How do I know when a connection was established and how do I use the relavent struct?

RE: How do I know when a connection was established and how do I use the relavent struct?

Erik — Wed, 20 Jan 2016 13:08:28 GMT

Thank you for your answers and kind attention!

RE: How do I know when a connection was established and how do I use the relavent struct?

tesc — Wed, 20 Jan 2016 12:29:25 GMT

This approach is also used by most SDK examples.

RE: How do I know when a connection was established and how do I use the relavent struct?

Marco Russi — Wed, 20 Jan 2016 10:51:56 GMT

Thanks for reminding me this approach. ;)

RE: How do I know when a connection was established and how do I use the relavent struct?

Alex — Tue, 19 Jan 2016 13:08:51 GMT

Another option is to use connection handle

case BLE_GAP_EVT_CONNECTED:
    m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle;

    break;

case BLE_GAP_EVT_DISCONNECTED:
    m_conn_handle = BLE_CONN_HANDLE_INVALID;

RE: How do I know when a connection was established and how do I use the relavent struct?

Marco Russi — Tue, 19 Jan 2016 12:58:05 GMT

Hi, your idea should work fine. I did the same on a my application. I suggest to define the flag static volatile as below:

static volatile bool device_connected = false;

You can find it here:

github.com/.../conn_nus_p.c

switch (p_ble_evt->header.evt_id){

    case BLE_GAP_EVT_CONNECTED:
		/* device is connected now */
		device_connected = true;
        break;


    case BLE_GAP_EVT_DISCONNECTED:
		/* device is not connected now */
		device_connected = false;
        break;}