I am facing issue getting data from Lora sensors. I configured my gateway and devices and i can see the uplink and join messages on device data tab. But once i click an uplink message i see data object as null. I checked logs of gateway-bridge,lora server and lora app server but could not find anything. I am attaching the screen sheet.
The device has sent an uplink on fPort: 0 which is being used for mac-commands in the frmPayload field. This means no application payload was sent by the device, but you can still use the rxInfo / txInfo meta-data for other purposes. So it is correct that the data: null.
Dear thanks a lot for your response. I am new to Lora technology. So you mean to say:
“Above issue is a normal behaviour or i need to make some changes?”
For now i can only see join and uplink request every one minute from device on lora app server device data console. But i am unable to figure out why no data is coming.
But when i try to decode it…it cannot be converted to ascii or readable format. I even tried online decoders but no success… Need your insight. I have attached the payload screen shot.