在Windows操作系统上通过PyQT5 QT蓝牙模块通过UUID发现特定的GATT服务

2024-09-24 20:28:42 发布

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我正在使用PyQT5库在windows下编写一个BLE客户端。我能够使用以下代码快照发现所有服务:

        if self.controller is None:
            self.controller = QtBluetooth.QLowEnergyController.createCentral(self.currentDevice.get_device())
            self.controller.connected.connect(self.controller_connected_handler)
            self.controller.error.connect(self.controller_error_handler)
            self.controller.disconnected.connect(self.controller_disconnected_handler)
            self.controller.serviceDiscovered.connect(self.controller_service_discovered_handler)
            self.controller.discoveryFinished.connect(self.controller_discovery_finished_handler)

        if self.is_random_address():
            logging.info("Random Address")
            self.controller.setRemoteAddressType(QtBluetooth.QLowEnergyController.RandomAddress)
        else:
            logging.info("Public Address")
            self.controller.setRemoteAddressType(QtBluetooth.QLowEnergyController.PublicAddress)

        self.controller.connectToDevice()

其中,“控制器\服务\发现的\处理程序”回调在每次发现新服务时执行

@pyqtSlot(QtBluetooth.QBluetoothUuid)
    def controller_service_discovered_handler(self, service_uuid: QtBluetooth.QBluetoothUuid):
        service = self.controller.createServiceObject(service_uuid)
        if not service:
            logging.warning('Warning: Cannot create service for uuid')
            return
        service_info = ServiceInfo(service)
        # Note that ServiceInfo is a user-defined wrapper
        logging.debug(f"New service was discovered: {service_info.serviceName} {service_info.serviceUuid}")
        self.m_services.append(service_info)

然而,我想知道“PyQT5”lib是否支持通过特定的GATT服务的UUID来发现服务,而不是使用基于回调的方法来发现所有服务? (我需要这个,因为一些BLE设备手册建议使用特定的服务发现方法,我需要按照建议的流程来解决我目前面临的一些问题)

链接到底层的C++ QLoWielyCube实现 https://doc.qt.io/qt-5/qlowenergycontroller.html


Tags: selfinfoifuuidisloggingconnectservice