led灯显示屏幕：显示屏的控制电路接收来自计算机的显示信号，驱动LED发光产生画面，并通过增加功放、音箱输出声音。 -led lights display screen: display control circuit receives the display signal from the computer, the drive LED light screen, and by increasing the amplifier,

有源音箱的设计，51单片机 两个按键增减LED灯亮的个数程序，还有同时控制音量大小的程序-Two buttons increase or decrease the number of LED lights program, as well as control the volume while the size of the program

可通过手机QQ添加CC2541为智能设备进行音乐播放、光效修改等控制(CC2541 can be added to the intelligent device for music playback, light effect modification, and so on by adding QQ to the mobile phone)