private static void SetBrightnesses() { _ledMatrix00.SetBrightness(4); if (_ledMatrix01 != null) { _ledMatrix01.SetBrightness(4); } if (_ledMatrix02 != null) { _ledMatrix02.SetBrightness(1); } if (_ledMatrix03 != null) { _ledMatrix03.SetBrightness(10); } // Adafruit -- show and tell demo _ledMatrix00.SetBrightness(1); if (_ledMatrix01 != null) { _ledMatrix01.SetBrightness(1); } }