public async void DisplayLedMatrixAsync(NuimoLedMatrix matrix, double displayInterval = 2.0, int options = 0)
{
if (ConnectionState != NuimoConnectionState.Connected)
{
return;
}
var withFadeTransition = (options & (int)NuimoLedMatrixWriteOption.WithFadeTransition) != 0;
var writeWithoutResponse = (options & (int)NuimoLedMatrixWriteOption.WithoutWriteResponse) != 0;
var byteArray = new byte[13];
matrix.GattBytes().CopyTo(byteArray, 0);
byteArray[10] |= Convert.ToByte(withFadeTransition ? 1 << 4 : 0);
byteArray[11] = Convert.ToByte(Math.Max(0, Math.Min(255, MatrixBrightness * 255)));
byteArray[12] = Convert.ToByte(Math.Max(0, Math.Min(255, displayInterval * 10)));
if (writeWithoutResponse)
{
#pragma warning disable CS4014 // Because this call is not awaited, execution of the current method continues before the call is completed
// ReSharper disable once InconsistentlySynchronizedField
_gattCharacteristicsForGuid[CharacteristicsGuids.LedMatrixCharacteristicGuid].WriteValueAsync(byteArray.AsBuffer(), GattWriteOption.WriteWithoutResponse);
#pragma warning restore CS4014
}
else
{
// ReSharper disable once InconsistentlySynchronizedField
var gattWriteResponse = await _gattCharacteristicsForGuid[CharacteristicsGuids.LedMatrixCharacteristicGuid].WriteValueAsync(byteArray.AsBuffer(), GattWriteOption.WriteWithResponse);
if (gattWriteResponse == GattCommunicationStatus.Success)
{
LedMatrixDisplayed?.Invoke(this);
}
}
}
public static byte[] GattBytes(this NuimoLedMatrix matrix)
{
return(matrix.Leds
.Chunk(8)
.Select(chunk => chunk
.Select((led, i) => Convert.ToByte(led ? 1 << i : 0))
.Aggregate((a, b) => Convert.ToByte(a + b)))
.ToArray());
}