[Hazer] managed to take a PlayStation 3 SixAxis controller and modify it so that all of the buttons can be remapped in hardware. Aside from this being really cool, he had a good reason for doing it. Regular readers should remember the feature regarding [Chuck Bittner's] internet petition calling for button mapping as a feature in all games. As the industry still hasnít taken up the torch in this area, [Hazer] developed this mod for [Chuck] to use and has released it for any others out there who wish to give it a try.
The hardware alterations are pretty hardcore. On the left of the image, just below the rumble motor, a DIP microcontroller is nestled dead-bug style. This is a PIC 18F14K50. Itís running a bootloader, and has its own USB port on the opposite side of the controller. By cutting traces and soldering to vias, this chip intercepts button presses and shoots them off to the controllerís processor based on alternative mapping stored in EEPROM. Thereís a helper app that lets you plug the controller into a computer to specify what each button does, including features like toggle for the buttons. Check out [Chuck's] thoughts on the hardware in the video after the break.

http://hackaday.com/2011/10/11/plays...ly-remappable/