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note the buad rate used for transmit between device is 46000kbits/s. Inside the rfd config tool it is called the air rate.
the first buad rate is the communication between the computer and the rfd900 note 115200 is beyond most of the computer specification.
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Step 2: connect the Rx pin on RFD 900 to the TX pin configured for the UART communication, and the Tx pin on RFD 900 to the Rx pin configured for the UART communication on STM32.
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