I nucleo lrwan1 not responding to AT command

[Arifibrahimiitb]

I have I-nucleo-lrwan1 right from the box and one NUCLEO L152RE. I have been trying to test the LoRaWAN by sending AT commands on Arduino IDE, however, I am not getting any feedback. I have stacked the Loramodule onto the nucleo board without any jumper wires. I am new to the STM boards so need help

[fpistm]

Hi @Arifibrahimiitb
I think you met this known limitation about the Nucleo 64:
https://github.com/stm32duino/I-NUCLEO-LRWAN1?tab=readme-ov-file#known-limitations

Which explain why you get nothing as the Serial link between tht Nucleo and the shiel are not wired by default.

[fpistm]

Did you try to connect directly to the shield serial to send AT command ?
It should answer by default, if not then no link with the Nucleo board nor the core and I guess it is the case.
You can find fw here:
https://github.com/USIWPModule/USI_I-NUCLEO-LRWAN1/tree/main/preloaded_firmware

[Arifibrahimiitb]

Thanks, my LoRaWAN is working fine with NUCLEO L152RE now.
However, on the other side, I am using NUCLEO F401RE. I am doing everything the same, but somehow for this board it is not working. I changed the pins from PC_11 and PC_10 To PB_6 and PA_10, since the UART is not on the same pins

[fpistm]

Just test and it works:
HardwareSerial SerialLora(PA10, PB6);
D0 wired to D2 (PA10)
D1 wired to D10 (PB6)

[Arifibrahimiitb]

It is working now, thank you so much for your quick help. means a lot.

[fpistm]

Welcome note that , I've made a small update to the README and that the library I-NUCLEO-LRWAN1 is a public archive as the expansion board is obsolete.