NUCLEO-L073RZ LoRaWAN end-node set up for TTN

Kaaviya · ‎2025-05-29

I recently got the P-NUCLEO-LRWAN2 board. I'm trying to set up the end node NUCLEO L073RZ using STM32IDE. I want to flash the firmware to the end node, get response from it for AT commands in Tera Term and connect it to TTN.
Please provide the step by step procedure to set up the end node.

Andrew Neil · ‎2025-05-30

Are you working on the same project as @Kavin1 ?

https://community.st.com/t5/stm32-mcus-wireless/l073rz-lorawan-end-node-not-responding/m-p/807635

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.

Kaaviya · ‎2025-05-30

yes I'm working on the same project as @Kavin1 . Can you please help us with the detailed configuration steps required to setup the endnode NUCLEO-L073RZ from the P-NUCLEO-LRWAN2 kit. We are not getting any response in the tera term from the end node. We tried flashing the binary file using STM32CubeProgrammer. But still we are not getting any response from tera term.

Andrew Neil · ‎2025-05-30

@Kaaviya wrote:
yes I'm working on the same project as @Kavin1

and @AkihiroN ?

Please coordinate your efforts - don't all start separate threads on the same topic.

The P-NUCLEO-LRWAN2 pack documentation should have all the steps.

As already noted, this pack has been obsolete for some time - so you'd probably be better off finding current, supported parts ...

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.

Kaaviya · ‎2025-05-30

No I'm not working with @AkihiroN.

I have navigated to the Projects->NUCLEO-L073RZ->APPLICATIONS->LoRaWAN->LoRaWAN_End_Node.->sx1272 in the i-cube-lrwan package for the end node. Can you please let me know the next steps I should take to get response from the end node for AT commands since I'm not getting any response now even after trying what is done in the P-NUCLEO-LRWAN2 pack documentation.

Andrew Neil · ‎2025-05-30

@Kaaviya wrote:
I have navigated to the Projects->NUCLEO-L073RZ->APPLICATIONS->LoRaWAN->LoRaWAN_End_Node.->sx1272 in the i-cube-lrwan package for the end node

Are you sure that's the correct project?

The end-node in the P-NUCLEO-LRWAN2 has the USI module - it's not a bare SX1272.

I-NUCLEO-LRWAN1 (with the USI module) is also obsolete:

https://www.st.com/en/evaluation-tools/i-nucleo-lrwan1.html

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.