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  • Case ID: 286479
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NRF52840-DK

jeepermf1949

I received my NRF52840-DK board, today, from Digi-key.  I followed directions in starting it up - power set to USB, switch to on.  When I turn it on, all LEDs flash and pressing buttons does not affect this.  Also, the BLE does not advertised itself.

Have I received a damaged board, or is there something I can do to "wake it up"?

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    jeepermf1949 said:
    Your startup procedures say to load the App to the phone which contains the heartbeat function.  The function requires pairing Bluetooth, which obviously requires the board to be enabling and advertising Bluetooth.

    Yes, that is correct. But a key part is that is explains that you need to download the Heart rate monitor. That links to the download page where you find the nrf52840-dk-hrm_demo.zip file. (There is no firmware that use bluetooth on the board form the factory so programming relevant firmware is absolutely required.)

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    jeepermf1949 said:
    Your startup procedures say to load the App to the phone which contains the heartbeat function.  The function requires pairing Bluetooth, which obviously requires the board to be enabling and advertising Bluetooth.

    Yes, that is correct. But a key part is that is explains that you need to download the Heart rate monitor. That links to the download page where you find the nrf52840-dk-hrm_demo.zip file. (There is no firmware that use bluetooth on the board form the factory so programming relevant firmware is absolutely required.)

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