98 lines
4.0 KiB
C++
98 lines
4.0 KiB
C++
// Copyright (C) 2017 The Qt Company Ltd.
|
|
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
|
|
|
|
#include <QtBluetooth/qlowenergyadvertisingdata.h>
|
|
#include <QtBluetooth/qlowenergyadvertisingparameters.h>
|
|
#include <QtBluetooth/qlowenergycharacteristic.h>
|
|
#include <QtBluetooth/qlowenergycharacteristicdata.h>
|
|
#include <QtBluetooth/qlowenergydescriptordata.h>
|
|
#include <QtBluetooth/qlowenergycontroller.h>
|
|
#include <QtBluetooth/qlowenergyservice.h>
|
|
#include <QtBluetooth/qlowenergyservicedata.h>
|
|
#include <QtCore/qbytearray.h>
|
|
#ifndef Q_OS_ANDROID
|
|
#include <QtCore/qcoreapplication.h>
|
|
#else
|
|
#include <QtGui/qguiapplication.h>
|
|
#endif
|
|
#include <QtCore/qlist.h>
|
|
#include <QtCore/qloggingcategory.h>
|
|
#include <QtCore/qscopedpointer.h>
|
|
#include <QtCore/qtimer.h>
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
// QLoggingCategory::setFilterRules(QStringLiteral("qt.bluetooth* = true"));
|
|
#ifndef Q_OS_ANDROID
|
|
QCoreApplication app(argc, argv);
|
|
#else
|
|
QGuiApplication app(argc, argv);
|
|
#endif
|
|
|
|
//! [Advertising Data]
|
|
QLowEnergyAdvertisingData advertisingData;
|
|
advertisingData.setDiscoverability(QLowEnergyAdvertisingData::DiscoverabilityGeneral);
|
|
advertisingData.setIncludePowerLevel(true);
|
|
advertisingData.setLocalName("HeartRateServer");
|
|
advertisingData.setServices(QList<QBluetoothUuid>() << QBluetoothUuid::ServiceClassUuid::HeartRate);
|
|
//! [Advertising Data]
|
|
|
|
//! [Service Data]
|
|
QLowEnergyCharacteristicData charData;
|
|
charData.setUuid(QBluetoothUuid::CharacteristicType::HeartRateMeasurement);
|
|
charData.setValue(QByteArray(2, 0));
|
|
charData.setProperties(QLowEnergyCharacteristic::Notify);
|
|
const QLowEnergyDescriptorData clientConfig(QBluetoothUuid::DescriptorType::ClientCharacteristicConfiguration,
|
|
QByteArray(2, 0));
|
|
charData.addDescriptor(clientConfig);
|
|
|
|
QLowEnergyServiceData serviceData;
|
|
serviceData.setType(QLowEnergyServiceData::ServiceTypePrimary);
|
|
serviceData.setUuid(QBluetoothUuid::ServiceClassUuid::HeartRate);
|
|
serviceData.addCharacteristic(charData);
|
|
//! [Service Data]
|
|
|
|
//! [Start Advertising]
|
|
const QScopedPointer<QLowEnergyController> leController(QLowEnergyController::createPeripheral());
|
|
QScopedPointer<QLowEnergyService> service(leController->addService(serviceData));
|
|
leController->startAdvertising(QLowEnergyAdvertisingParameters(), advertisingData,
|
|
advertisingData);
|
|
//! [Start Advertising]
|
|
|
|
//! [Provide Heartbeat]
|
|
QTimer heartbeatTimer;
|
|
quint8 currentHeartRate = 60;
|
|
enum ValueChange { ValueUp, ValueDown } valueChange = ValueUp;
|
|
const auto heartbeatProvider = [&service, ¤tHeartRate, &valueChange]() {
|
|
QByteArray value;
|
|
value.append(char(0)); // Flags that specify the format of the value.
|
|
value.append(char(currentHeartRate)); // Actual value.
|
|
QLowEnergyCharacteristic characteristic
|
|
= service->characteristic(QBluetoothUuid::CharacteristicType::HeartRateMeasurement);
|
|
Q_ASSERT(characteristic.isValid());
|
|
service->writeCharacteristic(characteristic, value); // Potentially causes notification.
|
|
if (currentHeartRate == 60)
|
|
valueChange = ValueUp;
|
|
else if (currentHeartRate == 100)
|
|
valueChange = ValueDown;
|
|
if (valueChange == ValueUp)
|
|
++currentHeartRate;
|
|
else
|
|
--currentHeartRate;
|
|
};
|
|
QObject::connect(&heartbeatTimer, &QTimer::timeout, heartbeatProvider);
|
|
heartbeatTimer.start(1000);
|
|
//! [Provide Heartbeat]
|
|
|
|
auto reconnect = [&leController, advertisingData, &service, serviceData]()
|
|
{
|
|
service.reset(leController->addService(serviceData));
|
|
if (!service.isNull())
|
|
leController->startAdvertising(QLowEnergyAdvertisingParameters(),
|
|
advertisingData, advertisingData);
|
|
};
|
|
QObject::connect(leController.data(), &QLowEnergyController::disconnected, reconnect);
|
|
|
|
return app.exec();
|
|
}
|