如果你是Arduino高级开发者会怎么写arduino的循迹避障四轮小车,用的是 1、arduino mega2560开发板。 2、2个l298n电机驱动模块引脚分别是控制方向左前电机6、5,控制方向左后电机11、12,控制方向右前电机,4、3,控制方向右后电机9、10,控制电机调速左前电机7,右前2,左后13,右后8。 3、hc-sr04超声波测距模块引脚 TrigPin 14,EchoPin 15。 4、5路TCRT5000红外循迹模块引脚从左到右分别是A0、A1、A2、A3、A4。 要求程序小车接电就可以实现黑线循迹和物体避障要求有详细的备注。
时间: 2024-01-13 22:02:25 浏览: 184
基于arduino的循迹避障小车
好的,我会尽力回答你的问题。首先,你需要使用Arduino Mega2560开发板作为你的控制器,同时使用2个L298N电机驱动模块来控制车辆的运动。以下是一个简单的程序框架,可以帮助你开始编写你的循迹避障四轮小车程序:
```
// 定义引脚
#define LeftFrontDirPin 6
#define LeftFrontPWM 7
#define LeftRearDirPin 11
#define LeftRearPWM 13
#define RightFrontDirPin 4
#define RightFrontPWM 2
#define RightRearDirPin 9
#define RightRearPWM 8
#define TrigPin 14
#define EchoPin 15
#define LeftSensorPin A0
#define LeftCenterSensorPin A1
#define CenterSensorPin A2
#define RightCenterSensorPin A3
#define RightSensorPin A4
// 定义全局变量
int leftSpeed = 0;
int rightSpeed = 0;
int distance = 0;
int leftSensorVal = 0;
int leftCenterSensorVal = 0;
int centerSensorVal = 0;
int rightCenterSensorVal = 0;
int rightSensorVal = 0;
// 初始化函数
void setup() {
pinMode(LeftFrontDirPin, OUTPUT);
pinMode(LeftFrontPWM, OUTPUT);
pinMode(LeftRearDirPin, OUTPUT);
pinMode(LeftRearPWM, OUTPUT);
pinMode(RightFrontDirPin, OUTPUT);
pinMode(RightFrontPWM, OUTPUT);
pinMode(RightRearDirPin, OUTPUT);
pinMode(RightRearPWM, OUTPUT);
pinMode(TrigPin, OUTPUT);
pinMode(EchoPin, INPUT);
Serial.begin(9600);
}
// 循环函数
void loop() {
// 读取超声波测距模块数据
digitalWrite(TrigPin, LOW);
delayMicroseconds(2);
digitalWrite(TrigPin, HIGH);
delayMicroseconds(10);
digitalWrite(TrigPin, LOW);
distance = pulseIn(EchoPin, HIGH) / 58;
// 读取红外循迹模块数据
leftSensorVal = analogRead(LeftSensorPin);
leftCenterSensorVal = analogRead(LeftCenterSensorPin);
centerSensorVal = analogRead(CenterSensorPin);
rightCenterSensorVal = analogRead(RightCenterSensorPin);
rightSensorVal = analogRead(RightSensorPin);
// 判断红外循迹模块数据,根据不同情况调整电机速度
if (leftSensorVal < 500 && rightSensorVal < 500) {
// 黑线在车辆正中间,直行
leftSpeed = 150;
rightSpeed = 150;
} else if (leftSensorVal < 500 && rightSensorVal >= 500) {
// 黑线在车辆左侧,向右转弯
leftSpeed = 100;
rightSpeed = 200;
} else if (leftSensorVal >= 500 && rightSensorVal < 500) {
// 黑线在车辆右侧,向左转弯
leftSpeed = 200;
rightSpeed = 100;
} else {
// 黑线在车辆左侧和右侧都没有检测到,停止
leftSpeed = 0;
rightSpeed = 0;
}
// 判断距离,如果小于10cm,则后退
if (distance < 10) {
leftSpeed = -100;
rightSpeed = -100;
}
// 控制电机速度和方向
if (leftSpeed >= 0) {
digitalWrite(LeftFrontDirPin, HIGH);
digitalWrite(LeftRearDirPin, HIGH);
analogWrite(LeftFrontPWM, leftSpeed);
analogWrite(LeftRearPWM, leftSpeed);
} else {
digitalWrite(LeftFrontDirPin, LOW);
digitalWrite(LeftRearDirPin, LOW);
analogWrite(LeftFrontPWM, abs(leftSpeed));
analogWrite(LeftRearPWM, abs(leftSpeed));
}
if (rightSpeed >= 0) {
digitalWrite(RightFrontDirPin, HIGH);
digitalWrite(RightRearDirPin, HIGH);
analogWrite(RightFrontPWM, rightSpeed);
analogWrite(RightRearPWM, rightSpeed);
} else {
digitalWrite(RightFrontDirPin, LOW);
digitalWrite(RightRearDirPin, LOW);
analogWrite(RightFrontPWM, abs(rightSpeed));
analogWrite(RightRearPWM, abs(rightSpeed));
}
// 输出调试信息
Serial.print("Distance: ");
Serial.print(distance);
Serial.print(", Left: ");
Serial.print(leftSensorVal);
Serial.print(", LeftCenter: ");
Serial.print(leftCenterSensorVal);
Serial.print(", Center: ");
Serial.print(centerSensorVal);
Serial.print(", RightCenter: ");
Serial.print(rightCenterSensorVal);
Serial.print(", Right: ");
Serial.println(rightSensorVal);
// 稍微延时一下,避免频繁读取数据
delay(50);
}
```
在上述代码中,我们使用了5个红外循迹模块来检测车辆周围的黑线位置,并使用一个超声波测距模块来检测车辆前方的距离。根据这些数据,我们可以调整车辆的速度和方向,使其能够在黑线上行驶并避开障碍物。
当然,这只是一个简单的框架,你需要根据你的实际需求和硬件连接情况进行适当调整。同时,为了确保代码的可靠性和性能,你还需要进行充分的测试和优化。
阅读全文