this is my method void mensaje_sms() { int numero = 777777; // this is my variable SIM900.print("AT+CMGF=1\r"); delay(100); SIM900.println("AT+CMGS="591"numero"""); //IM900.println ("AT+CMGS="59177777777""); //only in this way does it work delay(100); SIM900.println("SEND NUMERO VARIABLE ROD…

how can I send a variable to println?

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