QSerial Port

Mar_60

Hi everyone,

I have issues in using QSerial port. Actually, I have reading/writting data in my QT project using arduino. I have initialized my serial port in this way:

serialport = new QSerialPort(this);
serialport->setPortName("COM3");
serialport->setBaudRate(QSerialPort::Baud19200);
serialport->setDataBits(QSerialPort::Data8);
serialport->setFlowControl(QSerialPort::NoFlowControl);
serialport->setParity(QSerialPort::NoParity);
serialport->setStopBits(QSerialPort::OneStop);
qDebug()<<"Serial Port Opened"<<serialport->open(QSerialPort::ReadWrite);

After reading/writing data from arduino at desired time, I want to stop it.
I am stopping the serial port by using the command:

serial->close();

When I run my code for the first time, serial port doesn't stop. So, I stop my serial port forcefully through arduino's Serial Monitor. And then when I run my app again, it works alright. It start working perfectly 2nd time and ownwards. What I need to do, in order to close serial port in the first attempt.

Waiting for guidance

TIA,

SGaist

Hi,

What do you mean exactly by "stop it" ?

aha_1980

@Mar_60

In your code, you open serialport, but you close serial.

Might that be a problem?

Otherwise provide more code. From the snippet, its not obvious.

Regards