树莓派红外避障小车python_求助树莓派避障小车 遇到 python 了。。

小白第一次上手 python ，用树莓派，红外和超声波传感器做智障小车。

编译错误：

RuntimeWarning: This channel is already in use, continuing anyway. Use GPIO.setwarnings(False) to disable warnings.

GPIO.setup(trip,GPIO.OUT)

Traceback (most recent call last):

File "xiaochetest.py", line 82, in

fwd()

TypeError: fwd() takes exactly 1 argument (0 given)

下面是小车的代码：

import RPi.GPIO as GPIO

import time

GPIO.setmode(GPIO.BOARD)

m1_fwd = 12

m1_rev = 11

m2_fwd = 13

m2_rev = 15

red_left = 07

red_right = 16

trip = 38

echo = 37

def init():

GPIO.setup(m1_fwd,GPIO.OUT)

GPIO.setup(m1_rev,GPIO.OUT)

GPIO.setup(m2_fwd,GPIO.OUT)

GPIO.setup(m2_rev,GPIO.OUT)

def stop(sleep_time):

GPIO.output(m1_fwd,False)