {e}) self.output_text_edit.append(f[{timestamp}] Error: {e}) else: # Clear the input text edit after sending #self.input_text_edit.clear() pass def reopen_serial_port(self): _log(Reopening serial port with updated settings.) self.open_serial_port() self.update_status_bar() def update_status_bar(self): self.status_label.setText( fCOM Port: {self.com_config[port]}, Baudrate: {self.com_config[baudrate]} ) _log(fStatus bar updated: COM Port: {self.com_config[port]}, Baudrate: {self.com_config[baudrate]}) def init_menu(self): # Create a menu bar menu_bar self.menuBar() # menu bar contains two sub-menus: File and Config file_menu menu_bar.addMenu(File) config_menu menu_bar.addMenu(Settings) # exit action to close the application exit_action QAction(Exit, self) exit_action.triggered.connect(self.close) # info action to show the tool information info_action QAction(Info, self) info_action.triggered.connect(self.show_info) # save output message to a file action save_action QAction(Save output, self) save_action.triggered.connect(self.save_output_to_file) #clear output message action clear_action QAction(Clear output, self) clear_action.triggered.connect(self.output_text_edit.clear) # add the exit action to the file menu file_menu.addAction(exit_action) file_menu.addAction(info_action) file_menu.addAction(save_action) file_menu.addAction(clear_action) file_menu.addSeparator() # add the settings action to the config menu config_menu.addAction(settings) config_menu.triggered.connect(self.open_settings_dialog) def save_output_to_file(self): # Open a file dialog to select the file to save the output message timestamp datetime.now().strftime(%Y-%m-%d %H:%M:%S.%f)[:-3] filename f{timestamp.replace( , _).replace(:, -)}_{self.com_config[port]}.txt options QFileDialog.Options() options | QFileDialog.DontUseNativeDialog file_name, _ QFileDialog.getSaveFileName(self, Save Output Message, filename, Text Files (*.txt);;All Files (*), optionsoptions) if file_name: try: with open(file_name, w, encodingutf-8) as f: f.write(self.output_text_edit.toPlainText()) _log(fOutput message saved to {file_name}) except Exception as e: _log(fError saving output message: {e}) self.output_text_edit.append(f[{timestamp}] Error saving output message: {e}) def load_settings(self): ports serial.tools.list_ports.comports() _log(fAvailable COM ports: {[port.device for port in ports]}) if os.name nt: # Windows: Use the first available COM port or default to COM1 default_port ports[0].device if ports else COM1 elif os.name posix: # Linux: Use the first available /dev/ttyUSB* or /dev/ttyS* port or default to /dev/ttyUSB0 default_port next((port.device for port in ports if port.device.startswith(/dev/ttyUSB) or port.device.startswith(/dev/ttyS)), /dev/ttyUSB0) else: # Other OS: Default to COM1 default_port COM1 self.com_config { port: self.settings.value(port, default_port), baudrate: int(self.settings.value(baudrate, 115200)), } _log(fLoaded settings: {self.com_config}) def save_settings(self): self.settings.setValue(port, self.com_config[port]) self.settings.setValue(baudrate, self.com_config[baudrate]) self.settings.sync() _log(fSaved settings: {self.com_config}) def open_settings_dialog(self): dialog SettingsDialog(self) dialog.port_combo.setCurrentText(self.com_config[port]) dialog.baudrate_combo.setCurrentText(str(self.com_config[baudrate])) dialog.reopen_serial_port_signal.connect(self.reopen_serial_port) dialog.exec_() self.update_status_bar() def closeEvent(self, event): # Save settings when the application is closed self.save_settings() if hasattr(self, read_thread) and self.read_thread is not None and self.read_thread.isRunning(): try: # ask the worker to stop and quit the thread if hasattr(self, read_worker) and self.read_worker is not None: self.read_worker.stop() self.read_thread.quit() self.read_thread.wait() except Exception: pass _log(Application closed. Settings saved.) event.accept() def show_info(self): # Show a message box with the tool information msg QMessageBox() msg.setText(UART COM Tool\nVersion 1.0\nCopyright (c) 2026 by oushaojun) msg.setInformativeText(This tool is used for sending and receiving data via UART COM ports.) msg.setDetailedText(This tool is implemented using PyQt5 and provides a simple GUI for UART communication. It allows users to configure COM port settings, send data, and receive data in real-time.) msg.setStandardButtons(QMessageBox.Ok | QMessageBox.Cancel) msg.setWindowTitle(Info) msg.setIcon(QMessageBox.Information) msg.resize(600, 400) retval msg.exec_() if __name__ __main__: app QApplication(sys.argv) app.setWindowIcon(QApplication.style().standardIcon(QStyle.SP_ComputerIcon)) win MainWindow() win.show() sys.exit(app.exec_())requirements.txt内容PyQt55.15.11 pyqt5_sip12.18.0 pyserial3.5 使用pyqt5写一个串口工具
最近研究了python发现这个语言异常强大可以直接用来写pyqt5的应用程序搭配ai编程助手很快写了一个串口工具真不错。 this module contains the main tool class and the main function to run the tool. main purpose of this module is to implement UART COM send and receive functions via pqt5. copyright (c) 2026 by oushaojun from PyQt5.QtCore import * from PyQt5.QtGui import * from PyQt5.QtWidgets import * import os import sys import serial import serial.tools.list_ports import time from datetime import datetime def _log(message): # timestamp with milliseconds timestamp datetime.now().strftime(%Y-%m-%d %H:%M:%S.%f)[:-3] print(f[{timestamp}] {message}) class SettingsDialog(QDialog): reopen_serial_port_signal pyqtSignal() def __init__(self, parentNone): super().__init__(parent) self.setWindowTitle(Settings) self.resize(400, 200) self.init_ui() self.setWindowModality(Qt.ApplicationModal) def init_ui(self): layout QVBoxLayout() self.setLayout(layout) # Create a form layout for the settings form_layout QFormLayout() layout.addLayout(form_layout) # Add a line edit for the COM port self.port_combo QComboBox() ports serial.tools.list_ports.comports() self.port_combo.addItems([port.device for port in ports]) form_layout.addRow(COM Port:, self.port_combo) # Add a combo box for the baud rate self.baudrate_combo QComboBox() self.baudrate_combo.addItems([9600, 19200, 38400, 57600, 115200]) form_layout.addRow(Baudrate:, self.baudrate_combo) # Add OK and Cancel buttons button_box QDialogButtonBox(QDialogButtonBox.Ok | QDialogButtonBox.Cancel) button_box.accepted.connect(self.accept) button_box.rejected.connect(self.reject) layout.addWidget(button_box) def accept(self): # Save the settings when the dialog is accepted self.parent().com_config[port] self.port_combo.currentText() self.parent().com_config[baudrate] int(self.baudrate_combo.currentText()) self.parent().save_settings() self.reopen_serial_port_signal.emit() _log(fSettings updated: {self.parent().com_config}) super().accept() def reject(self): # Discard changes when the dialog is rejected _log(Settings changes discarded.) super().reject() class SerialReadWorker(QObject): message_received pyqtSignal(str) def __init__(self, serial_port): super().__init__() self.serial_port serial_port self.running True pyqtSlot() def run(self): while self.running: try: if self.serial_port and self.serial_port.in_waiting 0: message self.serial_port.readline().decode(errorsignore).strip() if message: self.message_received.emit(message) except Exception: # ignore transient serial errors during read pass time.sleep(0.1) pyqtSlot() def update_serial_port(self, serial_port): self.serial_port serial_port pyqtSlot() def stop(self): self.running False class MainWindow(QMainWindow): def __init__(self): super().__init__() self.init_settings() #call first to create variable self.com_config self.setWindowTitle(UART COM Tool) self.resize(1200, 600) self.init_ui() self.init_menu() self.open_serial_port() def open_serial_port(self): try: if hasattr(self, serial_port) and self.serial_port.is_open: self.serial_port.close() _log(fClosed serial port: {self.com_config[port]}) self.serial_port serial.Serial(self.com_config[port], self.com_config[baudrate], timeout1) _log(fOpened serial port: {self.com_config[port]} at {self.com_config[baudrate]} baud.) except serial.SerialException as e: _log(fError opening serial port: {e}) self.output_text_edit.append(fError opening serial port: {e}) else: # Start a thread to read from the serial port if not hasattr(self, read_thread) or not self.read_thread.isRunning(): self.read_thread QThread() self.read_worker SerialReadWorker(self.serial_port) self.read_worker.moveToThread(self.read_thread) self.read_thread.started.connect(self.read_worker.run) self.read_thread.finished.connect(self.read_worker.stop) self.read_worker.message_received.connect(self.handle_received_message) self.read_thread.start() _log(Started serial read thread.) else: if hasattr(self, read_worker) and self.read_worker is not None: self.read_worker.update_serial_port(self.serial_port) _log(Serial read thread is already running.) self.output_text_edit.append(f\r\nOpened serial port: {self.com_config[port]} at {self.com_config[baudrate]} baudrate.) def handle_received_message(self, message): _log(fReceived message: {message}) timestamp datetime.now().strftime(%Y-%m-%d %H:%M:%S.%f)[:-3] self.output_text_edit.append(f[{timestamp}] Received: {message}) def init_settings(self): # Load settings from QSettings self.settings QSettings(config.ini, QSettings.IniFormat) self.load_settings() def init_ui(self): # Create a central widget central_widget QWidget() self.setCentralWidget(central_widget) # Create a layout for the central widget layout QVBoxLayout() central_widget.setLayout(layout) # Add a label to the layout label QLabel(Output Message:) label.setAlignment(Qt.AlignLeft) layout.addWidget(label) #add a text edit to the layout to show the output message self.output_text_edit QTextEdit() self.output_text_edit.setReadOnly(True) layout.addWidget(self.output_text_edit) #add a label to the layout label2 QLabel(Input Message:) label2.setAlignment(Qt.AlignLeft) layout.addWidget(label2) #add a text edit to the layout to input the message to send self.input_text_edit QLineEdit() layout.addWidget(self.input_text_edit) #add a button to the layout to send the message hbox QHBoxLayout() hbox.addStretch() self.send_button QPushButton(Send) self.send_button.setFixedHeight(30) self.send_button.setFixedWidth(100) self.send_button.clicked.connect(self.send_message) hbox.addWidget(self.send_button) layout.addLayout(hbox) #status bar to show the current COM port and baudrate self.status_label QLabel() self.status_label.setAlignment(Qt.AlignRight | Qt.AlignVCenter) self.status_bar QStatusBar() self.status_bar.addPermanentWidget(self.status_label, 1) self.status_label.setText( fCOM Port: {self.com_config[port]}, Baudrate: {self.com_config[baudrate]} ) self.setStatusBar(self.status_bar) def send_message(self): # Get the message from the input text edit message self.input_text_edit.text() timestamp datetime.now().strftime(%Y-%m-%d %H:%M:%S.%f)[:-3] if not message: _log(No message to send.) return # Send the message via the configured COM port and baudrate try: if not hasattr(self, serial_port) or not self.serial_port.is_open: _log(Serial port is not open. Attempting to open it.) self.open_serial_port() if not self.serial_port.is_open: _log(Failed to open serial port. Cannot send message.) self.output_text_edit.append(f[{timestamp}] Error: Serial port is not open.) return self.serial_port.write((message \n).encode()) _log(fSent message: {message}) self.output_text_edit.append(f[{timestamp}] Sent: {message}) except serial.SerialException as e: _log(fError sending message: {e}) self.output_text_edit.append(f[{timestamp}] Error: {e}) else: # Clear the input text edit after sending #self.input_text_edit.clear() pass def reopen_serial_port(self): _log(Reopening serial port with updated settings.) self.open_serial_port() self.update_status_bar() def update_status_bar(self): self.status_label.setText( fCOM Port: {self.com_config[port]}, Baudrate: {self.com_config[baudrate]} ) _log(fStatus bar updated: COM Port: {self.com_config[port]}, Baudrate: {self.com_config[baudrate]}) def init_menu(self): # Create a menu bar menu_bar self.menuBar() # menu bar contains two sub-menus: File and Config file_menu menu_bar.addMenu(File) config_menu menu_bar.addMenu(Settings) # exit action to close the application exit_action QAction(Exit, self) exit_action.triggered.connect(self.close) # info action to show the tool information info_action QAction(Info, self) info_action.triggered.connect(self.show_info) # save output message to a file action save_action QAction(Save output, self) save_action.triggered.connect(self.save_output_to_file) #clear output message action clear_action QAction(Clear output, self) clear_action.triggered.connect(self.output_text_edit.clear) # add the exit action to the file menu file_menu.addAction(exit_action) file_menu.addAction(info_action) file_menu.addAction(save_action) file_menu.addAction(clear_action) file_menu.addSeparator() # add the settings action to the config menu config_menu.addAction(settings) config_menu.triggered.connect(self.open_settings_dialog) def save_output_to_file(self): # Open a file dialog to select the file to save the output message timestamp datetime.now().strftime(%Y-%m-%d %H:%M:%S.%f)[:-3] filename f{timestamp.replace( , _).replace(:, -)}_{self.com_config[port]}.txt options QFileDialog.Options() options | QFileDialog.DontUseNativeDialog file_name, _ QFileDialog.getSaveFileName(self, Save Output Message, filename, Text Files (*.txt);;All Files (*), optionsoptions) if file_name: try: with open(file_name, w, encodingutf-8) as f: f.write(self.output_text_edit.toPlainText()) _log(fOutput message saved to {file_name}) except Exception as e: _log(fError saving output message: {e}) self.output_text_edit.append(f[{timestamp}] Error saving output message: {e}) def load_settings(self): ports serial.tools.list_ports.comports() _log(fAvailable COM ports: {[port.device for port in ports]}) if os.name nt: # Windows: Use the first available COM port or default to COM1 default_port ports[0].device if ports else COM1 elif os.name posix: # Linux: Use the first available /dev/ttyUSB* or /dev/ttyS* port or default to /dev/ttyUSB0 default_port next((port.device for port in ports if port.device.startswith(/dev/ttyUSB) or port.device.startswith(/dev/ttyS)), /dev/ttyUSB0) else: # Other OS: Default to COM1 default_port COM1 self.com_config { port: self.settings.value(port, default_port), baudrate: int(self.settings.value(baudrate, 115200)), } _log(fLoaded settings: {self.com_config}) def save_settings(self): self.settings.setValue(port, self.com_config[port]) self.settings.setValue(baudrate, self.com_config[baudrate]) self.settings.sync() _log(fSaved settings: {self.com_config}) def open_settings_dialog(self): dialog SettingsDialog(self) dialog.port_combo.setCurrentText(self.com_config[port]) dialog.baudrate_combo.setCurrentText(str(self.com_config[baudrate])) dialog.reopen_serial_port_signal.connect(self.reopen_serial_port) dialog.exec_() self.update_status_bar() def closeEvent(self, event): # Save settings when the application is closed self.save_settings() if hasattr(self, read_thread) and self.read_thread is not None and self.read_thread.isRunning(): try: # ask the worker to stop and quit the thread if hasattr(self, read_worker) and self.read_worker is not None: self.read_worker.stop() self.read_thread.quit() self.read_thread.wait() except Exception: pass _log(Application closed. Settings saved.) event.accept() def show_info(self): # Show a message box with the tool information msg QMessageBox() msg.setText(UART COM Tool\nVersion 1.0\nCopyright (c) 2026 by oushaojun) msg.setInformativeText(This tool is used for sending and receiving data via UART COM ports.) msg.setDetailedText(This tool is implemented using PyQt5 and provides a simple GUI for UART communication. It allows users to configure COM port settings, send data, and receive data in real-time.) msg.setStandardButtons(QMessageBox.Ok | QMessageBox.Cancel) msg.setWindowTitle(Info) msg.setIcon(QMessageBox.Information) msg.resize(600, 400) retval msg.exec_() if __name__ __main__: app QApplication(sys.argv) app.setWindowIcon(QApplication.style().standardIcon(QStyle.SP_ComputerIcon)) win MainWindow() win.show() sys.exit(app.exec_())requirements.txt内容PyQt55.15.11 pyqt5_sip12.18.0 pyserial3.5