Sparx is now complete enough to walk un-tethered! There is still a lot to do, while mobile Sparx is more of a rover than a robot as none of his functions are autonomous. Soon I will be adding both a sonar distance sensor and a camera to give him some basic autonomy. He will also be equipped with a method to monitor his own charge levels and hopefully in the futue the ability to find and utilise a charging station without intervention.