cw1200

说明：  ltc6811的使用配置程序，可以直接使用。(ltc6811,SPI use,can directly use)

两路电压表，0809可以实现两路的模数转换(Two way voltmeter )

刚才上传的频率计程序可能不太好，现在这个计数外部脉冲的程序，还是较好的，只是得自己从中截取出来(Just upload the program may not be a good frequency counter, and now this external pulse count procedures, or better, just get yourself out from the interception of)

说明：  基于51单片机的计算器，5*4矩阵键盘，包含仿真工程文件和程序工程文件，还有word资料(Calculator based on 51 single chip microcomputer, 5 * 4 matrix keyboard, including simulation engineering files and program engineering files, as well as word data)

基于STC单片机系列开发，本源码基于STC15W4K56S4开发，IIC控制实时时钟芯片DS3231,开发者可通过更改IIC控制引脚定义，可直接用于不同种类的单片机，直接调用函数即可实现时间设置及时间读取，以及相关配置。(STC microcontroller family based on the development, the source STC15W4K56S4 based development, IIC control the real-time clock chip DS3231, developers can change the IIC control pin definitions, can be directly used for different types of single-chip, direct call function can be realized time setting and the time to read take, and related configurations.)

笙泉单片机ma82g5b32的例程代码，可解压使用(The routine code of Shengquan MCU ma82g5b32 can be decompressed and used)

说明：  可以用来参考RRN8302B校表设计，基于51系列单片机，可参考使用(Can be used for reference RRN8302B calibration design,Based on 51 series MCU, it can be used for reference.)

DS18B20 单线数字温度传感器，即“一线器件”，其具有独特的优点：采用单总线的接口方式 与微处理器连接时 仅需要一条口线即可实现微处理器与 DS18B20 的双向通讯。 ( DS18B20-wire digital temperature sensor, that is, first-line devices, it has unique advantages: Only one port line interface mode when using a single bus connection can be realized with a microprocessor of the microprocessor and DS18B20)

实现一基于单片机的电子密码锁的设计,电子密码锁的设计主要由三部分组成：矩阵键盘接口电路、密码锁的控制电路、最小系统。另外系统还有LED提示灯，报警蜂鸣器等。(Realization of a microcontroller based electronic password lock design, the design of electronic password lock consists of three parts: matrix keyboard interface circuit, password lock control circuit, the minimum system. In addition, the system also has LED tips, alarm buzzer, etc..)

用Matlab2012搭建的HERIC拓扑单相并网逆变器仿真模型，可以正常运行。(HERIC Single Phase Invertor Simulator Model。)