直接连接 Direct connection

[Styxxxxxxxx]

Hi,
By using the demo scene you provided,I can subscribe my sensor's character and read the poll back data successfully.So i'm wondering if i get the service id and character id in advance,can i use SubscribeCharacteristic directly to get the data?Cause I don't know how the underlying layer of this DLL works

[adabru]

Not sure. If I remember correctly I had problems doing that. But just try it out. If it doesn't work, you can do it like here:

BleWinrtDll/DebugBle/Program.cs

Lines 42 to 50 in f2635b7

	ble.Connect(deviceId,
	"{f6f04ffa-9a61-11e9-a2a3-2a2ae2dbcce4}",
	new string[] { "{f6f07c3c-9a61-11e9-a2a3-2a2ae2dbcce4}",
	"{f6f07da4-9a61-11e9-a2a3-2a2ae2dbcce4}",
	"{f6f07ed0-9a61-11e9-a2a3-2a2ae2dbcce4}" });
	for(int guard = 0; guard < 2000; guard++)
	{
	BLE.ReadPackage();

and here:

BleWinrtDll/DebugBle/BLE.cs

Lines 192 to 206 in f2635b7

	public bool Connect(string deviceId, string serviceUuid, string[] characteristicUuids)
	{
	if (isConnected)
	return false;
	Debug.Log("retrieving ble profile...");
	RetrieveProfile(deviceId, serviceUuid);
	if (GetError() != "Ok")
	throw new Exception("Connection failed: " + GetError());
	Debug.Log("subscribing to characteristics...");
	bool result = Subscribe(deviceId, serviceUuid, characteristicUuids);
	if (GetError() != "Ok" || !result)
	throw new Exception("Connection failed: " + GetError());
	isConnected = true;
	return true;
	}

BleWinrtDll/DebugBle/BLE.cs

Lines 167 to 179 in f2635b7

	public static void RetrieveProfile(string deviceId, string serviceUuid)
	{
	Impl.ScanServices(deviceId);
	Impl.Service service = new Impl.Service();
	while (Impl.PollService(out service, true) != Impl.ScanStatus.FINISHED)
	Debug.Log("service found: " + service.uuid);
	// wait some delay to prevent error
	Thread.Sleep(200);
	Impl.ScanCharacteristics(deviceId, serviceUuid);
	Impl.Characteristic c = new Impl.Characteristic();
	while (Impl.PollCharacteristic(out c, true) != Impl.ScanStatus.FINISHED)
	Debug.Log("characteristic found: " + c.uuid + ", user description: " + c.userDescription);
	}