Waveshare Open407V-C Testing Manual page 31

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When connecting a mouse, the LCD will display the mouse's current status.
(6) USB_Host_Examples_Examples--DRD
Hardware Connection
Device mode: Connect the Micro SD Storage Board (with SD card) to the board SDIO via interface; then connect the board
and PC via USB cable. As shown in the figure below:
Host mode: Connect the Core board and the USB Flash Drive by the USB OTG cable. As shown in the figure
below:
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