I am still not clear about the depth sensor part. What should be the reference for depth? If we define a reference then simple sound wave or radio wave can be use for depth. But if it is more complex then i donot know.
January 2016 Cartoon Caption ContestBob's punishment for missing his deadline was to be tied to his chair tantalizingly close to a disconnected cable, with one hand superglued to his desk and another to his chin, while the pages from his wall calendar were slowly torn away.122 comments