LoRa --- stm32wle5

[SWenn.1]

I would like to do peer - peer stuff and experiment with LoRa.....

Question: Do I use the LoRaWan stack when I am doing peer - peer, or is that strictly used when I want to communicate to a gateway?

Is there literature that explains all the settings in CubeMX when I turn on the Lora module?

Thank you

[Danish1]

“Ping-pong�? examples are a better start for peer-to-peer code.

Lorawan needs a much more powerful radio as the other end. (My understanding is that a Lorawan gateway needs to be listening on all channels all the time).

As to documentation, I haven’t found anything of value beyond the source-code itself. I’d love to learn otherwise.

Hope this helps,

Danish

[Andrew Neil]

Yes, LoRaWAN® is strictly the "star of stars" structure with Nodes, Gateways, Servers, etc - defined by the LoRa Alliance:

 

https://lora-alliance.org/about-lorawan/

As @Danish​ said, look at the "Ping-Pong" example for simple peer-to-peer LoRa comms.

[SWenn.1]

@Andrew Neil​ Thank you I am looking at the peer - peer stuff now. More detailed questions:

1. In peer to peer can you use LoRa modulation or do you end up just using the SubGHz (FSK)?
2. can I do a peer - multipeer communciation (like a remote control and a bunch of sensors) using the LoRa modulation? If so where would I start (with the ping - pong and add LoRa somehow OR with LoRa End Node Application and removing certain features that use the stack)?

Thanks

[Tesla DeLorean · Accepted solution]

The Ping-Pong P2P examples use LoRa, directly, you can change them to FSK, GFSK, MSK, GMSK if you want.

Yes, you can use LoRa (radio/modulation) from the outset, in all those modes of operation, you're just pushing bytes into the Radio chip, they get sent with whatever modulation options have been selected. All nodes will see the data you throw into the air.

Beyond the modulation you'd have to get involved in the byte level content, Station ID, integrity, time, etc, and the filtering and selection of that a the receiving end.

The Ping-Pong is a good starting point for RC or telemetry radios, though I might suggest a better decomposition of the code into a Sender and Listener type operational modes too.

LoRaWAN is a whole other load of clag layered on top of the radio, and gets to be a "protocol" in the end-to-end sense.

[SWenn.1]

Perfect thank you!!....What is the best approach to taking the ping pong example(Nucleo WL55) and using an STM32WLE5 part (single core)? I created a project using STM32WLE5 (I am using a Seeed FCC module) and would like to somehow import the file structure ping pong but this uses the Nucleo WL55.....

[Kubaa123]

Hey! I am struggling with the same problem.. 

i have 2 STM32WLE single core and want to achieve LoRa Ping pong between them 868MHz. Did you achieve this? I have my .ioc file configured correctly, main problem is with code.

[STTwo-32]

Hello @Kubaa123 and welcome to the ST Community 😊.

This post is not active for about 18 months. To give your request more visibility, i suggest you to create a new post to to give more visibility to your request.

Best Regards.

STTwo-32