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Diffstat (limited to 'examples/bluetooth/heartrate_server/heartrate_server.py')
-rw-r--r-- | examples/bluetooth/heartrate_server/heartrate_server.py | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/examples/bluetooth/heartrate_server/heartrate_server.py b/examples/bluetooth/heartrate_server/heartrate_server.py new file mode 100644 index 000000000..0696d92c2 --- /dev/null +++ b/examples/bluetooth/heartrate_server/heartrate_server.py @@ -0,0 +1,131 @@ +############################################################################# +## +## Copyright (C) 2022 The Qt Company Ltd. +## Contact: https://www.qt.io/licensing/ +## +## This file is part of the Qt for Python examples of the Qt Toolkit. +## +## $QT_BEGIN_LICENSE:BSD$ +## You may use this file under the terms of the BSD license as follows: +## +## "Redistribution and use in source and binary forms, with or without +## modification, are permitted provided that the following conditions are +## met: +## * Redistributions of source code must retain the above copyright +## notice, this list of conditions and the following disclaimer. +## * Redistributions in binary form must reproduce the above copyright +## notice, this list of conditions and the following disclaimer in +## the documentation and/or other materials provided with the +## distribution. +## * Neither the name of The Qt Company Ltd nor the names of its +## contributors may be used to endorse or promote products derived +## from this software without specific prior written permission. +## +## +## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +## +## $QT_END_LICENSE$ +## +############################################################################# + +"""PySide6 port of the bluetooth/heartrate-server example from Qt v6.x""" + +import sys +from enum import Enum + +from PySide6.QtBluetooth import (QBluetoothUuid, QLowEnergyAdvertisingData, + QLowEnergyAdvertisingParameters, + QLowEnergyCharacteristic, + QLowEnergyCharacteristicData, + QLowEnergyController, + QLowEnergyDescriptorData, + QLowEnergyServiceData) +from PySide6.QtGui import QGuiApplication +from PySide6.QtCore import QByteArray, QTimer, QLoggingCategory + + +class ValueChange(Enum): + VALUE_UP = 1 + VALUE_DOWN = 2 + + +if __name__ == '__main__': + app = QGuiApplication(sys.argv) + QLoggingCategory.setFilterRules("qt.bluetooth* = true") + +#! [Advertising Data] + advertising_data = QLowEnergyAdvertisingData() + advertising_data.setDiscoverability(QLowEnergyAdvertisingData.DiscoverabilityGeneral) + advertising_data.setIncludePowerLevel(True) + advertising_data.setLocalName("HeartRateServer") + advertising_data.setServices([QBluetoothUuid.ServiceClassUuid.HeartRate]) +#! [Advertising Data] + +#! [Service Data] + char_data = QLowEnergyCharacteristicData() + char_data.setUuid(QBluetoothUuid.CharacteristicType.HeartRateMeasurement) + char_data.setValue(QByteArray(2, 0)) + char_data.setProperties(QLowEnergyCharacteristic.Notify) + client_config = QLowEnergyDescriptorData(QBluetoothUuid.DescriptorType.ClientCharacteristicConfiguration, + QByteArray(2, 0)) + char_data.addDescriptor(client_config) + + service_data = QLowEnergyServiceData() + service_data.setType(QLowEnergyServiceData.ServiceTypePrimary) + service_data.setUuid(QBluetoothUuid.ServiceClassUuid.HeartRate) + service_data.addCharacteristic(char_data) +#! [Service Data] + +#! [Start Advertising] + le_controller = QLowEnergyController.createPeripheral() + service = le_controller.addService(service_data) + le_controller.startAdvertising(QLowEnergyAdvertisingParameters(), + advertising_data, advertising_data) +#! [Start Advertising] + +#! [Provide Heartbeat] + value_change = ValueChange.VALUE_UP + heartbeat_timer = QTimer() + current_heart_rate = 60 + + def heartbeat_provider(): + global current_heart_rate, value_change, current_heart_rate + value = QByteArray() + value.append(chr(0)) # Flags that specify the format of the value. + value.append(chr(current_heart_rate)) # Actual value. + characteristic = service.characteristic(QBluetoothUuid.CharacteristicType.HeartRateMeasurement) + assert(characteristic.isValid()) + # Potentially causes notification. + service.writeCharacteristic(characteristic, value) + if current_heart_rate == 60: + value_change = ValueChange.VALUE_UP + elif current_heart_rate == 100: + value_change = ValueChange.VALUE_DOWN + if value_change == ValueChange.VALUE_UP: + current_heart_rate += 1 + else: + current_heart_rate -= 1 + + heartbeat_timer.timeout.connect(heartbeat_provider) + heartbeat_timer.start(1000) +#! [Provide Heartbeat] + + def reconnect(): + service = le_controller.addService(service_data) + if not service.isNull(): + le_controller.startAdvertising(QLowEnergyAdvertisingParameters(), + advertising_data, advertising_data) + + le_controller.disconnected.connect(reconnect) + + sys.exit(app.exec()) |