That is HW (PCB) reference "number" (or codename if you want). If you build for this target in nRF5 SDK you use this in global defines, BSP (Board Support Package) header files etc.
That is HW (PCB) reference "number" (or codename if you want). If you build for this target in nRF5 SDK you use this in global defines, BSP (Board Support Package) header files etc.
