Arduino学习-红外感应

1、效果

2、具体代码

int LEDPin=13;
int ReadPin=2; //读取红外感应的输入结果的针脚void setup() {// put your setup code here, to run once:Serial.begin(9600);pinMode(LEDPin,OUTPUT);pinMode(ReadPin,INPUT);
}void loop() {// put your main code here, to run repeatedly:while(!digitalRead(ReadPin)){}Serial.println("Turn On");digitalWrite(LEDPin,HIGH);delay(1000);digitalWrite(LEDPin,LOW);Serial.println("Turn off");
}

3、总结

红外传感器有三个针脚，其中两边的针脚是正负，中间引脚是信号引脚。