U.ARE.U指纹采集仪日常维护方法及注意事项 1、指纹采集仪表面，应时常保持干净。 2、不可用金属或者指甲等坚硬的器件，在镜片上划伤。 3、当镜片上不慎有水滴或者油着渍时，不能用毛巾或纸巾檫拭。应该用纸巾轻压在镜片上稍微停留，等水分吸干后取走，再用透明胶带粘掉镜片上的赃物。-Of U.ARE.U routine maintenance methods and precautions fingerprint scanner, fingerprint collection ins

this is intelligent water drop, an approch for optimization

When a solar PV system is deployed for practical applications, the IV Charateristics keeps on changing with insolation and temperature. In order to receive maximum power the load must adjust itself and accordingly to track maximum power point. The

cc2530 输出雨滴传感器电平，判断有无水分存在(CC2530 outputs the level of the rain drop sensor to determine whether there is water presence or not.)