#fix reverse pin sockets bottom and sig port pin socket.

Added BOM file

added gerber files for production on elecrow

Fixed the location of the single line pinheader bottom side of the board.

Connected all components. And exported CAD files. The CAD file type is .step and there are two pictures of the board, front and back.

Connected some simple lines

Placed all the parts

Related all symbols and footprints

Annotated all parts

Added PWR_FLAGs in schematic connected all Power Symbol to the PWR_FLAG.