这是一个键盘驱动，是在ARM上实现的，通过按键控制LED灯-This is a keyboard driver on ARM keys to control LED lights

将linux电脑虚拟成蓝牙键盘，可以用来控制远程蓝牙设备，比如你的智能手机-this program makes your pc to be a bluetooth keyboard,you can use it to control your remote device