Vs1003B Mp3 Board - Waveshare Open407V-C Testing Manual

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Connect the serial port converter to the board via UART3 Interface.
As shown in the figure below:
Operation and Result
Launch the serial debugging assistant, and configure it as described in chapter "Preparation".
Info/message will be displayed on the Serial debugging assistant.
Overview
VS1003B MP3 Board demo
Hardware Connection
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Connect VS1003B MP3 Board to the board via SPI.
As shown in the figure below:

VS1003B MP3 Board

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Open407V-C\Open207V-C Testing Guide