arduino 智能小车(蔽障、蜂鸣提醒、警示led灯，带串口输出)

#define Buzzer 2
#define InfraredSensorPin  4
#define LedDisp  13

void setup()
{
pinMode(Buzzer,OUTPUT);		//设置输出引脚
Serial.begin(9600);
Serial.println("Start!");
pinMode(InfraredSensorPin,INPUT);
pinMode(LedDisp,OUTPUT);
digitalWrite(LedDisp,LOW);
}

void loop()
{
if(digitalRead(InfraredSensorPin) == LOW)
{digitalWrite(LedDisp,HIGH);
Buzzer_Di();
}
else  digitalWrite(LedDisp,LOW);
Serial.print("Infrared Switch Status:");
Serial.println(digitalRead(InfraredSensorPin),BIN);
delay(1000);

}

void Buzzer_Di()
{
digitalWrite(Buzzer,HIGH);	//蜂鸣器响
delay(200);
digitalWrite(Buzzer,LOW);	//蜂鸣器关闭
delay(200);

}