《模拟I2C总线多主通信的通用软件包》,支持多主竞争，比如有多个单片机和I2C器件同时工作。...

座机短信发送平台，LCM显示发送和接受号码显示源程序。LCM1206类型-jet sent SMS platform, LCM revealed sending and receiving numbers indicate the source. LCM1206 types

本程序是一个4*4键盘扫描程序. 可以用于初学者对于单片机的开发.-this program is a 4* 4 keyboard scanning procedures. Beginners can be used for the development of SCM.

DAC1230是一个12位的模数转换的芯片!而使用时候是在8位的单片机上运行,所以需要注意高四位和低八位的写入时序-DAC1230 is a 12-bit analog-digital conversion chips! Use of time in the 8-bit single-chip run, so it is necessary to pay attention to the high four and low eight write timing

这是一个在proteus软件上仿真的例子。对学习proteus这个软件具有很好的了解。-This is a software simulation in proteus example. Proteus in learning this software has a very good understanding.

对充电过程进行更精确的监控，以缩短充电时间、达到最大的电池容量，并防止电池损坏-Charging process of a more precise control, so as to shorten the charging time to reach the largest battery capacity, and to prevent battery damage

keil里面的例子，看看把-example, to see if the he

收集到的一些常用功能模块，有温度传感、星期计算、一按键都能等-Collected some frequently used function modules have temperature sensing, weeks, and so one button can

数据采集系统作为沟通模拟域与数字域的必不可少的桥梁有着非常重要的作用。本文介绍的重点是数据采集系统。数据采集与通信控制采用了模块化的设计，数据采集与通信控制采用了单片机8051来实现，硬件部分是以单片机为核心，还包括模-数转换模块，显示模块，和串行接口部分，还有一些简单的外围电路。8路被测电压通过通用ADC0809模-数转换，实现对采集到的数据进行模拟量到数字量的转换，由单片机对数据进行处理，用LCD显示模块来显示所采集的结果，并将数据通过串行口传输到PC机上，MCU与 PC机间的电平匹配采用MAX232接口芯片，由PC机完成数据接收和显示，VB程序编写了更加人性化的人机交互界面。-Data Acquisition System Analog domain as communication with the figure of the indispensable bridge between the domain has a very important role. This article focuses on the introduction of data acquisition system. Control data acquisition and communication of the use of a modular design, data collection and communications control to the use of a 8051 single-chip implementation, the hardware part of the single-chip microcomputer as the core, but also mold- digital conversion module, display module, and serial interface part, have some simple external circuit. 8 road test voltage through the common mode ADC0809- conversion, implementation of the collected data to the digital analog conversion, the

网上找到的PCF8563程序基本不能用 本程序基于51单片机，模拟了I2C接口，现已调试成功，可以做成万年历了

用单片机I/O口模拟总线形式的通用驱动程序，用C51编写-MCU I/O simulation generic form of bus drivers, prepared with C51