Connect Arduino to a PC with either USB or VGA.
V-USB is a software-only implementation of a low-speed USB device for Atmel's AVR® microcontrollers, making it possible to build USB hardware with almost any AVR® microcontroller, not requiring any additional chip.Runs on any AVR microcontroller with at least 2 kB of Flash memory, 128 bytes RAM and a clock rate of at least 12 MHz.No UART, timer, input capture unit or other special hardware is required (except one edge triggered interrupt).
I also want to know if an arduino could access the computer throw VGA (rs232). And that means not an answer like "no" or "not possible".
Dubz, with USB HID you don't need drivers since they are standard in most O/S's.You can make an ATTiny with only 8 pins look like a USB keyboard to many PC's for less than $5 in parts.The 'control program' is called a Console Window, Command Terminal, Shell Interface. -Anything- that can type into one can do a lot to direct operations of the PC. And how hard is it to have a Console run at Startup?
I think what you want is for sale here for $79.99:http://hakshop.myshopify.com/collections/frontpage/products/usb-rubber-ducky
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