Recently I have noticed that there are some changes on the WiFi LoRa V2 module.
I have some issues with the new one (CE version). I use the WiFi LoRa V2 within a gateway which works in RX only. The LoRa devices which send the data use a SX1272 chip (TX only).
If I download the same software, I can see that the new WiFi LoRa V2 (CE version) doesn’t received the frames. I have checked to change the spreading factor on both side but it doesn’t work. I have updated the software and board libraries but there was the same issue.
I have the same issue on the 5 samples ordered in November but no problem on the samples ordered in May.
As you can see, there are some hardware changes and the RF filters are impacted.
After I have tried the example OLED_LoRa_Receiver and OLED_LoRa_Sender at 868MHz and the results were strange.
Sender = November version / Receiver = November version
-112dBm (RF_PACONFIG_PASELECT_RFO at 14dBm)
-27dBm(RF_PACONFIG_PASELECT_PABOOST at 14dBm)
Sender = May 2020 version / Receiver = November 2020 version
-66dBm (RF_PACONFIG_PASELECT_RFO at 14dBm)
-32dBm (RF_PACONFIG_PASELECT_PABOOST at 14dBm)
Sender = November 2020 version / Receiver = May 2020 version
-120dBm (RF_PACONFIG_PASELECT_RFO at 14dBm)
-30dBm(RF_PACONFIG_PASELECT_PABOOST at 14dBm)
The RFO mode doesn’t work correctly on the new version but I don’t understand why.
Have you some ideas to solve my issue ?
My main problem is that my gateway doesn’t work with the new version of WiFi LoRa V2 (CE version), the module doesn’t see the frames from my LoRa devices.