Serial Monitor error when sending long messages

[AndrRap]

Hello,
I have tried the GPRS_SendSMS example and everything is fine when I send short messages. But when the message is longer than 30 chars, the serial monitor shows "Send SMS failed!" even f the SMS is sent and delivered correctly, not trunked.

[lanselambor]

@AndrRap Thank you for pushing this issue, the sendSMS return failure because it wasn't waiting enough time to catch "Ok",.

To fix this issue:
In GPRS_Shield_Arduino.cpp, change line 161, increase timeout number, especially chartimeout.

return sim900_wait_for_resp("OK\r\n", CMD, 5, 5000);