pwmLED

代码说明：

  亮度可调节LED灯，采用双色LED灯， LED调节亮度是通过调整通过它的PWM驱动电流大小得到的,节能灯一般是不能调整亮度的。本设计在项目中应用，绝对可以用。(Brightness can be adjusted LED lamp, using dual color LED lamp, LED adjust brightness by adjusting its PWM drive current size, energy saving lamps can not adjust brightness generally. This design is applied in the project, and it can be used absolutely.)