D Forum

MAX7219驱动LED特好使.MAX7219是微处理器和共阴极七段― ― 八位LED显示、图条／柱图显示或64点阵显示接口的小型串行输入／输出芯片。片内包括BCD译码器、多路扫描控制器、．字和位驱动器和8X 8静态RAM。外部只需要一个电阻设置所有LED 显示器字段电流。MAX7219和微处理器只需三根导线连接，每位显示数字有一个地址由微处理器写入。允许使用者选择每位是BCD 译码或不译码。使用者还可选择停机模式、数字亮度控制、从1～8选择扫描位数和对所有LED显示器的测试模式。-LED Driver MAX7219 so special. MAX7219 is a microprocessor and a total cathode seventh-- 8 LED display, map article/column or 64 shows a small dot-matrix display interface serial input/output chips. Chip including the BCD decoder, multiplex scan controller. Word and bit drive and 8X 8 static RAM. External resistor only need one set all LED displays current field. MAX7219 and the microprocessor only three wires to connect, each show has an address by the digital microprocessor write. Is to permit users to choose each BCD decoding or not decoding. Users can also choose to shutdown mode, the digital brightness control, 1 ~ 8 to choose from scanning the median and LED displays for all the test mode.

简单的分层管理的库存管理及查询软件，供大家交流用。-simple hierarchical management and inventory management for software used for the exchange.

图像配准的源程序，matlab编写的，试试看-image registration source, prepared by the Matlab Try

这本是sql编程必不可少的书籍,一般问题都能解决-this sql programming is essential to the books, the general problems can be solved

C++用者必看之书 启发大脑有益身心.-C users Watchable book inspired the brain healthy. Haha

一组特效javascript的例子-A set of specific examples of javascript

ssd7练习1的答案，很好的，希望能给大家带来帮助-ssd7 Exercise 1 answer, well, I hope to give us some help

用C++开发的拼图的游戏，一款益智游戏。-With C++ Developed puzzle game, a puzzle game.

经典的通信系统仿真课件，基于Matlab平台实现通信系统各个环节的仿真-Classical communication system simulation courseware, based on Matlab platform communication system simulation of all aspects of

我自己学习用的。不是什么程序，希望能得到大家的帮助。-I myself used to learn. Not a procedure, would like to have everyone s help.