I am trying to complete a project where I can interface an arduino uno with a GUI on RAD studio via the serial port USB. It must be written in C++ and the GUI has to be on RAD studio. My main problem is I don't really know how the interface works via the USB cable and all the GUI arduino projects online are using something other than RAD studio. In addition, they are all written in the arduino language. I am going to try and just copy the code into RAD studio and see what happens.
I know C++ a fair amount and all the the GUI has to allow me to do is something simple like flash some LEDs.