raspberrypi.py 文件源码

def __init__(self, config):
        global DIRECTIONS, PULLUPS
        import RPi.GPIO as gpio
        self.io = gpio
        DIRECTIONS = {
            PinDirection.INPUT: gpio.IN,
            PinDirection.OUTPUT: gpio.OUT
        }

        PULLUPS = {
            PinPullup.OFF: gpio.PUD_OFF,
            PinPullup.UP: gpio.PUD_UP,
            PinPullup.DOWN: gpio.PUD_DOWN
        }

        gpio.setmode(gpio.BCM)