board_config.py 文件源码

def setup():
        """ Configure the Raspberry GPIOs
        :rtype : None
        """
        GPIO.setmode(GPIO.BCM)
        # LED
        GPIO.setup(BOARD.LED, GPIO.OUT)
        GPIO.output(BOARD.LED, 0)
        # switch
        GPIO.setup(BOARD.SWITCH, GPIO.IN, pull_up_down=GPIO.PUD_DOWN) 
        # DIOx
        for gpio_pin in [BOARD.DIO0, BOARD.DIO1, BOARD.DIO2, BOARD.DIO3]:
            GPIO.setup(gpio_pin, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
        # blink 2 times to signal the board is set up
        BOARD.blink(.1, 2)