Bluetooth Connection Issue

[tsakmalis]

I am trying to get connected with my Android App and I have noticed that sometimes when the user turns off Bluetooth and tries to enable it again after 20 minutes my Android App cannot get connected. The problem is solved if I put the phone in Airplane Mode and try to get connected again. Can you suggest me any solution?

[thoric_fish]

Are you using any encryption or MITM protection from your BLE server? Or are you just using an open connection? You might also want to check if the devices are bonding or not, if you are using a peer manager and using encryption, LESC, etc the peer manager might block re-pairing from previously paired devices.

[tsakmalis]

I am just using an open connection without any encryption.

Is there any example in order to establish the connection between the App and the Nordic device?

[Sigurd]

For example code, please take a look at our Android-BLE-Library , Android-Scanner-Compat-Library and Android-nRF-Toolbox repos.

[tsakmalis]

"nRF Connect" is available? I am asking you because I couldn't find anything in Github

[Sigurd]

tsakmalis said:

"nRF Connect" is available? I am asking you because I couldn't find anything in Github

No. The nRF Connect for Android source code is not available, unfortunately.