gpio.py 文件源码

def setup_output(self, name, pwm=False, initial=False):
        """ Set pin as output.

        :param name: Numer of the pin.
        :type name: int
        :param pwm: If value if PWM.
        :type pwm: bool
        :param initial: Initial value to set.
        :type initial: bool
        """

        self._pins[name] = {"name": name, "type": "out", "pwm": None}

        GPIO.setup(name, GPIO.OUT)
        if pwm:
            pwm = GPIO.PWM(name, 200)
            pwm.start(initial * 100.0)
            self._pins[name]["pwm"] = pwm
        else:
            self[name] = initial