主要是关于PWM调光程序，希望可以帮助大家学习交流-PWM dimming program can help you learn exchange

PWM按键调光源代码，可以通过按键调节光的亮度可以分5个等级的亮度，并且通过本程序可以做一个小台灯。-PWM modulation source code button, you can adjust the brightness of the keys can be divided into five levels of brightness, and through this program can make a small lamp.