nRF Connect for Android: macro to export data

[rdim]

Dear Colleagus,

Recently we came across nRF connect mobile application for Android that allows, besides other things, monitoring of the signal strength from a particular BLE device. Also that App allows recording/developing an XML-formed macros to perform various actions (above GATT?) on the device.

Question: is there any possibility to export a signal strength graph data from this app, maybe using macro language or any other means?

We actually need to monitor the quality of the device connection for a relatively long time like up to one hour and this App looks like an almost ready solution... An alternative would be to try to measure and export PER over the time but that would require potentially more time/efforts.

Thanks for your help in advance!

[Einar Thorsrud]

Hi,

It is possible to export the data. To do so you can long tap a device or more to get options in the top app bar. You can also export detailed data with time stamps by going to More under a device scanned.

I would say that PER is a much better indication of the link quality though, but you will not get PER data from the stacks on mobile phones (and not on many other stacks either). An option could be to use a sniffer to look at retransmissions, use a short supervision timeout and count disconnects.

[rdim]

Ah cool! Thank you! I didn't know about long tap option. Let me try if this allows exporting data for, say, 1 hour.

Sure, for PER variant I would probably need a DTM flashed to the device and python script on PC to do these measurements. This means mobile app is out of scope in that case.

Thanks again!