Using fluorescent and incandescent as light source, basic features of solar cells such as short circuit current, openvoltage, maximum output filling factor and so on were measured.
Open circuit voltage to determine the residual capacity of battery, and then adopt different methods to supplement the Germany sunshine battery charging.
开路电压判断电池的剩余容量，然后采用不同的方法对德国阳光蓄电池进行补充充电。
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The Arduino is an inexpensive, adaptable, and programmable open source microprocessor that can read data input in the form of voltage at its analog pins.