__init__.py 文件源码

def on(self, power=None):
        if power is not None:
            self.power = int(power)

        if self.frequency is None:
            self.frequency = 0.5  # 2 sec

        self.p = GPIO.PWM(int(self.gpio), float(self.frequency))
        self.p.start(int(self.power))