LED (Light Emitting Diode) display is the late 1980s and the rapid development of the new information in the global media show, It posed by the use of LED dot matrix module or modules in the area of the display screen pixel, high reliability, long lifetime, ability to adapt to the local environment, the price performance ratio and the use of low cost, in a short period of 10 years. Rapid growth in the mainstream of flat panel display products in a wide range of fields of information display applications.
This paper introduces how to design a kind of LED dot matrix display. It utilizes PC(Personal Computer)to translate basic characters into dot matrix data. Then the data are sent to the AT89C52. AT89C52 controls the LED dot matrix display utilizing the receiving data. Meanwhile, the system realizes to control the moving direction and speed of the basic characters. This article explains the LED dot matrix display system microcontroller and LED dot matrix LED dot matrix structures, and the drive to highlight the design and implementation of hardware.