Input Control is a project to allow users to create and play back logs of their play sessions on retro game consoles that use serial communication controllers. Only SNES is supported in the current version, but future updates can be expanded to most types of consoles. Firmware and some code originally based on jaburn's NintendoSpy project, but it has changed a lot for consistency and otherwise.
Have you ever tried to control a self developed vehicle with your PC? This Project provides a GUi Controll, the schematics for the on board electroninc (including the xbee host) and the atmega 32 / 644 / 2550 software to get things work together.