X5043读写程序，非常少见的可以直接调用的源代码，对你非常有帮助...

用了不同于一般的方法做出来的矩阵键盘，效果还不错-Used methods different from the general matrix by the keyboard, the effect of good

SMC1601.Ｃ　SMC1601或SMC160２液晶用的人很多，成本低，只要十块钱一片，替代ＬＥＤ的好选择-SMC1601.C SMC1601 or SMC1602 LCD with many people, low cost, as long as a ten money, a good alternative choice LED

本文作者采用AT89C2051单片机和温度传感器DS18B20从硬件和软件两方面介绍了一款简易数字温度计的设计过程，  并对硬件原理图和程序流程图作了简洁的描述。数字温度计与传统的温度计相比，具有读数方便，测温范围广，测温准确，其输出温度采用数字显示，主要用于对测温比较准确的场所。-The author of this article using AT89C2051 MCU and temperature sensor DS18B20 from both hardware and software, introduced a simple digital thermometer of the design process, and schematic diagram of hardware and procedures were concise description of flow chart. Digital thermometer with a traditional thermometer, compared with a reading of convenience, a wide range of temperature measurement, temperature measurement accuracy, the output of the temperature digital display, mainly used for more accurate temperature measurement sites.

自动检测CPU风扇的转速，并且能够在一定范围内自动控制风扇转速，对于单片机DSP爱好者有很好的参考价值-Automatically detects the CPU fan speed, and can in a certain range of automatic control fan speed, for single-chip DSP enthusiasts have a very good reference value

开发环境：IAR Embedded Workbench Version: 3.21A 功能 使用msp430的定时器A产生信号控制led闪烁 做适当改进可用于其他-Development environment: IAR Embedded Workbench Version: 3.21A function using MSP430 timer A control signal led flashes can be used to make appropriate improvements in other

利用单片机定时计数器，测量信号频率： 利用单片机定时计数器，测量信号频率-The use of single-chip timer counters, measuring signal frequency: use of single-chip timer counters, measuring signal frequency

使用国产CH341A芯片实现USB转串口，完全兼容AVR JTAGICE，可以自动升级。 支持芯片: ATmega16(L), ATmega162(L), ATmega169(L or V), ATmega32(L), ATmega323(L), ATmega64(L), ATmega128(L). 原理图还附加了RS232接口，可以方便用户自主选择串口或USB下载程序。 还附加有可自动升级的HEX文件-The use of domestically produced CH341A chip USB to serial port, fully compatible with the AVR JTAGICE, can be automatically upgraded. Support chips: ATmega16 (L), ATmega162 (L), ATmega169 (L or V), ATmega32 (L), ATmega323 (L), ATmega64 (L), ATmega128 (L). Schematics also added a RS232 interface, can easily users to choose the serial or USB download. Additional there is also automatically upgrade the HEX file

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红外线遥控编码芯片为uPD6121G(或者是 HT622、7461等芯片)为例来说明用单片机实现红外遥控解码的详细过程，琢磨这个解码程序花了相当多的精力，期间几经修改逐步完善，后来还用它开发了几个小产品，希望能对网友学习单片机有所帮助。-Infrared remote control encoder chip for uPD6121G (or HT622, 7461, such as chips) as an example to illustrate the realization of infrared remote control with single-chip decoding of the detailed process, improve the decoding process has spent a considerable amount of energy, several amendments to gradually improve during the later It also developed several products, hope that can help users to learn single-chip microcomputer.

基于AVR单片机mega8的电表c源程序（第五部分，存储记录电能数据，读取脉冲量，及其他）-Based on the AVR Microcontroller mega8 meter c source code (part V, storing records energy data, read the pulse volume, and others)