PWR_JACK
The board has a standard Olimex DC barrel jack with 2.0mm inner pin and 6.3mm hole. More
information about the exact component might be found here:
https://www.olimex.com/wiki/PWRJACK
You can supply either DC or AC voltage to power the board however be careful – if you provide more
than the maximum voltage suggested, you would permanently damage the board.
The suggested voltage ranges for powering the board from the PWR_JACK are:
If you are powering the board from a DC power source – you need to provide between 6.5V and
9.0V of voltage.
If you are powering the board from an AC power source – you need to provide 6.0V of voltage.
Pin #
Signal name
1
Power input
2
GND
USB_HOST
If you intend to use the USB_HOST connector pay attention to the position of VBUS, USB_D+, and
USB_D- jumpers. There is multiplexing between the USB_HOST connector and USB_OTG connector.
Pin #
Signal name
1
+5V_HOST_PWR
2
USB_HOST_D-
3
USB
4
GND
USB_OTG
If you intend to use the USB_OTG connector in host mode pay attention to the position of VBUS,
USB_D+, and USB_D- jumpers. There is multiplexing between the USB_OTG connector and
USB_HOST connector.
Pin #
Signal name
1
+5V_OTG_PWR
2
USB_OTG_D-
3
US
4
OTG_ID
5
GND
The port can be used for DFU USB mode of the STM32F107 processor. To be able to upload data you
would need a mini USB cable connected to a personal computer that runs the proper software supplied by
ST.
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