char a = "hi, hi, hi\r\n my,my,my
err = modem.sendsbdtext(a);
When you do Iridium satellite communication by sbdsend in the code above,i can only receive the first line above.
The above is a simple example, and to be exact, I want to call up the csv file stored on the sd card and save it in variable a and see it on my computer using Iridium satellite communication, but I can't receive the first line whenever I communicate. Can't we get an entry from iridium communication? Or I'd appreciate it if you could give me an answer.