Zigbee send character string with 250 symbols

RE: Zigbee send character string with 250 symbols

Amanda Hsieh — Fri, 10 Mar 2023 14:02:40 GMT

Hello,

Would it be an option to use a custom cluster that uses an attribute of type long octet string? Such an attribute should allow to send/receive long data (>256 Bytes) by reading/writing to an attribute. A small change in ZCL will be required, and it is not tested yet, but we just want to check if that could be an option first.

-Amanda H.

RE: Zigbee send character string with 250 symbols

Amanda Hsieh — Thu, 02 Feb 2023 14:03:57 GMT

I have not gotten a reply from the team yet.

-Amanda H.

RE: Zigbee send character string with 250 symbols

Bwko — Wed, 01 Feb 2023 17:54:41 GMT

Hi Amanda,

Thank you for looking into this issue. Do you have an update about this case?

RE: Zigbee send character string with 250 symbols

ArthurChen — Wed, 25 Jan 2023 08:30:29 GMT

Hi,

This is also an important requirement for us. We need to send an encrypted message from the cloud to our ZED, which is 128 bytes, but if we cannot send it as a whole, we need to cut it to many pieces and make the application layer more complicated. We want to define zigbee cluster on ZC and ZED with octave string of length that can hold more than 128 bytes, and then use write attribute command to do the communication between the ZED and ZC. Thus we really would like to be able to send/receive 128 bytes at once, or let the zboss stack to handle the fragmentation for us, instead of doing fragmentation at application layer program by ourselves.

RE: Zigbee send character string with 250 symbols

Amanda Hsieh — Tue, 24 Jan 2023 17:26:33 GMT

Hi,

I am looking into this case and will reply later.

Regards,
Amanda H.