I am pretty new of Arduino and I am only a high level software programmer so I am not so skilled about microprogramming. So, please excuse me if my questions are too stupid. I have a Diecimila with USB port and I have already done a project for sending to a PC data read from a sensor. So far everything goes well. Now I would like to avoid the use of a PC and to directly connect Arduino to a USB pen drive that will store all the data that were previously sent to the PC. My question is about the way in which this can be possible. I am aware of the article "Writing data to USB memory stick" http://www.arduino.cc/playground/Main/UsbMemory but I am wondering if the ftdi viniculum chip (or any other USB controller) is still needed even if I already have a USB port. If so, how can I connect it to the Diecimila? Reading the specifications it appears that the serial pins are already hooked to the FT232RL.
Any comments are very welcome