https://devzone.nordicsemi.com/f/nordic-q-a/67348/how-to-check-connection-is-being-establishedHi, We want to have same key for handling accept for LESC pairing and sleep mode if BLE is in advertising. The implementation is based on ble_app_hrs_pca10040_s132. SDK: nRF5_SDK_16.0.0 How do I check the connection is being established? =&gt;Toen-USTelligent Community 13Tue, 20 Oct 2020 03:42:45 GMThttps://devzone.nordicsemi.com/thread/275744?ContentTypeID=1Tue, 20 Oct 2020 03:42:45 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d1d3d5d9-669c-4a85-8bc1-6d46a02ef126Vick_Chang<p>Hi Jared,</p> <p>I have a quick trial. This is&nbsp;what I want, thank you!!</p> <p>Vick</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/275628?ContentTypeID=1Mon, 19 Oct 2020 12:43:36 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6f4f276d-71ef-4408-b215-a751ca8a580fJared<p>Hi,</p> <p>Two events will be generated during a pairing procedure. The first is the&nbsp;<span>BLE_GAP_EVT_SEC_REQUEST which is generated at a start of the pairing procedure. A&nbsp;<em>BLE_GAP_EVT_AUTH_STATUS</em>&nbsp; event will be generated at the end of the paring sequence. You can use these two events to set flags which would indicate what state the pairing procedure is at.</span></p> <p><span><a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.s132.api.v7.2.0/group___b_l_e___g_a_p___p_e_r_i_p_h___s_e_c___m_s_c.html?cp=4_7_3_1_2_1_5_10">See the message sequence diagrams for the pairing procedures</a>.</span></p> <p><span>hope that helps</span></p> <p><span>regards</span></p> <p><span>Jared&nbsp;</span></p> <p>​</p><div style="clear:both;"></div>