Multiple connect are initiated to a peripheral from different ANdroid phones. Need to connect the peripheral to a phone based on thre rssi value

[GK]

Dear Sir,

I am trying to implement the following scenario. I am working on nrf52832 with SDK15 and soft device 6.0.0.

I have a peipheral device which is advertising for 2 minutes. Then go to sleep and wake up after 5 mins.

There will be multiple phones trying to connect to this device.

On the peripheral side I should check the rssi from each phone and connect to the phone with highest rssi value. ()

Initially I could do with scan report request report.

Since there will be too many devices scanning , I need to face a large number of phones and need to select one from them. So I thought to limit the case to only those phones trying to connect to the peripheral. How to select the phone with highest rssi from all those phones trying to connect to the peripheral

Please give me some guidance on how to proceed ?

Thanking you in advance.

with regards,

Geetha

[Hakon]

It looks like someone answered your question in the past.

devzone.nordicsemi.com/.../213321

[GK]

HI Hakon,

There(devzone.nordicsemi.com/.../213321) the decsiosn is based on the scan report which will be send from the phones while scanning. right?

If I consider in a mall/crowd it will be a large number to handle. So there is chance that we will be selecting a phone who dont wish to connect to us.

Hence I am limiting to only those phones who are trying to connect(all those phones who have  initiated a 'connect')..

So I just want to search in group of phones who wished/tried for a connection to the peripheral?

Please correct me if I my understanding is not correct.

with regards

[GK]

Hello Hakon,

Thank you for the reply.

So that means we should know  the address or irk (if address in not random static) of the phones in advance and hard code the values in whitelist.

Is that what you wished to communicate?

with regards,

Geetha

[Hakon]

You could hard code the addresses, but I don't know why you would do that. It doesn't sound very useful. You can obtain the addresses from the scan response, and make the whitelist dynamically. That way you don't need to know the addresses in advance.

[GK]

OK.Thank you.

Is there a way to get the addresses and rssi values of only those phones who initiated a 'connect' rather than considering all the phones who does scanning( which I think will be large number  compared to those trying to connect)?

Thank you once again for your support and time.

with regards,

Geetha

[Hakon]

I don't think it is possible. You can get the rssi from scan response, but I don't think you can get it from connect request.

[GK]

Hello,

Thank you.

So either we can get rssi from scan response( but there is no surety that the device  whose rssi we received will try for a connection , right?).

Or we can get rssi value after establishing the connection ( using sd_ble_gap_rssi_start(),sd_ble_gap_rssi_get and sd_ble_gap_rssi_stop()), Am I correct?

Will you please shed some light on the above queries?

with regards,

Geetha

[Hakon]

Yes, you are indeed correct.

[GK]

Hi Hakon,

Thank you very much.