def ileri(tf, ff):
    init()
    gpio.output(17, 0)
    gpio.output(22, 0)
    ip = gpio.PWM(27, 50)
    ip2 = gpio.PWM(18, 50)
    ip.start(ff)
    ip2.start(ff)
    tf = float(tf)
    tf = (tf / motorhizi)
    time.sleep(tf)
    gpio.cleanup()
def ileri(tf, ff):
    init()
    gpio.output(17, 0)
    gpio.output(22, 0)
    ip = gpio.PWM(27, 50)
    ip2 = gpio.PWM(18, 50)
    ip.start(ff)
    ip2.start(ff)
    tf = float(tf)
    tf = (tf / motorhizi)
    time.sleep(tf)
    gpio.cleanup()