pyqt5实现蓝牙上位机与stm32，代码实现

好的，以下是一个简单的示例代码，展示如何使用PyQt5实现蓝牙上位机与STM32的通信。该示例使用HC-05蓝牙模块和STM32F103开发板进行通信，使用了PyQt5中的QBluetooth和QSerialPort模块。

import sys
from PyQt5.QtWidgets import QApplication, QMainWindow, QPushButton, QTextEdit
from PyQt5.QtCore import QIODevice, QByteArray, pyqtSignal, pyqtSlot
from PyQt5.QtSerialPort import QSerialPort, QSerialPortInfo
from PyQt5.QtBluetooth import QBluetoothDeviceDiscoveryAgent, QBluetoothSocket

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

        # 初始化串口和蓝牙设备
        self.serial_port = QSerialPort()
        self.bluetooth_socket = QBluetoothSocket(QBluetoothServiceInfo.RfcommProtocol)

        # 初始化界面
        self.init_ui()

        # 初始化蓝牙设备发现器
        self.device_discovery_agent = QBluetoothDeviceDiscoveryAgent()
        self.device_discovery_agent.deviceDiscovered.connect(self.device_discovered)

    def init_ui(self):
        # 设置主窗口标题和大小
        self.setWindowTitle('Bluetooth Upper Computer')
        self.setGeometry(200, 200, 500, 500)

        # 设置搜索设备按钮
        self.search_btn = QPushButton('Search Devices', self)
        self.search_btn.setGeometry(50, 50, 100, 30)
        self.search_btn.clicked.connect(self.search_devices)

        # 设置连接设备按钮
        self.connect_btn = QPushButton('Connect Device', self)
        self.connect_btn.setGeometry(200, 50, 100, 30)
        self.connect_btn.setEnabled(False)
        self.connect_btn.clicked.connect(self.connect_device)

        # 设置发送数据按钮
        self.send_btn = QPushButton('Send Data', self)
        self.send_btn.setGeometry(350, 50, 100, 30)
        self.send_btn.setEnabled(False)
        self.send_btn.clicked.connect(self.send_data)

        # 设置文本编辑框
        self.text_edit = QTextEdit(self)
        self.text_edit.setGeometry(50, 100, 400, 300)

    def search_devices(self):
        # 开始搜索蓝牙设备
        self.device_discovery_agent.start()

    def device_discovered(self, device_info):
        # 当发现蓝牙设备时，将其名称和地址显示在界面上
        device_name = device_info.name()
        device_address = device_info.address().toString()
        self.text_edit.append('Device Found: ' + device_name + ' (' + device_address + ')')

    def connect_device(self):
        # 连接所选的蓝牙设备，并打开串口
        device_address = self.selected_device.address().toString()
        self.bluetooth_socket.connectToService(device_address, QBluetoothUuid.SerialPort)
        self.serial_port.setPortName('COM3')
        self.serial_port.setBaudRate(QSerialPort.Baud9600)
        self.serial_port.setDataBits(QSerialPort.Data8)
        self.serial_port.setParity(QSerialPort.NoParity)
        self.serial_port.setStopBits(QSerialPort.OneStop)
        self.serial_port.setFlowControl(QSerialPort.NoFlowControl)
        self.serial_port.open(QIODevice.ReadWrite)

        # 显示连接状态，并启用发送数据按钮
        self.text_edit.append('Device Connected: ' + self.selected_device.name())
        self.send_btn.setEnabled(True)

    def send_data(self):
        # 从文本编辑框中获取发送的数据，并发送到串口
        data = self.text_edit.toPlainText().encode()
        self.serial_port.write(data)

    def closeEvent(self, event):
        # 关闭窗口时，关闭串口和蓝牙连接
        self.serial_port.close()
        self.bluetooth_socket.close()

    # 重载QIODevice的readyRead信号，当串口有数据可读时，将其显示在界面上
    @pyqtSlot()
    def ready_read(self):
        data = self.serial_port.readAll()
        self.text_edit.append('Received: ' + str(data, 'utf-8'))

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

以上代码仅为示例，您需要根据实际情况进行修改和完善。同时，您需要安装PyQt5、PyQt5.QtSerialPort和PyQt5.QtBluetooth模块才能正常运行该程序。希望对您有所帮助！