How to increase maximum payload size to transmit using SODAQ ONE v3

Hello everyone,

I am using an SODAQ ONE v3 board to send my data to ChirpStack Network.
The maximum length of the payload to transmit successfully is 115 bytes (I’ve checked on it) but my message’s length is around 150 bytes.

Should I look into the library and then modify the constant that limits this length? Otherwise, I must cut my message into pieces.

Thank you.

Hi @Vu_Anh_Minh_Le,

The payload length depends on the spreadingfactor.
The maximum payload length in SF12 is 50 bytes.
When you have adaptive data rate enables it’s best to stay under 50 bytes.

Best regards,

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Hi Jan,

I got it now. Thank you very much for your answer.