Not able to bond a BLE thermoter with a random passkey

RE: Not able to bond a BLE thermoter with a random passkey

Daniela_A — Wed, 29 Sep 2021 13:32:53 GMT

That´s it! It works.Thank you so very much for your help and your time :D

RE: Not able to bond a BLE thermoter with a random passkey

Amanda Hsieh — Wed, 29 Sep 2021 08:25:33 GMT

Hi,

Take a look ble_app_hrs on how to handle the current connection. You can declare a global variable to handle of the current connection as

Then,

m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle;

-Amanda

RE: Not able to bond a BLE thermoter with a random passkey

Daniela_A — Tue, 28 Sep 2021 20:52:57 GMT

By the way. I just realized that I have a warning in that line:

Could that be the problem?

Thank you

RE: Not able to bond a BLE thermoter with a random passkey

Daniela_A — Tue, 28 Sep 2021 20:44:23 GMT

Hello,

Now I understand what you are telling me.

Since I need to use the conn_handle of the ble_evt in the main, what I do is that I am declaring a global variable in the first lines of the program like this:

ble_evt_t * g_p_ble_evt;

Later, when the event triggers, I´m passing the information of the p_ble_evt to g_p_ble_evt

 case BLE_GAP_EVT_AUTH_KEY_REQUEST:
            NRF_LOG_INFO("BLE_GAP_EVT_AUTH_KEY_REQUEST");
            f_pin = true;
            g_p_ble_evt=p_ble_evt;
            break;

RE: Not able to bond a BLE thermoter with a random passkey

Amanda Hsieh — Tue, 28 Sep 2021 13:32:30 GMT

Hi,

yes, You need to check the input conn_handle of sd_ble_gap_auth_key_reply() because the error code indicates BLE_ERROR_INVALID_CONN_HANDLE.

-Amanda

RE: Not able to bond a BLE thermoter with a random passkey

Daniela_A — Tue, 28 Sep 2021 13:21:07 GMT

Yes, it is returned by the function. What do you mean by how do I set "g_p_ble_evt->evt.gap_evt.conn_handle"?

PS: Thank you for your help

RE: Not able to bond a BLE thermoter with a random passkey

Amanda Hsieh — Tue, 28 Sep 2021 12:45:58 GMT

Hi,

The error code 0x3002 corersponds to BLE_ERROR_INVALID_CONN_HANDLE. Is it returned by sd_ble_gap_auth_key_reply() function? If so, How you set this, "g_p_ble_evt->evt.gap_evt.conn_handle"?

-Amanda

RE: Not able to bond a BLE thermoter with a random passkey

Daniela_A — Fri, 24 Sep 2021 18:21:16 GMT

I tried doing that too. The problem is that when the event happens, an interruption triggers and the part of receiving the key via UART doesn´t work

RE: Not able to bond a BLE thermoter with a random passkey

Amanda Hsieh — Fri, 24 Sep 2021 13:11:07 GMT

Hi,

Try to reply to the key in the BLE_GAP_EVT_AUTH_KEY_REQUEST event instead of the main loop.

Regards,
Amanda