Mobil application connects to a device I don't want.

[cemalb]

Hi,

We use an application developed by us while establishing the nRF52 connection with the mobile device. When I chose an nRF52 device to establish a connection, I realized that there was a process of connecting with both the nRF52 I chose and another nRF52 in the environment. Then I also tested with the nRF connect application. I observed the same situation with the nrf connect application.

As follows;

I'm choosing a device to connect. but sometimes it connects to both. what is the reason of this ? how can this situation be prevented?

but it connects to both:

  

[Amanda Hsieh]

Hi, 

I cannot reproduce the issue with ble_app_template on nRF52832 DK.

What is your application? What SDK are you useing? Do you also see the issue with the SDK examples?

-Amanda H. 

[cemalb]

actually the problem is independent of nRF52. I did not experiment with sdk samples. However, when I connect to one of 2 different nRF52s with the same software, sometimes it connects to the other at the same time. this has nothing to do with the nRF connect application. The same problem occurs when I pairing via the bluetooth menu of my mobile device. When I pair with one of 2 separate nRF52 devices, it can connect to the other. Although not always, it happens once in an average of 5 attempts.

[Amanda Hsieh]

I still cannot reproduce the issue with my phone and the Heart Rate Application which has LESC pair.

What os is the phone, Android or iOS? Did you try other phones? Could you test with the Heart Rate Application?

-Amanda H.

[cemalb]

The uuid values of the two nRF52s I used are the same. Could it be related to this? I am not very familiar with the ble protocol.

Amanda Hsieh said:

What os is the phone, Android or iOS?

Android.

Amanda Hsieh said:

Could you test with the Heart Rate Application?

I haven't tested it yet. I will try.