1 year, 10 months ago.

LORWAN mbed-os-example-lorawan example project PHYheader size?

Hi all

I have been trying to figure out what the total bytes is when im transmitting a payload from my end-node to the Gateway. My payload is 25 bytes and as I understood the minimum PHYheader is 13 bytes. But how can I see how many bytes my end-device is sending?

Im using the following example code on my End-node to connect to the Gateway: Code: https://github.com/ARMmbed/mbed-os-example-lorawan End-node: Development board B-L072Z-LRWAN1 Gateway: Connected to OTA/ABP Kerlink LoRa IoT Station

I found this link but I get really confused when im reading this. https://lora-alliance.org/resource-hub/lorawantm-specification-v11

Can anyone help me on how I find out the number of total bytes im transmitting when sending a payload of 25 bytes?

1 Answer

1 year, 10 months ago.

All depends of the settings. Try the SX126x Calculator tool to get the answer.