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5-15、风扇模块
- 风扇模块有三个引脚,分别是VCC,GND,IN,输入低电平,驱动电机转动,是风扇转动,从而起到灭火作用,20cm左右即可灭火蜡烛(The fan module has three pins, respectively, VCC, GND, IN, low input level, drive motor rotation, fan rotation, thus playing a role in fire, 20cm or so can extinguish candles)