puenteh2

import RPi.GPIO as gpio
import time

def init():
 gpio.setmode(gpio.BCM)
 gpio.setup(17, gpio.OUT)
 gpio.setup(22, gpio.OUT)
 gpio.setup(23, gpio.OUT)
 gpio.setup(24, gpio.OUT)

def forward(sec):
 init()
 gpio.output(17, True)
 gpio.output(22, False)
 gpio.output(23, True)
 gpio.output(24, False)
 time.sleep(sec)
 gpio.cleanup()

def reverse(sec):
 init()
 gpio.output(17, False)
 gpio.output(22, True)
 gpio.output(23, False)
 gpio.output(24, True)
 time.sleep(sec)
 gpio.cleanup()

print "forward"
forward(4)
print "reverse"
reverse(2)