Where to see incoming data on NRF Connect app?

[nordev]

SDK 14.2, NRF52840, S140, NRF Connect for iOS iPad (v2.4.8) 

We are sending a value to a characteristic as a request using the NRF Connect app, and then our NRF BT device will send back a bunch of data to the phone/iPad on a different characteristic. 

Is there a place in the NRF Connect app where we can see this data come in? 

Thanks!

[run_ar]

Hi,

nRF connect has a log feature where you can see data arriving from the peer. It's possible to configure the filter to only log data for connected devices. As an alternative you could also use nrf sniffer to monitor the on air traffic.

[nordev]

the sniffer doesn't work so well here, because the data is all encrypted between the two devices. 

The logs seem to only tell me that I sent a value from NRF Connect to the Characteristic, but I don't see any data coming back (it would come back on a different characteristic). It is definitely being sent though. I see [encrypted] data packets being exchanged between master and slave, and I am able to receive the actual data via a custom app. Do I have to turn something special on inside the Nordic app in order to see the data in logs? 

[run_ar]

As far as I can see logging is turned on by default. (I am on an iPhone 11 using nrf connect 2.4.8, with the hrm example from the nrf5 SDK v17.0.2.) but I have to disable scroll lock at the bottom right corner for the view to update, did you try that?

[nordev]

Nope, nothing. I turned on and off scroll lock. I tried with an iphone SE with nrf 2.4.8, and an iPad with the same version.

[run_ar]

What kind of data are you sending from the peripheral? Could you share the log file? I would expect seeing something like this whenever a notification is received from the peripheral:

didUpdateValueForCharacteristic: 2A37, error: nil) Value of Characteristic 2A37 updated to 0x16-A0-51-01-50-01-4F-01-4E-01-4D-01-4C-01-4B-01-4A-01-49-01-48-01-47-01-46-01-45-01-44-01-43-01-42-01-41-01-40-01