Image copyright BBC. No infringement intended.

Doctor Who fan William Reichardt decided that he wanted to do an electronics project that would bring together a Raspberry Pi and an Arduino. Being the Whovian he is he decided to recreate the Doctor’s faithful canine companion K9.

So far, he has built the basic chassis (read about it here) and has now moved onto the electronics he’ll need to make the robot move (read more here). He estimates that the whole thing will take him about three years and he’s about a year into the build already – his first prototype for the chassis was made out of cardboard!