My computer will not recognize my Uno after it has worked properly for about a month. I did try and drive the dc motors on my robot from the 5V header on the board, so I dont know if I drew too much current and destroyed something on the board or chip itself. My computer keeps saying "one of the USB devices has malfunctuned and is not recognized." Has anyone had this problem? Tried to re-install the drivers but it says they are up to date.
Also, does anyone know an easy way to see if the chip or the board is damaged?