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  • @dwallersv

    Serial**1** is the instance of the a Serial that is used... 

    Serial1.setup(115200); // notice: Serial1 (Serial # One)

    A9/A10 - USART1 (USART - Universal Synchronous/Asynchronous Receiver/Transmitter # 1) IS Serial1 - as per HW reference for HYSTM32_32.


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