Can it compare two RSSIs in nRF51822?

[Toru]

Hi,

I use nRF51822.

Can it judge a UID of higher RSSI level by comparing the RSSI of two advertizers with Central mode in nRF51882? I want to know a UID of advertiser that has higher RSSI.

For Example,

C=Central, A1=Advertiser1, A2=Advertiser2,

First, the C is scaning and measure the RSSI of A1. Next, the C is scaning and measure the RSSI of A2. After measure RSSIs, can it compare which RSSI is higher in nRF5188? And can it judge a UID of higher RSSI?

Thanks for any helps.

[Einar Thorsrud]

You will get a BLE_GAP_EVT_ADV_REPORT event whenever an advertisement is received. The advertisement report (ble_gap_evt_adv_report_t) will contain both the peer address and RSSI. Using this information, you can compare the RSSI of various advertisers.

You can see an example of how advertisement data is used this in the on_ble_evt() function in main.c of the Nordic UART Service Client example (though this does not use the RSSI).

[Einar Thorsrud]

I'm happy to help. If you are satisfied with my answer I would appreciate it if you could accept it by clicking the circle checkmark to the left of it.