Micro:bit Otto V2 Remix -for Robot:Bit V2.0+HC-SR04

I optimized CCFIVE's original design for Robot:Bit V2.0, added the ability to use the HC-SR04, and further improved it by embedding a backpack for wiring and 6x3mm neodymium magnets inside the head cover to prevent it from opening easily. I haven't created any motions yet, but I hope you enjoy it. Finally, I'd like to thank CCFIVE for creating such a wonderful design and for making the STEP file public.