Send AT Command to GSM Module via UART

[APhuc.1]

I am having a problem with this line. When i use sprintf to send command but in this command have "", so this line is error. I want to some advice and solution to this.

Thanks

[voyvoda .]

try to use below.

sprintf(cmd, "AT+QCGDEFCONT=/"IP/",/"v-internert/"\r\");

[APhuc.1]

Thank you very much, i have try this but it seem isn't correct too, this below is error code

[TDK · Accepted solution]

Double quotes within strings need to be escaped. You need to add a backslash before them.

sprintf(cmd, "AT+QCGDEFCONT=\"IP\",\"v-internert\"\r\n");

[APhuc.1]

Thank you very much. I have understanded.