public async Task <LED> GetLEDMatrix()
{
var ledMatrixService = _nuimo.GetGattService(Constants.Services.LEDMatrix);
var characteristic = ledMatrixService.GetCharacteristics(Constants.Characteristics.LEDMatrix)[0];
var readResult = await characteristic.ReadValueAsync();
return(LED.FromByteArrary(readResult.Value.ToArray()));
}
public async Task SetLEDMatrix(string characterMatrix, byte brightness = 0x7F, byte timeout = 0x64)
{
var ledMatrixService = _nuimo.GetGattService(Constants.Services.LEDMatrix);
var characteristic = ledMatrixService.GetCharacteristics(Constants.Characteristics.LEDMatrix)[0];
LED led = new LED(characterMatrix, brightness, timeout);
byte[] buffer = led.ToByteArrary();
var writer = new DataWriter();
writer.ByteOrder = ByteOrder.BigEndian;
writer.WriteBytes(buffer);
await characteristic.WriteValueAsync(writer.DetachBuffer());
}
public static LED FromByteArrary(byte[] buffer)
{
if (buffer.Length != 13)
{
throw new ArgumentException("The buffer is not a valid length");
}
var led = new LED();
byte[] matrix = new byte[11];
for (int i = 0; i < matrix.Length; i++)
{
matrix[i] = buffer[i];
}
led.Matrix = matrix;
led.Brightness = buffer[11];
led.Timeout = buffer[12];
return(led);
}
