arduino循迹小车代码l298n
时间: 2023-11-18 14:04:04 浏览: 72
是一个简单的Arduino循迹小车代码,使用L298N电机驱动板控制小车的运动:
```arduino
//定义引脚
int leftMotorForward = 5;
int leftMotorBackward = 6;
int rightMotorForward = 10;
int rightMotorBackward = 9;
int leftSensor = A0;
int rightSensor = A1;
void setup() {
//设置引脚为输出或输入
pinMode(leftMotorForward, OUTPUT);
pinMode(leftMotorBackward, OUTPUT);
pinMode(rightMotorForward, OUTPUT);
pinMode(rightMotorBackward, OUTPUT);
pinMode(leftSensor, INPUT);
pinMode(rightSensor, INPUT);
}
void loop() {
//读取左右两个传感器的值
int leftValue = analogRead(leftSensor);
int rightValue = analogRead(rightSensor);
//如果左边的传感器检测到黑线,则向左转
if (leftValue < 500) {
digitalWrite(leftMotorForward, LOW);
digitalWrite(leftMotorBackward, HIGH);
digitalWrite(rightMotorForward, HIGH);
digitalWrite(rightMotorBackward, LOW);
}
//如果右边的传感器检测到黑线,则向右转
else if (rightValue < 500) {
digitalWrite(leftMotorForward, HIGH);
digitalWrite(leftMotorBackward, LOW);
digitalWrite(rightMotorForward, LOW);
digitalWrite(rightMotorBackward, HIGH);
}
//如果两个传感器都没有检测到黑线,则直行
else {
digitalWrite(leftMotorForward, HIGH);
digitalWrite(leftMotorBackward, LOW);
digitalWrite(rightMotorForward, HIGH);
digitalWrite(rightMotorBackward, LOW);
}
}
```
这个代码使用两个红外线传感器来检测黑线,如果左边的传感器检测到黑线,则向左转;如果右边的传感器检测到黑线,则向右转;如果两个传感器都没有检测到黑线,则直行。你可以根据自己的需要进行修改和扩展。
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