Tizen Developers

Hi,

I could get txpowerlevel value from CSR BLE board on Gear S2.

    Found device name: CSR CSC Sensor txpowerlevel: -2  . Connecting... index.html:74
    Connected to device index.html:78
    remoteDevice.uuids: 1816 index.html:82
    remoteDevice.uuids.length :1 index.html:83
    Service 00001816-0000-1000-8000-00805f9b34fb. Has 4 characteristics and 0 sub-services.

Following is a code which was used.

function onDeviceFound(device)
 {
    if (remoteDevice === null)
    {
       remoteDevice = device;
       console.log("Found device name: " + device.name + " txpowerlevel: " + device.txpowerlevel + "  . Connecting...");

       device.connect(function connectSuccess()
        {        
          console.log("Connected to device");
         
          var i = 0, service = null;
          var serviceUUIDs = remoteDevice.uuids;
          console.log("remoteDevice.uuids: "+ serviceUUIDs);
          console.log("remoteDevice.uuids.length :"+ serviceUUIDs.length);
          for (i; i < serviceUUIDs.length; i++)
          {
             service = remoteDevice.getService(serviceUUIDs[i]);
             showGATTService(service);
          }         
        
        }  , connectFail);            
    }

    adapter.stopScan();
 }

 adapter.startScan(onDeviceFound);

Regards

Hello,

I am facing similar issue. once GATT Operation done, Second time i am unable to scan any Beacon.

I am developing basic demo BLE app.  Wearable  SDK 3.0, Device: Samsung Gear S2, I have two buttons Start and  Stop. when press start button app start scanning and if found perticular like MY_BEACON_1 then gatt operation perform. GATT operation-> read service - characterstic- descriptor UUIDs, Write command and get response. once i finished this unable to scan beacon second time. Even i destroy client, deregister service on stop button. But unable to scan.  If i disconnect battery cell of beacon  then connect (add) , scanning is wors. 

Stop button some time give positive response like: client successfully destroy, Successfully deregister GATT, But not work all time

Please suggest me the right way to disconnet chip, GATT, Client.

Code (stop) button:

    
static void btn_stop_cb(void *data, Evas_Object *obj, void *event_info) {
//Disconnect : got null value;
	ret = bt_gatt_disconnect(remoteaddress);
	dlog_print(DLOG_INFO, LOG_TAG, "Remote address of FxChip %s",
			remoteaddress);
	dlog_print(DLOG_INFO, LOG_TAG, "%s",
			ret == BT_ERROR_NONE ?
					"Successfully disconnect - stop call" :
					"Fail to disconnect - stop call ");

	ret = bt_gatt_client_unset_characteristic_value_changed_cb(chr);
	if (ret == BT_ERROR_NONE)
		dlog_print(DLOG_INFO, LOG_TAG, "UNSET Characteristics result success");
	else
		dlog_print(DLOG_INFO, LOG_TAG, "UNSET Characteristics result failed");

	// Destroy the client
	if (client != NULL) {
		ret = bt_gatt_client_destroy(client);
		if (ret == BT_ERROR_NONE) {
			dlog_print(DLOG_INFO, LOG_TAG, "Successfully destroy client");

		} else
			dlog_print(DLOG_INFO, LOG_TAG, "Falied to destroy client");
		client = NULL;
	}

	//De-register the GATT connection callback
	ret = bt_gatt_unset_connection_state_changed_cb();
	if (ret != BT_ERROR_NONE) {
		dlog_print(DLOG_INFO, LOG_TAG, "Failed to deregister");
	} else
		dlog_print(DLOG_INFO, LOG_TAG, "Successfully deregister");

	//stop scanning
		ret = bt_adapter_le_stop_scan();
		if (ret != BT_ERROR_NONE) {
			dlog_print(DLOG_ERROR, LOG_TAG, "[bt_adapter_le_stop_scan] failed.");
		}
}

Thanks,

Vrajesh S

Hello, daniel kim and Andre Diermann 

 Any suggestion regarding this issue ?

what i did for disconnect beacon:

1) Stop scan, -success

2) Derigister characteristic. -success

3) Call GATT connection callback - success

4) Disconnect Client -success

5) Deregister GATT -success

6) Deintiliaze Bluetooth all operations. -success

"If i disconnect battery cell of beacon then connect (add) , scanning is work."

Ref: http://stackoverflow.com/questions/43560730/how-to-disconnect-ble-beacon-from-samsung-gear-s2-watch

Regards,

Vrajesh s

When I use the bluetooth LE adapter after the startScan() method is called, the control does not enter into the success callback and the beacon is not detected and after 10-20 seconds, the application is exited. And when I invoke stopScan() method it casues an unknown error stating 'Unable to stop scan'. Any solutions?