Does Qt serial port supports the QbitArray . I need to transmit the data in bit form. how am i suppose to send .

[AnilReddy]

Does Qt serial port supports the QbitArray . I need to transmit the data in bit form. how am i suppose to transit the 8-bit data to control robotic arm.

[Wieland]

@AnilReddy said:

how am i suppose to transit the 8-bit data

If you need to write only a single byte:

const char c = 0x23;
port.write(&c, 1);

Otherwise:

const QByteArray ba("Hello");
port.write(ba);

Bit manipulation is provided by the language:

c |= (1<<4); // set bit #4
c &= ~(1<<2); // clear bit #2

[SGaist]

Hi,

No QSerialPort doesn't support that. However it's not complicated to send a QBitArray. Something like:

QBuffer buffer;
buffer.open(QIODevice::WriteOnly);
QDataStream stream(&buffer);
stream << bitArray;

serialPort.write(buffer.buffer());

should do the job.

[ChrisW67]

@SGaist This will write a four-byte number representing the bit count followed by the bits according to http://doc.qt.io/qt-5/datastreamformat.html

[SGaist]

@ChrisW67 Good point ! That's indeed something to take into account when reading the data on the other side of the connection.