This is a LEGO compatible bottom case specially designed for Robotbit(expansion board for micro:bit). Not just a protection, much more interesting projects can be built through the case and LEGO.

●  perfect protection for robotbit, make it more durable.

●  standard holes for LEGO building, free your imagination

●  match with robot car chassis, quick disassembling

●  square hole designed for magnet, teaching is more convenient