QString to QByteArray problem.

[streetsoul]

I want to sending data by UART communication.
So add below code.

QByteArray send_data;
QString value = "100000000";
send_data = value.toUtf8();
port->write(send_data.data());

In this case, when data receiving occured fail.

But if setting the value variable as "10000000"
The result is success. data receiving is success.

How can I solve this problem???

[Fuel 0]

Just use

send_data.append(value.toUtf8());

[hskoglund]

Hi, also you could check that both sides of the UART communication has the same parity settings.

[SGaist]

Hi,

No need for QString to be involved in this case.

port->write("100000000"); should be enough.