https://devzone.nordicsemi.com/f/nordic-q-a/82052/central-peripheral-in-nrf52805-connection-issue-in-ble-uart-exampleDear Nordic Team, Is it possible to have dual role (one at a time) on nrf52805? Is any such stack available? I am very new to BLE and i am facing a problem in BLE Uart example where TCU is not connecting if connection is not made within some perioden-USTelligent Community 13Thu, 25 Nov 2021 09:04:43 GMThttps://devzone.nordicsemi.com/thread/340666?ContentTypeID=1Thu, 25 Nov 2021 09:04:43 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3ee35b48-428f-460d-8c43-3d6acd293290Kenneth<p>The nRF52805 is only qualified with the S112 and S113 softdevice stacks:<br /><a href="https://infocenter.nordicsemi.com/topic/comp_matrix_nrf52805/COMP/nrf52805/nrf52805_ble_qdid.html">https://infocenter.nordicsemi.com/topic/comp_matrix_nrf52805/COMP/nrf52805/nrf52805_ble_qdid.html</a></p> <p>Neither of these softdevice stacks support central mode:<br /><a href="https://infocenter.nordicsemi.com/topic/struct_nrf52/struct/s112.html">https://infocenter.nordicsemi.com/topic/struct_nrf52/struct/s112.html<br /></a><a href="https://infocenter.nordicsemi.com/topic/struct_nrf52/struct/s113.html">https://infocenter.nordicsemi.com/topic/struct_nrf52/struct/s113.html</a>&nbsp;</p> <p>The softdevice will provide events to the application for instance on disconnect event and timeout:<br /><a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.s112.api.v7.3.0/group___b_l_e___g_a_p___a_d_v___m_s_c.html">https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.s112.api.v7.3.0/group___b_l_e___g_a_p___a_d_v___m_s_c.html<br />https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.s112.api.v7.3.0/group___b_l_e___g_a_p___c_o_n_n___m_s_c.html</a>&nbsp;</p> <p>How you handle these events are entirely up to you, but you can for instance use them to start advertisment again. Or start an app_timer that can start advertisment again in future.</p> <p>Best regards,<br />Kenneth</p><div style="clear:both;"></div>