2.4G wireless module nrf2401 small allocation procedures. [Nrf2401

PROTEL 99SE快速入门指南，是初学者的良师益友。-PROTEL 99SE Quick Start Guide is a mentor for beginners.

凌阳公司的光敏电阻传感器源代码，代码中注有非常详细的代码功能注释。-Sunplus

STM32的工程模板,基于IAR5.40的ST固件库V3.1.0,提供GPIO实例-STM32 project template, the ST-based IAR5.40 firmware library V3.1.0, providing GPIO instance

IIC总线的c语言程序，介绍 IIC总线的时序和操作方法-IIC Bus c Language Program, introduced IIC bus timing and method of operation

pcf8563是一种实时的日历时钟芯片，它解决了计时的千年问题。-pcf8563 a real-time clock chip calendar, it has resolved a time of the Millennium problems.

ZLG7290B 是广州周立功单片机发展有限公司自行设计的数码管显示驱动及键盘扫描 管理芯片。能够直接驱动8 位共阴式数码管（或64 只独立的LED），同时还可以扫描管理 多达64 只按键。其中有8 只按键还可以作为功能键使用，就像电脑键盘上的Ctrl、Shift、 Alt 键一样。另外ZLG7290B 内部还设置有连击计数器，能够使某键按下后不松手而连续有 效。采用I2C 总线方式，与微控制器的接口仅需两根信号线。该芯片为工业级芯片，抗干扰 能力强，在工业测控中已有大量应用。-Canton weeks ZLG7290B is Ligong Singlechip Development Co., Ltd. to design the digital tube display driver and the keyboard scan management chip. Can directly drive a total of 8 vaginal digital tube (or 64 independent LED), at the same time management can also scan up to 64 keys. Which has 8 buttons can also be used as function keys, like the computer keyboard on the Ctrl, Shift, Alt keys like. Another internal ZLG7290B batter has also set up counters, can press a button and a row after不松手effective. Using I2C bus mode microcontroller interface with only two signal lines. The chip-on-chip for industry, anti-interference ability, in the industrial measurement and control has been a large number of applications.

利用单片机普通I/0口进行模拟IIC通信，从而实现24c02读写操作-The use of ordinary single-chip I/0 I mock IIC communication, reading and writing operation in order to realize 24C02

该时钟以24小时制显示时间，并可显示2000年至2049年之间的任何日期及星期，日期与时间经按键可相互切换，可输入8个闹钟时间设置，每个闹钟设置包括响铃的时间（小时与分钟）、对工作日有效还是对周末有效的标志，以及本项设置是否启用的标志等三部分。这8个闹钟设置均保存在EEPROM中，即使掉电也不用重新输入。-The 24-hour clock to display time, and shows from 2000 to 2049 and any date between the weeks, the date and time as may be mutually switch button, enter the eight alarm time settings, each set including the ringing of an alarm clock Duration (hours and minutes), the effective working days or weekends effective road signs, as well as whether or not to enable this setting, such as a symbol of three parts. This 8 alarm settings are stored in EEPROM, even brown-out do not have to re-enter.

用proteus仿真的数字电压表 有8051单片机和adc0809以及4位数码管实现-Proteus simulation with digital voltage meter 8051 and has adc0809 as well as four digital tube realize

PHP是一种新型的CGI程序编写语言,易学易用,运行速度快,可以方便快捷地编写出功能强大,运行速度快,并可同时运行于 Windows、Unix、Linux平台的Web后台程序,内置了对文件上传、密码认证、Cookies操作、邮件收发、动态GIF生成等功能,PHP 直接为很多数据库提供原本的连接,包括Oracle、Sybase、Postgres、Mysql、Informix、Dbase、Solid、 Access等,完全支持ODBC接口,用户更换平台时,无需变换PHP代码,可即拿即用. -PHP is a new type of CGI programming language, easy to learn and easy to use, run fast, you can quickly and easily write a powerful, fast, and can run on Windows, Unix, Linux platforms, Web daemon, built-in for file upload, password authentication, Cookies operations, send and receive e-mail, dynamic GIF generation features, PHP directly to many of the original database connectivity, including Oracle, Sybase, Postgres, Mysql, Informix, Dbase, Solid, Access and so on, completely support ODBC interface, user replacement of platform, without changing the PHP code, you can get that instant.