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OpenSK logo

Feitian OpenSK USB Dongle

Flashing using DFU

This board is similar in hardware to the Nordic nRF52840 Dongle. You can use DFU to flash it, instructions to enter DFU mode depend on the version of your hardware. See Feitian's instructions. In short:

  • In V1, use a paperclip to press the Reset button through the tiny hole.
  • In V2, push and hold the user button for more than 10 seconds after connecting your device.

Afterwards, you can flash your Feitian OpenSK using DFU following the instructions for the Nordic nRF52840 Dongle.

Buttons and LEDs

For both hardware versions, the buttons and LEDs are described in detail in the hardware section of Feitian's website.