RE: uart UUID is searchable, but what I want is to search all UUIDs To connect.

awneil — Thu, 15 Apr 2021 09:46:09 GMT

So that it looks like this:

/**@brief Function for initializing the scanning and setting the filters.
*/
static void scan_init(void)
{
    ret_code_t err_code;
    nrf_ble_scan_init_t init_scan;

    memset(&init_scan, 0, sizeof(init_scan));

    init_scan.connect_if_match = true;
    init_scan.conn_cfg_tag = APP_BLE_CONN_CFG_TAG;

    err_code = nrf_ble_scan_init(&m_scan, &init_scan, scan_evt_handler);
    APP_ERROR_CHECK(err_code);

    err_code = nrf_ble_scan_filter_set(&m_scan, SCAN_UUID_FILTER, &m_nus_uuid);
    APP_ERROR_CHECK(err_code);

    //err_code = nrf_ble_scan_filters_enable(&m_scan, NRF_BLE_SCAN_UUID_FILTER, false);
    err_code = nrf_ble_scan_filters_disable(&m_scan);
    APP_ERROR_CHECK(err_code);
}

that's where the filter is set - if you don't want any filters, then don't add any!

Documentation is available by right-clicking a function name and choosing 'Go To Declaration'

Also online:

infocenter.nordicsemi.com/.../group__nrf__ble__scan.html