四個數字分別依序對應到 [gain], [filter_up] ,[filter_down],[offset] gain = control gain of ALS output filter_up = cut-off freq of low pass filter for ALS output when increasing brightness filter_down = cut-off freq of low pass filter for ALS output when decreasing brightness offset = control offset of ALS output
調整filter_up和filter_down,就可以改變增加或減少brightness的速度。兩者的range是0~7,預設值是0(for 0.25Hz),值越大cut-off frequency越高,反應也越快。我用4Hz for increasing而2Hz for decreasing,也就是調暗時候慢一點,調亮的時候快一點,這隨個人喜好可以自行調整。