Row 2 Col 8, and Row 2 Col 9 are not used. On the V2 board this is implemented as a 5x5 matrix, but in the V1, this is implemented as a scanned matrix of 9x3 (i.e. The LED matrix is physically laid out as a 5x5. Schematicsīelow is the pinmap and allocation of the nRF52833, more information is available on the micro:bit V2 schematic GPIO on nRF52833īelow, we’ve extracted some useful details about the hardware that anyone implementing software for the micro:bit, interfacing to it, or designing an add-on board for it should find useful. If you’re looking to make something of your own based on the micro:bit, you might prefer to use our ‘Reference Design’ which is based on a radio module and has space on the layout for you to add your own components. The micro:bit V2 schematic is available from the Micro:bit Educational Foundation microbit-v2-hardware repository. The micro:bit V1.3 and V1.5 schematic is available from the BBC’s micro:bit hardware repository. ![]() This page discusses the micro:bit schematic and Bill of Materials BOM, which shows the electrical connections of the micro:bit and the components used in it. Covered test points (Solder mask to be removed to access test point).
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