基于计算机串口通信，控制SMS模块，发送图片彩信。-Computer serial communication based on SMS, control module, send pictures mms.

SIM900A 模块测试源码，Linux和windows系统都有，拨打电话、发短信，彩信、TCPIP测试程序源码-SIM900A module test source code, Linux and windows systems have, make phone calls, send SMS, MMS, TCPIP test program source code

详细介绍MMS发送过程中的文件转换,可供彩信开发人员参考()