RE: Stable connection BLEnano

ugo — Thu, 02 Mar 2017 13:51:34 GMT

Thanks for reply Hung Bui! I don't know how to fix the connection interval! In the central role i have add in the the connection callback the connections gap preferences as:

void connectionCallBack(const Gap::ConnectionCallbackParams_t *params )
{
  Gap::ConnectionParams_t gap_conn_params;
  gap_conn_params.minConnectionInterval = 20;
  gap_conn_params.maxConnectionInterval = 40;
  gap_conn_params.slaveLatency = 0;
  gap_conn_params.connectionSupervisionTimeout = 600;
  ble.updateConnectionParams(params->handle, &gap_conn_params);
  ble.gattClient().launchServiceDiscovery(params->handle, ServiceCallBack, CharacteristicCallBack, service_uuid, chars_uuid1);
}

And now seems to work! Now I try to capture a sniffer trace. Thanks, U.

RE: Stable connection BLEnano

Hung Bui — Thu, 02 Mar 2017 13:45:04 GMT

What is the connection interval you have ? Could you try to check what is the return code of updateCharacteristicValue() ?

How often do you see disconnection ? Can you capture a sniffer trace ?