arduino寻迹小车二驱四路红外循迹模块走迷宫代码示例

根据提供的引用内容，我们可以了解到该Arduino智能小车循迹+测速实验需要用到L293D电机驱动芯片和TT直流减速电机，以及红外循迹模块。因此，我们可以基于这些硬件组件来编写走迷宫的代码示例。

以下是一个简单的Arduino寻迹小车二驱四路红外循迹模块走迷宫代码示例：

#include <AFMotor.h>

AF_DCMotor motor1(1);
AF_DCMotor motor2(2);
AF_DCMotor motor3(3);
AF_DCMotor motor4(4);

int leftSensor1 = A0;
int leftSensor2 = A1;
int rightSensor1 = A2;
int rightSensor2 = A3;

void setup() {
  pinMode(leftSensor1, INPUT);
  pinMode(leftSensor2, INPUT);
  pinMode(rightSensor1, INPUT);
  pinMode(rightSensor2, INPUT);
}

void loop() {
  int left1 = digitalRead(leftSensor1);
  int left2 = digitalRead(leftSensor2);
  int right1 = digitalRead(rightSensor1);
  int right2 = digitalRead(rightSensor2);

  if (left1 == LOW && left2 == HIGH && right1 == HIGH && right2 == LOW) {
    motor1.setSpeed(200);
    motor1.run(FORWARD);
    motor2.setSpeed(200);
    motor2.run(BACKWARD);
    motor3.setSpeed(200);
    motor3.run(FORWARD);
    motor4.setSpeed(200);
    motor4.run(BACKWARD);
  } else if (left1 == HIGH && left2 == LOW && right1 == LOW && right2 == HIGH) {
    motor1.setSpeed(200);
    motor1.run(BACKWARD);
    motor2.setSpeed(200);
    motor2.run(FORWARD);    motor3.setSpeed(200);
    motor3.run(BACKWARD);
    motor4.setSpeed(200);
    motor4.run(FORWARD);
  } else if (left1 == LOW && left2 == HIGH && right1 == LOW && right2 == HIGH) {
    motor1.setSpeed(200);
    motor1.run(FORWARD);
    motor2.setSpeed(200);
    motor2.run(BACKWARD);
    motor3.setSpeed(200);
    motor3.run(BACKWARD);
    motor4.setSpeed(200);
    motor4.run(FORWARD);
  } else if (left1 == HIGH && left2 == LOW && right1 == HIGH && right2 == LOW) {
    motor1.setSpeed(200);
    motor1.run(BACKWARD);
    motor2.setSpeed(200);
    motor2.run(FORWARD);
    motor3.setSpeed(200);
    motor3.run(FORWARD);
    motor4.setSpeed(200);
    motor4.run(BACKWARD);
  } else {
    motor1.setSpeed(0);
    motor1.run(RELEASE);
    motor2.setSpeed(0);
    motor2.run(RELEASE);
    motor3.setSpeed(0);
    motor3.run(RELEASE);
    motor4.setSpeed(0);
    motor4.run(RELEASE);
  }
}

该代码使用了AFMotor库来控制电机的运动方向和速度，同时使用了4个红外循迹模块来检测小车的位置。根据不同的红外循迹模块的状态，小车会做出相应的运动方向和速度调整。