本程序使用AVR系列单片机ATmega88来控制LED的各种功能，通过单按键可以实现LED灯光的关断、弱光、强光、SOS光源等效果，再关断光源的同时，电路即进入睡眠状态，有效的保证低功耗的实现。(The various functions of this program uses the AVR Series MCU ATmega88 to control LED, the single button can achieve LED lights off, weak light, light, SOS light source, and then turn off the light at the same time, the circuit to enter the sleep state, guarantee to achieve low power consumption effectively.)