private void PlatformInit()
{
// android default - replaced by callback after request or change
Mtu = 20;
_gattCallback = new GattCallback(this);
_gatt = ((ABluetooth.BluetoothDevice)Device).ConnectGatt(Android.App.Application.Context, AutoConnect, _gattCallback, ABluetooth.BluetoothTransports.Le);
_gatt.RequestMtu(512);
}
