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NRF52840 DK coin cell

Ossi

Hi,

I have a problem with the NRF52840 DK rev. 2.0.1 coin cell. When powered via USB board is working properly but when powered with coin cell nothing happens.  

SW08 is on, SW09 switch in VDD position, SW06 in DEFAULT position.

The new hardware revision has had changes to made to the board, e.g SB35 solder bridge removed. These changes have not been updated to user guide v.1.4.1.

So how to enable coin cell in rev. 2.0.1?

Best Regards,

Ossi

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  • +1

    Hi Ossi,

    Thanks for noticing the faulty documentation.

    The nrf52840DK should work out of the box whit the coin cell battery, the LEDS might not blink but the radio will work, if you load a simple BLE application on the development kit like the preipheral_hid_mouse it should show up.

    So how to enable coin cell in rev. 2.0.1?

    Should work by default.

     Regards,
    Jonathan

Reply
  • +1

    Hi Ossi,

    Thanks for noticing the faulty documentation.

    The nrf52840DK should work out of the box whit the coin cell battery, the LEDS might not blink but the radio will work, if you load a simple BLE application on the development kit like the preipheral_hid_mouse it should show up.

    So how to enable coin cell in rev. 2.0.1?

    Should work by default.

     Regards,
    Jonathan

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