python控制gpio的一段代码抄的

控制gpio一个范例

import RPi.GPIO as GPIO  
import time  
 
channels = [16,18,22,24,26,19,21,23]  
 
def init():  
    GPIO.setmode(GPIO.BOARD)  
    for x in channels:  
        GPIO.setup(x,GPIO.OUT)  
        pass  
 
def on(i):  
    GPIO.output(channels[i], GPIO.HIGH)  
 
def off(i):  
    GPIO.output(channels[i], GPIO.LOW)  
 
def ctrl(data):  
    for i in channels:  
        GPIO.output(i, data & 0x1)  
        data = data >> 1  
    pass  
 
def test():  
    for i in xrange(512):  
        ctrl(i)  
        time.sleep(0.1)  
 
def clean():  
    GPIO.cleanup()

调用

import led
 
led.init()
led.test()
led.clean（）