I can connect to the elm327 dongle, but when i send it a command i get no response. I used the class BluetoothConnectionManager.cs, that can be found here: This lib
and i used this code to send commands when it got connected:
var cmd = "AT I";
var res = await this.btManager.SendMessageAsync(cmd);
this is the Capabilities part of Package.appxmanifest:
<Capabilities>
<Capability Name="internetClient" />
<Capability Name="privateNetworkClientServer" />
<DeviceCapability Name="proximity" />
<m2:DeviceCapability Name="bluetooth.rfcomm">
<m2:Device Id="any">
<m2:Function Type="serviceId:00001101-0000-1000-8000-00805F9B34FB" />
</m2:Device>
</m2:DeviceCapability>
</Capabilities>