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数码6位数码管时钟程序2222
6 位数码管多功能时钟程序
74HC164驱动LED 显示
74hc138进行位选
Creat By: 单片东东
2004.12.28 bian xie-six digital clock control procedures 2222 6-bits digital clock control procedures 74HC164 multifunctional LED Display Driver 74hc138 for Creat
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此程序为使用单片机,通过74hc595以及74hc138进行行列扫描,最终在LED上显示滚动的汉字。-This procedure for the use of SCM, and 74hc138 to the ranks by 74hc595 scan, eventually rolling LED display Chinese characters.
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8位数码管动态扫描显示实验(显示不用库函数)
*显示用指针直接访问GPIO端口的输出寄存器,形式GPIOD->ODR
*延时delay_nms(5)时,显示不闪烁
*74HC138 A--P2.2--PE.0 B--P2.3--PE.1 C--P2.4--PE.2
*74HC573 D0~D7---PD[0..7] LE---PE.3
*by 追梦 2011-4-3-8-bit digital dynamic scan showed that the experimen
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本设计是一16×16点阵LED电子显示屏动态显示以及远程监控的实现。整机以美国ATMEL 公司生产的40脚单片机AT89C51为核心,介绍了以它为控制系统的LED点阵电子显示屏的动态设计和开发过程。通过该芯片控制两个行驱动器74HC138和两个列驱动器74HC595来驱动显示屏显示。-The design is a 16 × 16 dot matrix LED display dynamic display and remote monitoring to achieve. Machine pr
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1/4led扫描显示屏。16-32点阵的上下左右移,硬件用一个74hc138作位选和16个74hc595连接而成的.-1/4led scan display. Up and down about 16-32 lattice shift, bit selection and 16 74hc595 connection from the hardware using a 74hc138.
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基于74hc595和74hc138的16x40点阵显示,自己制作LED显示屏驱动,带程序和硬件说明-Produce their own LED display driver with programs and hardware descr iption 74hc595 and 74hc138 of, 16x40 dot matrix display
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公交车上可以滚动显示的LED显示屏仿真。基于AT89C52单片机,行列都是用74HC138译码器。-Buses can scroll the display LED display emulation. Based on AT89C52, the ranks are used 74HC138 decoder.
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本设计通过51单片机作为微控制器,74HC138作为LED 点阵模块的行驱动器,74HC595作为LED点阵模块列驱动器,采用了51单片机的串行输入输出功能,即同步移位通信技术,通过proteus仿真,有keil源代码,可以更改字库代码显示任何字符汉字-This design by 51 single chip micro-controller, 74HC138 LED dot matrix modules, line drives, 74HC595 LED dot matrix module
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