SERVICE HANDLE OF NUS

[Herb Gingold]

I am trying to determine the service handle of the nus example, to be able to verify that the central has turned on notifications.

I am using the sd_ble_gatts_value_get(m_conn_handle,  , &pval); function to read the attribute value and then test if for notifications enabled, but for the life of me cannot determine what it is?

I have found the characteristic add and found the p_nus->service_handle, but the reference is not valid, how do I access this handle to be able to do this test?

Herb

[jing]

you can just handle BLE_NUS_EVT_COMM_STARTED (on notification enabled) and BLE_NUS_EVT_COMM_STOPPED (on notification disabled) event type from your registered nus callback.

jing

[Herb Gingold]

Jing, thank you for your reply, can you show an example of an implementation, I cannot determine what to do at my current nordic skill level from your comment.

Herb

[jing]

\nRF5_SDK_17.0.2_d674dde\examples\ble_peripheral\ble_app_uart\main.c

static void nus_data_handler(ble_nus_evt_t * p_evt)
{
    if (p_evt->type == BLE_NUS_EVT_COMM_STARTED)
    {
        /* TX Characteristic notification enabled */
    }
    else if (p_evt->type == BLE_NUS_EVT_COMM_STOPPED)
    {
        /* TX Characteristic notification disabled */
    }

    :

jing