public async Task <double> ReadLuminosity()
{
var writeBuffer = new byte[3] {
0b00000001, 0b10010000, 0b00000000
};
var readBuffer = new byte[3] {
0b00000000, 0b00000000, 0b00000000
};
Pi.Spi.Channel0Frequency = SpiChannel.MinFrequency;
readBuffer = await Pi.Spi.Channel0.SendReceiveAsync(writeBuffer);
return(SensorHelper.ToLuminosity(readBuffer));
}