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bozgan
Associate II
January 28, 2025
Solved

LoRa FHSS support for STM32WL55JC (E5) module?

  • January 28, 2025
  • 4 replies
  • 1160 views

We purchased the STM32WL55JC Long Range Module board for a project. This board includes the LoRa E5 HF module. We are considering using LoRa FHSS in our project. Can this motherboard support LoRa FHSS? Does it support? I couldn't find much information about this on the internet. Please let me know if LoRa e5 supports FHSS.

Best answer by STTwo-32

The LoRa-E5 module is based on the MCU STM32WLE5JC and not the other way. For your question, I've answered, I think.

Best Regards.

STTwo-32

4 replies

Andrew Neil
Andrew Neil
Super User
January 28, 2025

Welcome to the forum.

Please see the guidelines, How to write your question to maximize your chances to find a solution

In particular, which board, exactly, do you have?

Note that the E5 module is a 3rd-party product:

https://www.seeedstudio.com/LoRa-E5-Wireless-Module-p-4745.html

have you asked Seeed Studio for support?

A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.
    STTwo-32
    STTwo-32
    ST Technical Moderator
    January 28, 2025

    Hello @bozgan and welcome to the ST Community.

    For the STM32WL, it does support the FHSS. We have even an example (the SubGHz_Phy_LrFhss) that run on the NUCLEO-WL55JC1. For your module, it is a Seeed studio product. So, you may want to contact them using their community as suggested by @Andrew Neil.

    PS:  the LoRa-E5 module is based on the STM32WLE5JC not the STM32WL55JC.

    Best Regards.

    STTwo-32

    To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
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    bozganAuthor
    Associate II
    January 28, 2025

    https://www.st.com/en/microcontrollers-microprocessors/stm32wl55jc.html I own this product. It has the Lora e5hf module on it. I asked for support from Seeed Studio on this issue, but maybe there is someone on the forum who knows the answer to my question.

     

     

    STTwo-32
    STTwo-32Best answer
    ST Technical Moderator
    January 28, 2025

    The LoRa-E5 module is based on the MCU STM32WLE5JC and not the other way. For your question, I've answered, I think.

    Best Regards.

    STTwo-32

    To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
      B
      bozganAuthor
      Associate II
      January 30, 2025

      I looked at the FHSS example you told me about. This example only works in TX mode. It sends data using FHSS. I want to listen to these transmitted data with the same model STM32 Nucleo WLE5JC board. Is there an example for this? How can I configure it to continuously listen for the FHSS configuration?

      Andrew Neil
      Andrew Neil
      Super User
      January 31, 2025
      @bozgan wrote:

       I couldn't find much information about this on the internet. 

      It is a fairly recent addition to the LoRaWAN specifications:

      https://blog.semtech.com/lorawan-protocol-expands-network-capacity-with-new-long-range-frequency-hopping-spread-spectrum-technology

      A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.
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