2.4GHz signal between 2 nRF52840 Dongle

[Auuken]

Hello,

I have 2 nRF52840 Dongles.  I am trying to use one to transmit 2.4GHz wireless signal and the other to recieve wireless signal and read the connection strength (RSSI).  How can this be done?

So far I have installed nRF Connect and was able to use the BLE application to test bluetooth signal between my nRF52840 dongles.  Is there a similar way to test 2.4GHz signal using nRF Connect application?

I am using Ubuntu 18.04, but I can access a Windows laptop if needed.

Thanks!

[Marjeris Romero]

Hi,

I don't know if I understood your question. You can use the nRF Connect app for Desktop with a nRF52840 dongle to read the RSSI value from an application running in another dongle.

Just launch the nRF Connect app and add the "Bluetooth Low Energy" app in the start menu. The user guide for the nRF Connect Bluetooth Low Energy app can be found here.

Best Regards,

Marjeris

[Auuken]

Hi msromero,

Thanks for the reply.  I have launched the nRF Connect app and installed all of the apps.  I have also used, 'Bluetooth Low Energy' to test RSSI signal strength.  However, this is using bluetooth and not (various other) 2.4GHz radios.  I would like to connect the two nRF52840's using various 2.4GHz radio protocols and test the signal strength of that.  Can this be done with nRF Connect or otherwise with these dongles?

Thanks!

[Marjeris Romero]

Hi Auuken,

I see, I now understood your question. Unfortunately you cannot use the nRF Connect app for testing propietary protocols. The easiest way to test the 2.4GHz radio would be with the Radio Test Example, but you will need to use a DK connected to your computer as the example is controlled using UART.

You could also modify the example to use USB-CDC instead of UART in you want to use the dongle, you can see this example here as a guideline.

Best Regards,

Marjeris

[Auuken]

Alright, I'll use BLE. Thank you!

[awneil]

Auuken said:

bluetooth and not 2.4GHz radio

Err ... Bluetooth is a 2.4GHz radio!