STC12C5052AD做的智能充电器，冲两节1.2V充电电池，（没电池会快速闪烁，充电过程两个LED交替闪，充满绿灯常亮）充满自停（充满电为常数可在原代码里调整MAX_VALUE）。-STC12C5052AD do smart charger, washed two 1.2V rechargeable batteries (no battery will flash quickly, charging two alternately flashing LED, full of the gree