How to send the Data from Qt App to Arduino by serial communication
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@sankarapandiyan said in How to send the Data from Qt App to Arduino by serial communication:
Is it possible to open the port in both Qt app and Arduino in a same OS
Not sure what you mean? If both devices run same OS then yes.
"i got a error the port is changed or not found" - then make sure you're using correct port!
"I got a error message in Qt as (PERMISSION ERROR)" - then make sure your user has access right like I suggested above.
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@sankarapandiyan said in How to send the Data from Qt App to Arduino by serial communication:
Is it possible to open the port in both Qt app and Arduino in a same OS ..
If you have 2 apps on the same computer that want to use the same serial port, then only one of the programs can use the serial port at a time.
When App 1 opens a serial port, App 2 cannot use the same serial port. App 2 must wait until App 1 closes the port.
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