NRF52840 ble-app-uart example does not send serial when flashed into a SparkFun Pro nRF52840

[Leong Hei Kern]

Hi,

I am currently trying to test the capability of bluetooth 5 long range mode using a pair of SparkFun Pro nRF52840. I have used the blue-app-uart example and:

1) Added sparkfun board definition

2) Modified the makefile.

I am currently able to compile and flash the programme into the SparkFun Pro nRF52840 but the uart does not work. The computer does not even detect it as a serial device.

I am very new to the embedded scene so I might have missed something in the makefile or something along that line. I would be very grateful if you could point me in the correct

direction towards getting uart from NRF52840 to work with SparkFun Pro nRF52840. Thank you very much!

[AndreasF]

Hi.

Have you looked at SparkFun's nRF52840 Advanced Development With the nRF5 SDK Tutorial? 

Best regards,

Andreas

[Leong Hei Kern]

Dear AndresF,

Thank you for replying! Yes I have followed the mentioned tutorial and have been successful in replicating the Blinky example. I am interested to enable the bluetooth 5 long range mode specifically using the ble-app-uart example. I have tried to adapt the makefile from the mentioned tutorial to work with the ble-app-uart example but to no avail. I am able to compile and flash into the SparkFun Pro nRF52840 board but I am not getting any uart response from the board.

Thank you once again!

[AndreasF]

Hi.

The example found in the folder \examples\ble_peripheral\ble_app_uart does not use the long range feature. So regardless of how you adapt the Makefile, you will not have any long range unless you implement this into the example.

If you are able to compile and flash the example onto the board, you also need to flash the SoftDevice, otherwise the Application won't start, you must also configure the correct UART pins.

Best regards,

Andreas