关键词: LED 单片机 电子显示屏 驱动
ABSTRACT
This article is about the design of information display system based on MCU with LED electronic screen . This electronic screen can display a variety of texts as well as images of single dot of red colour . Four 8*8 dot matrix LED display module form a 16*16 dot matrix display module. Four 16*16 Chinese characters can be displayed on the full-screen. It means that the pixel is 16*64.
The MCU STC89C51RC is the core of the controller in this design , and the 74HC595 is the row driver , besides the 74HC154 is the line scanning driver . I will use protel to design the Structure diagram, proteus to be the hardware simulation,keilC to be the programming tool.
The characters or images in the design are steady,clearness and with no rosstalk,it can make the characters or images many display ways just like still,in and out and so on.It has the features like the simple structure,low-price,so ,it is applied extensively.
Keywords: LED Microprogrammed Control Unit(MCU) Electronic screen Driver