[Help] arduino sim900 shield dose not parse full sms (>140 character)

Official Hardware Retired GSM Shield
1

Hi everyone!
I have project with arduino sim900 shield and arduino UNO R3!
I use GSMSHIELD code library at GitHub - jefflab/GSMSHIELD: Arduino SIM900 library - with improvements.
It had worked very well but have 1 problems with sms receive (more 140 character).
Example if i send sms with 150 character to my arduino sim900, it just parse 138 character (Not full sms)
I search this problems on Google but i don't find any right answer :frowning:
Please help me, thank you so much :slight_smile:

2

I am not familiar with the library you are using, but a possible reason might be a too small input buffer. 138 characters + CR + Zero at the end of the string = 140;

Look for the buffer size definition in the library with size 140.

SupArdu

3

Thank for your help!
I know, I try edit Getsms function but I can't find any size variable with value 140 :frowning:

4

[SMS messages are LIMITED to 140 chars per single message.]
For longer messages, you may try PDU mode or multi-part messages if your modem supports them.