本系统是基于STC单片机的光源照度控制系统，是利用照度传感器（3DU5C）检测环境亮度的变化，采用增量PID控制算法，来调节可控光源（LEDs）的亮度，以确保控制对象表面照度恒定。-This system is based on single-chip source of illumination STC is control system, using the illuminance sensor (3DU5C) test environment changes, the brightness, using deltas PID control algorithm is to adjust the control of brightness LEDs light () to ensure control object surface illumination constant