What I'm searching for is a library, class, component that allows my pc to communicate with Arduino 2009 via USB.
The USB arduino uses an FTDI USB to serial chip as its normal pc interface.
I have to connect arduino with the USB cable right
is it just for write the code in the microprocessor
I don't have to use a RS232 port on my pc or the arduino RX and TX, right?
Quoteis it just for write the code in the microprocessorThe Arduino IDE writes the code to the microprocessor using the COM port.
Watch to the list of components in the main image and in the list of images below.