Integrating AT Slave example of LoRaWAN and Sigfox on STM32WL

[Nikhil D&K]

Hello developers,

I am currently developing all in one AT Slave firmware for STM32WL, which can handle both lorawan and sigfox AT commands. I have tested both AT Slave example of Sigfox and LoRaWAN one by one and  it's working as expected.

 When i open the .ioc file of this examples (AT Slave LoRaWAN and Sigfox) in CubeMX,  i can see it doesn't allow to enable the Sigfox/LoRaWAN middleware in LoRaWAN/Sigfox example. 

So i would like to know how i can enable both the middleware in same firmware, so that my master device can leverage the use of both technologies (LoRaWAN & Sigfox ) in the same chipset. 

[Andrew Neil]

You're just going to have to study the code, and work out how to merge the two.

Are you looking to do both LoRaWAN and Sigfox "simultaneously", or just have a single image that can be switched to either LoRa or Sigfox mode ?

[Andrew Neil]

Take a look at this - from the 'Related Content' sidebar:

https://community.st.com/t5/stm32-mcus-wireless/stm32wl-software-support-for-wmbus-sigfox-lorawan/m-p/648308/highlight/true#M18238

Perhaps also try a forum search ...

[Nikhil D&K]

Hello @Andrew Neil ,

In my application i would be publishing hourly data on LoRaWAN server and Sigfox  backend one at a time. So looking to genrate a image of AT Slave in which i can switch between this modes.

Yes while studying its .ioc configurations, i bumped into the issue that cube mx is not allowing me to enable the Sigfox midleware in LoRawan application.

I also have refered this video https://www.youtube.com/watch?v=HsrL-7WmhUE of end device co-existence of both technologies but the resource downloaded doesnt have .ioc file nor it shows how to enable both midllewares in same project..

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[Andrew Neil]

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@Nikhil D&K wrote:

I also have refered this video https://www.youtube.com/watch?v=HsrL-7WmhUE of end device co-existence of both technologies but the resource downloaded doesnt have .ioc file nor it shows how to enable both midllewares in same project..

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It's a complete project - so, presumably, doesn't need an .ioc file. You just build it as-is.

And the demonstration shows that it does have both Sigfox and LoRaWAN in the same project - it only takes a button switch to go between them.

Perhaps @STTwo-32 can comment further?

Alternatively, there's the 3rd-party stack mentioned in that post.

[Nikhil D&K]

Hello @Andrew Neil Third party stack is for MBus. 

I have currently started to merge both examples taking LoRaWAN example as base and copying  the Sigfox Middleware and application level files in the project. , hoping for successfull implementation. 

@STTwo-32 can you please provide some inputs in this issue.

[Andrew Neil · Accepted solution]

I would strongly suggest that you first have a look at the project from that video - that should give you a working project as reference ...

[Nikhil D&K]

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@Andrew Neil wrote:

I would strongly suggest that you first have a look at the project from that video - that should give you a working project as reference ...

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Hello @Andrew Neil thanks for your suggestion. 

I was able to download and successfully builld and run end device application as given in video.

Now i  will firstly update sigfox at slave application file in this example and hopefully get it going.