/// <summary>
/// Writes an LED value to the device.
/// </summary>
/// <param name="led">LED value to write.</param>
private void WriteLEDValue(APA102LED led)
{
var sendBright = (int)((31.0m * led.Brightness)) & 31;
WriteByte(Convert.ToByte(224 | sendBright));
WriteByte(Convert.ToByte(led.Blue));
WriteByte(Convert.ToByte(led.Green));
WriteByte(Convert.ToByte(led.Red));
}
/// <summary>
/// Initializes the APA102.
///
/// Caution:
/// This is required before accessing other
/// methods in this class.
/// </summary>
/// <returns>Task.</returns>
public void Initialize(GpioController gpioController)
{
Logger.Log(this, "InitializeAsync");
// Setup LEDs.
for (int i = 0; i < NUMBER_OF_LEDS; i++)
{
leds[i] = new APA102LED();
}
// Setup pins.
dataPin = gpioController.OpenPin(GPIO_NUMBER_DATA);
clockPin = gpioController.OpenPin(GPIO_NUMBER_CLOCK);
csPin = gpioController.OpenPin(8);
dataPin.SetDriveMode(GpioPinDriveMode.Output);
clockPin.SetDriveMode(GpioPinDriveMode.Output);
csPin.SetDriveMode(GpioPinDriveMode.Output);
WriteLEDValues();
}
