ZLG_SD读写模块V2.0 SD卡读写程序，拿过来就能用，支持SD卡2G-SD card reader program, to take over will be able to use, support SD card 2G

这是一款2G功能的gsm通讯模块的资料，可以用来进行短信，gprs,打电话的功能-This is a 2G function gsm communication module information, can be used to SMS, gprs, call the phone