Enabling UART over USB on the NRF52840 Dongle to transfer BLE data

Hello, 

Being quite new to BLE, I am trying to transfer data over bluetooth following this NUS tutorial. It works for me on the nrf53 DK. Data being sent back and forth pops up on a com port. 


But I would like to run the above exactly to transfer BLE data between two nrf52840 dongles. Upon investigating on devzone, I found that UART is not directly available and USB CDC-ACM sample has been suggested to enable this functionality. I flashed the sample code on the dongle using a Jlink edu mini (and by soldering a SWD port at the back of the dongle). I am on a windows PC and on connect SDK 2.4.2. After successfully flashing the code, I unplugged and plugged back the USB of the dongle, checked the device manager on windows for a com port number. Nothing shows up. I tried the option to manually add legacy hardware support in the device manager but that too did not work.

I am not sure how to solve this from this point onwards. Any help is appreciated.

Best regards, 

Sid 

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