Raspberry Pi sonar distance measuring Robot - a walking aid [150401]

Raspberry Pi distance measuring robotics - Blind man's aid For Games, Microsoft Windows is king, for networking Linux or Unix is king but for small scale automation where power consumption is a major factor, Raspberry Pi has got a place now. Arduino can do to a certain extent but Arduino is a mere microprocessor, it can be a perfect slave but not a master like Raspberry Pi. Raspberry Pi can monitor, administer and can also execute.