Prevent BLE connection

RE: Prevent BLE connection

Frederic — Fri, 06 Dec 2019 13:38:56 GMT

ok I will do this. I though there were a easy was to prevent connection in the Softdevice in such situation but I will follow your advice and disconnect the remote device in the BLE_GAP_EVT_CONNECTED event.

Tahnk a lot!

RE: Prevent BLE connection

Sigurd — Fri, 06 Dec 2019 13:35:07 GMT

[quote user="FredT"]prevent Bluetooth connection from device which had received the advertisement before I stop advertising[/quote]

If a device connects in this time window, then maybe you could instead try to set a flag/variable, and when this flag is set to true, you will on the BLE_GAP_EVT_CONNECTED event have a if-test that could disconnect the device if it connected ?

Snippet:

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case BLE_GAP_EVT_CONNECTED:
    if(prevent_connection)
    {
        err_code = sd_ble_gap_disconnect(m_conn_handle, BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
        APP_ERROR_CHECK(err_code);
    }
.
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RE: Prevent BLE connection

Frederic — Thu, 05 Dec 2019 14:16:57 GMT

I called nrf_sdh_disable_request() to disable the Softdevice and prevent Bluetooth connection from device which had received the advertisement before I stop advertising. Since I want to prevent Bluetooth connection as well it seems that nrf_sdh_disable_request() service this purpose.

The first issue is to prevent Bluetooth connection from device that have advertisement data.

RE: Prevent BLE connection

Sigurd — Thu, 05 Dec 2019 13:34:28 GMT

Hi,

Why did you call nrf_sdh_disable_request() ? sd_ble_gap_adv_stop() should be enough to stop the advertising.

If you are using nrf_sdh_disable_request/nrf_sdh_disable_request, you might need to call advertising_init() again.