USB Device: In this mode, usually, a USB A to Micro B
cable is used to connect to a PC. The board can be powered through
the USB interface.
USB Host or USB OTG: In these modes, usually, a
Micro A USB cable is used to connect to a USB device or a USB OTG
device. A USB host or USB OTG interface must be able to supply the
connected USB device. Consequently, the board must be powered
through the VIN connector, which must be strong enough to supply
the board and the connected USB device. The USB power supply is
switched with the IC14 (STMPS2141), which also guards the maximum
current consumption.
Note
The USB interface of the board can be connected through a USB
Micro AB connector.
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