dm6446 PWM 驱动可控制液晶背光显示经过多7x24小时测试！-DM6446 PWM driver to control LCD backlights, we have tested for 7x24 hours.

利用操作系统控制液晶动态显示各种字符和图片，非常适用于初学者进行试验-Dynamic control LCD display words and images, and through the touch screen function of embedded beginners is a good teaching routines

控制液晶动态显示文字和图片，并且通过触屏实现嵌入功能，是初学者很好的教学例程-Control LCD dynamic display text and images, and through touch screen to achieve embedding function is good for beginners teaching routines