how to make a device to advertise for longer time without connecting to ble app

[ps_anu]

hi

how to make a device to advertise for longer time without connecting to ble app.. 

Thanks in advance 

[cbd]

You set the advertising time when you configure the advertising e.g.

    /* Set advertising parameters */
    ble_gap_adv_params_t adv_params;
    memset(&adv_params, 0, sizeof(adv_params));

    adv_params.primary_phy = BLE_GAP_PHY_1MBPS;
    adv_params.duration = APP_ADV_DURATION;
    adv_params.properties.type = BLE_GAP_ADV_TYPE_CONNECTABLE_SCANNABLE_UNDIRECTED;
    adv_params.p_peer_addr = NULL;
    adv_params.filter_policy = BLE_GAP_ADV_FP_ANY;
    adv_params.interval = APP_ADV_INTERVAL;

    err_code = sd_ble_gap_adv_set_configure(&m_adv_handle, &m_adv_data, &adv_params);
    APP_ERROR_CHECK(err_code);

APP_ADV_DURATION is the time, in milliseconds that your device will advertise for. You can change this to 0 if you wish the advertising to never timeout.