text: #ifndef __AT_COMM__
  #define __AT_COMM__
  
  #ifdef __WINX__
      #define EOSchar     '\000'
  #elif  __STM32__
      #define EOSchar     '\0'
  #endif
  
  #define AT_PRESENSE            "AT"
  
  #define AT_ECHOOFF             "ATE0"
  
  #define AT_ECHOON              "ATE1"
  
  #define AT_GET_VENDOR          "AT+CGMI"
  #define AT_GET_MODEL           "AT+CGMM"
  
  #define AT_USSD                "AT+CUSD" // ?, =?, \r, =<int>,<char>,<int>
  
  #define AT_PINCODE             "AT+CPIN"
  #define AT_PIN2CODE            "AT+CPIN2"
  
  #define AT_SET_PDUMODE         "AT+CMGF"
  #define AT_SEND_PDUSMS         "AT+CMGS"
  
  #define AT_GPRS_RESET          "AT+CIPSHUT"
  #define AT_CGATT               "AT+CGATT"
  #define AT_CONN_SETTINGS       "AT+CGDCONT"
  #define AT_APN_SETTINGS        "AT+CSTT"
  #define AT_GPRS_START          "AT+CIICR"
  #define AT_GPRS_GETIP          "AT+CIFSR"
  #define AT_GPRS_STATUS         "AT+CIPSTATUS"
  
  #endif // __AT_COMM__
  