四路红外寻迹小车代码

根据提供的引用内容，我们可以了解到四路红外寻迹小车的工作原理和核心模块，下面是一个简单的四路红外寻迹小车代码示例：

import RPi.GPIO as GPIO
import time

# 定义红外传感器引脚
sensor_left = 11
sensor_middle_left = 12
sensor_middle_right = 13
sensor_right = 15

# 设置GPIO模式为BCM
GPIO.setmode(GPIO.BCM)

# 设置红外传感器引脚为输入模式
GPIO.setup(sensor_left, GPIO.IN)
GPIO.setup(sensor_middle_left, GPIO.IN)
GPIO.setup(sensor_middle_right, GPIO.IN)
GPIO.setup(sensor_right, GPIO.IN)

# 定义小车的动作函数
def move_forward():
    # 向前移动代码
    pass

def move_backward():
    # 向后移动代码
    pass

def turn_left():
    # 左转代码
    pass

def turn_right():
    # 右转代码
    pass

def stop():
    # 停止代码
    pass

# 循环检测红外传感器状态
while True:
    # 获取红外传感器状态
    left = GPIO.input(sensor_left)
    middle_left = GPIO.input(sensor_middle_left)
    middle_right = GPIO.input(sensor_middle_right)
    right = GPIO.input(sensor_right)

    # 根据红外传感器状态执行相应的动作
    if left == 0 and middle_left == 0 and middle_right == 0 and right == 0:
        move_forward()
    elif left == 0 and middle_left == 0 and middle_right == 1 and right == 0:
        turn_right()
    elif left == 0 and middle_left == 1 and middle_right == 0 and right == 0:
        turn_right()
    elif left == 1 and middle_left == 0 and middle_right == 0 and right == 0:
        turn_left()
    elif left == 0 and middle_left == 1 and middle_right == 1 and right == 0:
        move_forward()
    elif left == 0 and middle_left == 0 and middle_right == 1 and right == 1:
        move_forward()
    elif left == 1 and middle_left == 1 and middle_right == 0 and right == 0:
        move_forward()
    elif left == 0 and middle_left == 0 and middle_right == 0 and right == 1:
        turn_left()
    elif left == 1 and middle_left == 1 and middle_right == 1 and right == 1:
        stop()

    # 等待一段时间
    time.sleep(0.1)