这是一份Ｉ２Ｃ数据传输程序．自己写的，有识之士看看，

用可调电阻调节电压值作为模拟温度的输入量，当温度低于30℃时，发出长嘀报警声和光报警，当温度高于60℃时，发出短嘀报警声和光报警。测量的温度范围在0－99℃。-Adjustable voltage regulator with resistance values of the input analog temperature, when the temperature is below 30 ℃, the issue of longalarm sound and light alarm, when the temperature is higher than 60 ℃, short issuedalarm sound and light alarm. Measurement of the temperature range of 0-99 ℃.

at89c2051制作的超声波测距源程序 范围20cm-10m 精度1cm 如果需要电路图 请与我联系！-AT89C2051 source produced by the scope of ultrasonic rangefinder 20cm-10m accuracy 1cm circuit diagram if you need please contact me!

单片机中用于相位差测量仪的c程序，开发环境是Iar。主要运用于430 单片机-Single-chip in for the c phase difference measurement procedures, the development environment is Iar. The main application of 430 single-chip microcomputer

单片机内置USB调试固件程序,用于51单片机-MCU built-in USB debug firmware for the microcontroller 51. . .

当按下开关SP1，AT89S51单片机产生“叮咚”声从P1.0端口输出到LM386，经过放大之后送入喇叭。 -When pressing the switch SP1, AT89S51 Single-chip a " ding dong" sound from the output port P1.0 to LM386, after amplification into speakers after.

激光测距程序，MCU用的是三星的八位处理器，型号为S3C8245，如有不不明白，请发邮件到MICHEAL23・SOHU。COM-laser rangefinder procedures, the MCU is Samsung"s eight processor model S3C8245, if not do not understand, please send mail to MICHEAL23 SOHU. COM

支持SD卡的MP3电路图,powerpcb4.0格式.使用AVR单片机-support the SD card MP3 circuit diagrams powerpcb4.0 format. Use AVR

PWM波程序 可以用来控制电机调速，程序比较简单，这里只用了一个定时器就实现了。因为51单片机没有PWM波的寄存器，所以要自己用软件控制。-PWM waves program can be used to control motor speed, procedure is simple, here only a timer is realized. Because no PWM waves 51-series microcomputer to yourself, so with registers control software.

C51指令集是一关于8051指令的具体说明 包括了一些基本的程序实例-C51 instruction set is a 8051 directive on a specific description includes some basic examples of procedures

AVR单片机学习的许多简单但是非常有用的试验程序源码，对初学者极好！-AVR single-chip learning many simple but very useful source of testing procedures, excellent for beginners!