how to read bluetooth low energy value

SherifOmran

hello
i am trying to read bluetooth low energy value for a temperature sensor
but i have the following questions

when i studied the heartrate-game example it uses the following to get the updated value from notification

connect(m_service, &QLowEnergyService::characteristicChanged, this, &DeviceHandler::updateHeartRateValue);

void DeviceHandler::updateHeartRateValue(const QLowEnergyCharacteristic &c, const QByteArray &value)
   auto data = reinterpret_cast<const quint8 *>(value.constData());
   quint8 flags = *data;
   qDebug() << "Data Byte" << &value ;


but the low energy scanner example uses 
   qDebug() << "c.value " << c.value().toHex();

my first question:
what is the difference between value and c.value.hex ?

when i print them i get the following

c.value "00c70f00fe"
Data Byte 0x282855280

c.value "00d10f00fe"
Data Byte 0x282848bf0

c.value "00db0f00fe"
Data Byte 0x282848660

c.value "00e50f00fe"
Data Byte 0x282848c30

c.value "00ef0f00fe"
Data Byte 0x282848bf0

c.value "00f90f00fe"
Data Byte 0x282848370

which one is what ?

SherifOmran

i found the solution, they should be the same, now i can see it. it was printing the adress.

qDebug() << "Data Byte" << value.toHex() ;

niruc

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