华为公司3G工业无线模块EM770的所有资料，包括模块具体资料以及在windows和linux下的驱动-Huawei 3G industrial wireless module EM770 all information, including specific information on the module and the drive under windows and linux, etc.

sim300GSM/GPRS无线通信模块开发资料，很全的哦。-sim300GSM/GPRS wireless communication module development information, it is full of oh.