frequency, sine wave & sawtooth

[Rockerz]

how to create wave form the received data?
setting the sine amplitude and dc average create wave form how to display that wave form in qt c++ (using qcustomplot(ui->widget(promoted to customplot));

[VRonin]

One of the examples provided by qcustomplot is a plot of a cos wave (https://www.qcustomplot.com/index.php/tutorials/basicplotting) I'm sure you can adapt it for your needs