If you have PS 1 or PS 2 joystick and you want use it for USB. Well this microcontroller project could resolve your problem now. PS2USB converts two Playstation 1 or Playstation 2 converter into usb josysticks. It also features the Dance Pad Code (Up+START+SELECT), so that it can be used in DDR games (tested with Stepmania). Works under Linux, Mac OSX, Windows.
source code and schematic
search term : PS to USB, Converter, Microcontroller Project (src)
note : no picture for the project, i just replace it with analog PS 1 joystickDownload :
source code and schematic
search term : PS to USB, Converter, Microcontroller Project (src)