Bluetooth communication timing device for speed cube

A magic cube timing device based on Bluetooth communication, comprising a timer main body and a non-slip mat, wherein the timer main body is fastened to the non-slip mat, the timer main body comprises a main body housing, a main control PCB board, a display apparatus, and two magnetic surface stickers, both the display apparatus and the magnetic surface sticker are mounted on an outer surface of the main body housing, the magnetic surface stickers are located on two sides of the display apparatus, the main control PCB board is mounted inside the main body housing, two through holes are disposed in the main body housing, one end of the magnetic surface sticker penetrates through the through hole to connect to the main control PCB board, a Bluetooth module is disposed on the main control PCB board, the Bluetooth module is connected to an external terminal, two battery apparatuses are disposed inside the main body housing, the battery apparatuses are connected to the main control PCB board, and the two battery apparatuses are center-symmetric with the center point of the main body housing as the center of symmetry, wherein the main body housing comprises a main body surface housing and a main body bottom housing, the main body bottom housing is fastened to the non-slip mat, the main body bottom housing is snapped to the main body surface housing, and both the display apparatus and the magnetic surface sticker are mounted on the main body surface housing, wherein the main body surface housing is an open surface housing, a conductive optical fiber is fixedly mounted at an opening of the main body surface housing, a light guide PCB board is disposed inside the main body surface housing, and the light guide PCB board is connected to both the battery apparatus and the conductive optical fiber.