I have recently purchased the 'small arcade joystick' of the adafruit store and the Zero Delay Encoder (from ebay), however, i can not figure out how to wire the joystick to the encoder because the encoder has 2 wires which connect to the joystick, but, the joystick only has 1 wire and 1 shared ground. I want to make a table top arcade system on the raspberry pi, would a normal usb wired joystick work with PiMame on the raspberry pi? Thanks