Android do not autoconnect when nrf51822 is set to advertise on connect mode

RE: Android do not autoconnect when nrf51822 is set to advertise on connect mode

Hung Bui — Tue, 17 Jan 2017 12:32:54 GMT

@TechGeek: I basically did the same in my test. I'm not sure what in your advertising_start() though.

Do you observe that we advertise as we should when in connection and when disconnected ? If we do, then it's the issue on the phone's side.

RE: Android do not autoconnect when nrf51822 is set to advertise on connect mode

TechGeek — Mon, 16 Jan 2017 16:31:23 GMT

Re: "Suggest you to make sure you advertise in connectable mode after it get disconnected not in non-connectible". This is taken care of by the below code snippet I shared earlier:

case BLE_GAP_EVT_DISCONNECTED: advertising_start(BLE_GAP_ADV_TYPE_ADV_IND); break;

Let me know if this is not the case or you are recommending something different than the above.

Re: Test on other phone. I tested on 2 phones : Samsung Galaxy S7 and OnePlus One. Both same result.

RE: Android do not autoconnect when nrf51822 is set to advertise on connect mode

Hung Bui — Mon, 16 Jan 2017 16:14:42 GMT

Hi TechGeek,

I did a test here with a SamsungS6 Android 6.0.1 but I don't see that problem. I setup a device doing what you described, advertising in non-connectable mode when in connection and switch back to connectable mode when disconnected. When connecting with Autoconnect selected on nRFConnect app, it can connect after I reset the device to go back to connectable mode. The phone simply wait until timeout happens and then connect again.

I would suggest you to make sure you advertise in connectable mode after it get disconnected not in non-connectable. Also try to test on other phone.