LoRaWAN integration in STM32WB55

[OGarc.1]

I am using the STM32WB55 microcontroller where I use BLE and integrate my main program with code that I am implementing.

On the other hand, I need to use LoRaWAN and for this I use the HOPERF RFM95 module in which only the radio part is integrated but in which I could integrate the MAC layer in the STM32WB55 to be able to use LoRaWAN. 

Is it possible to integrate the MAC layer code inside my STM32WB55 or is it better to use a LoRaWAN module like the CMWX1ZZABZ and control it by AT commands?

Regards,

[Remy ISSALYS]

Hello,

I think is better to use a LoraWAN module and control it by AT commands. You can look STEVAL-ASTRA1B board which embed the STM32WB5MMG module and the STM32WL55JC SoC:

https://www.stmicroelectronics.com.cn/en/evaluation-tools/steval-astra1b.html#overview

Best Regards

[Julien NGUYEN]

Hi Remy,

Reading the data brief of the product I found some sensors are already built-in

But I need to add a Time of Flight distance sensor to make a POC. It is I2C communication sensor. Do you know if it is possible to add an external I2C sensor? Or do you have other similar solution ?

Thanks,

Julien

[Remy ISSALYS]

Hi,

Yes, you can add an external I2C sensor through expansion connector, see part 1.4.2.9 of UM2966.

Best Regards