51单片机通过模拟I2C通信接口来操控修改接触式IC卡AT24C01上面的信息，以达到身份识别的目的，还可以把金额数写入IC卡中，作为局域内的消费卡片使用-51 microcontroller simulation I2C communication interface to manipulate the contactless IC card AT24C01 modify the above information, in order to achieve the purpose of ide

利用430系列单片机与3G模块进行无线通信-430 microcontroller and use 3G wireless communication module

改程序为rs232调试程序，以pc等上位机，将此程序写入单片机，可以调试通信。-Change program for rs232 debugger to pc and other PC, this program is written microcontroller, you can debug communications.