Design of Large Electronic Display Based on SCM
Abstract: The LED display show scenes colorful, stereo sense is strong, quiet as oil painting, move such as movies, widely used in stations, docks and airports, shopping centers, hospitals, hotels, Banks, securities market, construction market, auction houses, industrial enterprise management and other public places .
It is easy to accomplish the MCU and PC for internal data transmission equipment and it also can be used conveniently to show a variety of content changes. Because it is widely used, the design has a strong practical application.
This design uses AT89C51 MCU as a main controller, and depends on a simple external circuit to drive 16×16 the lattice LED display. The LED Display dynamic scan can show 16 × 16 dot matrix Chinese characters. Because serial transmission is used, the system can be enhanced scalability, for a number of display units of the cascade.
Keywords :Dynamic Display; MCU; Serial Data Transfer