It is a test to operate Samsung NX mount communication and bipolar stepper motor control at the same time. It uses ChibiOS/RT on Leaflabs Maple r5 board.
Samsung NX AF-Adapter NX Mount Prototyping
DIY: 3D Scanning : Samsung NX Mount Part
[DIY] Fake Samsung NX Lens!
Samsung NX Mini Interchange Lens Camera - REVIEW