EC20 TCP/IP指令例程
串口已经调试通过；EC20 TCP/IP指令例程 具体指令如下/* Use AT+CPIN?/AT+CREG?/AT+CGREG? to query the SIM status and network registration status */[2015-09-14 13:56:10:185_S:] AT+CPIN?[2015-09-14 13:56:10:208_R:] AT+CPIN?...
