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The LED clock consists of 60 LEDs which are placed circular around a common analog clock. The LEDs are used to display the seconds. Essential part of this circuit is the LED driver MAX7219 from Maxim. A datasheet is available on Maxim s homepage. The clock is controlled by the microcontroller AT89C2051 from Atmel. This microcontroller is clocked at a frequency of 12 MHz from which results a time base of 1 microsecond. Via software dividers one clock impulse per second is generated which is used for updating the LED display.

ADXL345 加速度计 用户手册 中文资料(ADXL345 accelerometer User Manual Chinese data)

用STM32生成2路互补的SPWM波，驱动逆变电源，具有变频功能(Generate 2-way complementary with STM32 SPWM wave inverter drive with conversion function)

说明：  3，STM32 FLASH模拟EEPROM资料(STM32 FLASH simulation EEPROM)

带字库的12864仿真软件学习带电路图和仿真软件。(12864 with a font with a circuit simulation software and simulation software to learn.)

资源描述服务器日志分析系统     > 自动间隙获取信息,记录访客的DNS及相关信息      > 提供强大的分析引擎,自动提取缓存信息 

应用背景 基于laravel 5 框架的后台基础系统。包括登录验证、用户管理，修改密码，用户权限，用户组权限，功能管理，系统日志，文件上传、工作流。目前还附加了简单的blog功能。可以快速基于此系统进行laravel5的快速开发，免去每次都写一次后台基础的痛苦。 关键技术 这是一个基于laravel 5.1框架的后台基础系统，不定期更新 请点击左侧文件开始预览 ！预览只提供20%的代码片段，完整代码需下载后查看 加载中 侵权举报

create Resume using HTML

这是一个24C256的读写控制程序，可以适应24c01~256任何一种EEPROM(This is a 24C256 to read and write control program can be adapted to any kind of EEPROM 24c01 ~ 256)

说明：  led这种裸机的程序，可以先试试手啊哦，还是可以的，欢迎交流学习(led frequently-used vi/vim commands to provide more powerful editing capability for notepad++)