- queue_item_id:“fc8cf719-d597-45ce-8a6d-5a949cf08b1d”
- max_payload_size:“51”
- item_size:“252”
I tried to use ENqueue to send downlink data, but an error was reported when my data size was larger than 50bytes. How can I change max_payload_size
I tried to use ENqueue to send downlink data, but an error was reported when my data size was larger than 50bytes. How can I change max_payload_size
I have solved this problem, max_payload_size is related to MAC version in device profile, before I used LoRaWAN1.0.2, now I use LoRaWAN1.0.0
Hi there ,
The max payload size for downlinks is fixed by the spec.
So changing your DR seems to be a good start, but even with DR5, max is 222.
See: LoRa best practices Packet Optimisation Packet Size Considerations | DEVELOPER PORTAL
Thank you very much for your answer
HI
I tried to configure CN470, and I got MAC version LoRaWAN= 1.0.2A. I sent the downlink data through enqueue, but when DR=5, I was still prompted that the maximum load was 51. Why?
It depends on the region, so you have to dive into the spec for CN470.
NO NO NO
I actually sent 100 bytes, he didn’t report an error, and when I sent 101bytes, he told me:
context:{} 3 keys