51系列单片机读卡程序，本人亲测，适合考勤、门禁。

优点：中断中只做很少的事情，通常我是在接收中断中post一个信号量，触发别的任务读数据-Advantages: only a small interruption in the things I usually post in the receiving a signal interruption in the amount of time to trigger other mission data

单片机通信或者远距离数据传输系统中做CRC校验的c源程序。可以嵌入到系统中直接运用。-SCM communication or remote data transmission system so CRC c source. Can be embedded directly into the system use.

cstn 1.5 with ST7636的C51测试程序.-cstn ST7636 1.5 with the C51 test procedures.

本程序采用AVR单片机实现对温度传感器DS18B20的控制-This procedure used to realize single-chip AVR temperature sensor control DS18B20

电动车里程表,安装在自行车上,能显示当前速度,显示总里程数,可以用来做别的,抛砖引玉-Electric vehicle odometer, installed on the bike, can display the current speed, showing the total mileage that can be used to do anything else, start

ＡＤＣ０８０４程序设计是和ＡＤＣ０８０８相似-ADC0804 and ADC0808 program design is similar to

使用结构体形式编写的串行通信的例程，供需要的人参考-Using the structure prepared in the form of serial communication routines for those who need it for reference

显示数据处理（拆数字）.mcu控制LCD显示数字时的拆数程序，可拆int型整数和float型浮点数，所拆数存放于全局变量 数组中。-Show the data processing (down figure). Mcu control the LCD shows the number of figures at the time of demolition procedures, removable int type integer and float-type floating-point numbers, the demolition of a few global variables stored in the array.

用此源代码，可以用于继电器测试仪的开发，通过继电器测试仪可以测试继电器的状态等-Use this source code, can be used to relay tester development, through the relay tester can test the status of relays, etc.

这是一个电池放电器，能够很好的工作。谢谢！-This is a battery of electrical appliances up to a good job. Thank you!