As Pi Wars approaches its 5th year, we want to tell you why and how we put on a two day competitive event that challenges teams of school children, their teachers, families and adults to make robots. The robots are all built with the Raspberry Pi as the main controller, but apart from a size limit, teams can do whatever they like. And what they do even surprises us! Come and find out how robots are more than just radio controlled cars; they are art and engineering combined!