stm32f446ret6 WITH RFM95W Lorawan module interface library

[Mintu92]

Hello Engineers,

I have recently started developing a product based on the STM32F446RET6 MCU integrated with the RFM95W (SX1276) LoRa module. My goal is to transmit sensor data to a LoRaWAN network server such as TTN or ChirpStack.

I am using STM32CubeIDE for firmware development. However, I have not been able to find clear documentation or structured examples explaining how to implement LoRaWAN (end-device) communication using this MCU and radio combination.

What I am Looking For:

• A stable and recommended LoRaWAN library compatible with STM32CubeIDE

• Guidance on integrating the SX1276 (RFM95W) with STM32 HAL drivers

• A basic bare-minimum example that sends dummy payload data to a LoRaWAN server (preferably OTAA)

• Any reference projects, repositories, or step-by-step guidance

Target Setup:

• MCU: STM32F446RET6

• Radio: RFM95W (SX1276)

• IDE: STM32CubeIDE

• LoRaWAN Server: TTN / ChirpStack

• Region: (EU868 / IN865 — depending on deployment)

Even a minimal working example that performs:

1. Radio initialization

2. LoRaWAN join (OTAA)

3. Periodic uplink of dummy data

would be extremely helpful.

If anyone has experience porting LoRaMac-node or any other LoRaWAN stack to STM32CubeIDE with SX1276, your guidance would be greatly appreciated.

Thank you in advance.

[Andrew Neil]

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@Mintu92 wrote:

RFM95W (SX1276) LoRa module. 

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You mean this: https://www.hoperf.com/modules/lora/RFM95W.html ?

That's a 3rd-party product - not ST - so your first point of contact for support should be the manufacturer, Hope RF:

https://www.hoperf.com/contact/

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@Mintu92 wrote:

• A stable and recommended LoRaWAN library .

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The SX1276 is a Semtech product; they have supporting libraries - see the 'Software' tab on their Product Page:

https://www.semtech.com/products/wireless-rf/lora-connect/sx1276

Note also the 'Resources' at the bottom of that page there's a 2-part video series on their LoRa Basics Modem:

https://www.semtech.com/resources/videos/copy_low-power-1.6t-datacom-transceivers-and-the-path-to-3.2t

https://www.semtech.com/products/wireless-rf/software-library-protocol-solution/lora-basics-modem