树莓派小车绕操场代码

树莓派小车绕操场的代码通常涉及硬件控制（如GPIO接口连接电机）、传感器读取（例如红外线避障或超声波测距）以及基本的程序设计。这里给出一个简化的Python示例，假设我们使用的是Raspberry Pi GPIO库和`wiringpi`模块：

import wiringpi
import time

# 设置GPIO模式
wiringpi.wiringPiSetup()

# 定义电机引脚
motor_pin_left = 17
motor_pin_right = 18

# 初始化电机
wiringpi.pinMode(motor_pin_left, wiringpi.GPIO.PWM_OUTPUT)
wiringpi.pinMode(motor_pin_right, wiringpi.GPIO.PWM_OUTPUT)

# 设定最大速度
max_speed = 90

def move_forward(speed):
    wiringpi.pwmWrite(motor_pin_left, max_speed - speed)
    wiringpi.pwmWrite(motor_pin_right, max_speed + speed)

def turn_left():
    wiringpi.pwmWrite(motor_pin_left, max_speed)
    wiringpi.pwmWrite(motor_pin_right, 0)

def turn_right():
    wiringpi.pwmWrite(motor_pin_left, 0)
    wiringpi.pwmWrite(motor_pin_right, max_speed)

def follow_path(campus_map):  # 这里只是一个简化示例，实际需要地图解析
    while True:
        for direction in campus_map:  # 假设campus_map是一个简单的列表，包含前进、左转、右转指令
            if direction == "forward":
                move_forward(60)  # 每次前进的速度可以根据情况调整
                time.sleep(1)
            elif direction == "left":
                turn_left()
                time.sleep(0.5)
            elif direction == "right":
                turn_right()
                time.sleep(0.5)
            else:
                print("未知指令")

follow_path(your_campus_plan)  # 替换为你的操场路径计划

# 关闭GPIO
wiringpi.digitalWrite(motor_pin_left, wiringpi.GPIO.LOW)
wiringpi.digitalWrite(motor_pin_right, wiringpi.GPIO.LOW)
wiringpi pinMode(motor_pin_left, wiringpi.GPIO.INPUT)
wiringpi pinMode(motor_pin_right, wiringpi.GPIO.INPUT)