RSSI measurement for each peripheral s130 or 132

RE: RSSI measurement for each peripheral s130 or 132

Sigurd — Wed, 08 Feb 2017 10:46:16 GMT

Example: When a peripheral connects, let’s start the RSSI sampling. In the function on_ble_evt(),when we get the event BLE_GAP_EVT_CONNECTED, let’s call the start function:

case BLE_GAP_EVT_CONNECTED:
        {
            NRF_LOG_INFO("Connection 0x%x established, starting DB discovery.\r\n",
                         p_gap_evt->conn_handle);
            APP_ERROR_CHECK_BOOL(p_gap_evt->conn_handle < TOTAL_LINK_COUNT);

            err_code = ble_lbs_c_handles_assign(&m_ble_lbs_c[p_gap_evt->conn_handle],
                                                p_gap_evt->conn_handle,
                                                NULL);
            APP_ERROR_CHECK(err_code);
            sd_ble_gap_rssi_start(p_gap_evt->conn_handle,3,0); // ADD THIS

then add a new case in the function on_ble_evt() for the rssi event:

case BLE_GAP_EVT_RSSI_CHANGED:
            NRF_LOG_INFO("Rssi is %d with conn_handle: %d\n",p_gap_evt->params.rssi_changed.rssi,p_gap_evt->conn_handle); 
            break;

RE: RSSI measurement for each peripheral s130 or 132

Bill Saltzstein — Wed, 08 Feb 2017 02:19:26 GMT

Thanks -- Got it all working the way I want!

Thank you!!

RE: RSSI measurement for each peripheral s130 or 132

Sigurd — Fri, 03 Feb 2017 11:50:18 GMT

Hi,

In order to measure the RSSI on a connected peripheral, you can use the SoftDevice functions sd_ble_gap_rssi_get(), sd_ble_gap_rssi_start() and sd_ble_gap_rssi_stop(). Provide the conn_handle for the peripheral you want to get the RSSI from. You can read more about these functions here.