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Visitor II
November 5, 2025
Question

Programming STM32WB15CCU6E in Arduino IDE

  • November 5, 2025
  • 1 reply
  • 125 views

I am trying to program my custom board with STM32WB15CCU6E on it in Arduino IDE. I always upload the code to my nucleo-wb15 board to verify if it is working before uploading it to the custom board. The main difference between the chip used on nucleo-wb15 and STM32WB15CCU6E is that my custom board has no external 32.768 kHz crystal installed, so it mainly relies on HSE or LSI.

However, I could not make my BLE module advertise on my custom board while it is working fine on the nucleo-wb15. I am suspecting except the Arduino code, I probably need to change something in the variant file. Anyone knows how to do it? thanks.

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    1 reply

    Graduate II
    November 5, 2025

    Hello @mhcheng

    I think this is not the right place for questions on the STM32duino. I suggest you to report this issue on the STM32duino repo . You can also report it her https://www.stm32duino.com/ but it is not working for me. @Imen.D  Could you please check the issue on the website.

    Best Regards.

    II