Problem sending data over to serial port

[jefftee]

Are you entering integer values into the textedit? i.e. 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19, 20,21? If so, you should be converting to integer using base 10, which is the default for QString::toInt. Your code above is treating your input as hex values, not integer.

For your code to work as shown, you'd need to be entering hex values: 0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F,10,11,12,13,14,15.

[hovuquocan1997]

Thank you very much! That was the case.