LED 使用 AIO-1684JD4 开发板上有 2 个 LED 灯: 控制 LED 灯状态的命令示例(需要 root 权限): # 黄灯亮 echo 1 >/sys/class/leds/DIY_LED/brightness # 黄灯灭 echo 0 >/sys/class/leds/DIY_LED/brightness # 绿灯亮 echo 1 >/sys/class/leds/WORK_LED/brightness # 绿灯灭 echo 0 >/sys/class/leds/WORK_LED/brightness