RSSI value reading from peer without making connection

RE: RSSI value reading from peer without making connection

GK — Fri, 07 Sep 2018 09:42:58 GMT

please check here..if it helps... devzone.nordicsemi.com/.../connecting-the-ble-device-to-a-phone-app-with-highest-signal-strength

RE: RSSI value reading from peer without making connection

Hung Bui — Thu, 10 Nov 2016 09:04:56 GMT

@ponlakshmi: Please be specific on which side you want to get the RSSI, on the phone or on the nRF51 ? The phone won't send any advertising packet.

If you want to get the RSSI of the phone when the nRF51 advertise, you need to catch the scan request packet from the phone. If the phone does active scanning, you can catch that scan request, if the phone does passive scanning, you won't have any packet from the phone and then it's impossible to get RSSI from the phone.

If you want to get RSSI of the scan request, you need to enable the BLE_GAP_EVT_SCAN_REQ_REPORT event by enabling it using sd_ble_opt_set(). Then in the event you can find the RSSI.

RE: RSSI value reading from peer without making connection

ponlakshmi — Thu, 10 Nov 2016 07:52:39 GMT

I need RSSI at the nrf51822(peripheral) without making connection to the Central(mobile).What is the function used for that.

RE: RSSI value reading from peer without making connection

awneil — Thu, 10 Nov 2016 07:46:35 GMT

You missed the point: do you want the RSSI at the host (mobile), or the RSSI at the Nrf51822 (peripheral) ?

RE: RSSI value reading from peer without making connection

ponlakshmi — Thu, 10 Nov 2016 06:29:18 GMT

what is function used to get rssi from advertising packets.

RE: RSSI value reading from peer without making connection

ponlakshmi — Thu, 10 Nov 2016 05:44:18 GMT

I want RSSI(Received signal strength indicator)

RE: RSSI value reading from peer without making connection

awneil — Wed, 09 Nov 2016 14:46:05 GMT

What do you mean by, "RSSI value from beacon" ?

RSSI = Received Signal Strength Indication - so are you talking about the strength of the received signal at the mobile, or do you somehow want to know what signal level the Beacon is receiving?

RE: RSSI value reading from peer without making connection

Hung Bui — Wed, 09 Nov 2016 11:47:26 GMT

Hi,

The RSSI, received signal strength indicator, can be collected from any radio packet received. It's applied also for advertising packets. So connection is not needed to get the RSSI.