Building LoRa device (not LoRaWAN) : any example code available ?

[NOLFF.1]

Hi,

I want to build a simple point-to-point communication (2 devices for now) system between two NUCLEO-55WLJC1 dev kit.

I would like to use the LoRa modulation for this purpose but do not want to use the complete LoRaWAN protocol (and its stack).

Is this something that is supported by ST's software and example codes ?

Has anyone tried using LoRa on the STM32WL without the LoRaWAN stack ?

It was relatively easy to do that with STM32L0 + SX126x using example codes. I am not sure how complex it can be, especially with the dual core version of the STM32WL.

Regards.

[DedMoroz]

Load the latest CubeMX. On the first screen select 'Access to example selector' and find SubGhz_Phy_PingPong example. You can use LORA or FSK for tests.

[NOLFF.1]

Thanks. I first thought SubGhz would only be FSK or other modulation and was happy to see it includes LoRA.

I have however found this issue : https://community.st.com/s/question/0D53W00000VgqmvSAB/trouble-with-the-stm32cubewl-dual-core-example-projects

Do you know if it is still occurring with the latest CubeWL package ?

[DedMoroz]

I did not have time to load M0+ project, but not all demo projects work as expected.

[JeffSm]

Hi,

Is there any way to convert this from Ping-Pong to fixed Receiver and Transmitter application?

What changes should I make to use one board as receiver and one as transmitter?