RE: rssi value of multiple phones trying to connect to a single peripheral

GK — Mon, 17 Sep 2018 06:21:09 GMT

ok.Thank you very much for your time and reply

RE: rssi value of multiple phones trying to connect to a single peripheral

Einar Thorsrud — Fri, 14 Sep 2018 11:54:34 GMT

Hi,

[quote user=""]Is it possible to know the rssi value only after establishing a valid connection?[/quote]

You can start measuring RSSI after a peer has connected. You first have to call sd_ble_gap_rssi_start(), an then you can subsequently either get events for the RSSI or obtain the RSSI by calling sd_ble_gap_rssi_get().

[quote user=""]Is it possible to know the rssi value of the phone who initiated a connect to the peripheral?[/quote]

The peripheral cannot normally get the RSSI from the central/scanner before a valid connection has been established. However, if the peripheral has scan response data and the central does active scanning, you may get a BLE_GAP_EVT_SCAN_REQ_REPORT event. If so, the ble_gap_evt_scan_req_report_t contains the RSSI. Please note that this event has low priority, so the application may not get any event from the SoftDevice even if it has received a scan request (and replied with a scan response).

[quote user=""]Is it possible for a single peeripheral to manage multiple connect request at the same time?[/quote]

No. The SoftDevice can maintain multiple connections simultaneously, but it can only have one advertiser at the same time.

[quote user=""]Or iis it only capable of handling only one connection at a time?[/quote]

The SoftDevice can maintain multiple connections at the same time, even though it can only have a single advertiser instance. If one peripheral connects, then it can re-start advertising so that another peripheral can connect (and so on).