(아두이노)초음파 센서 스케치

초음파 센서   |  아두이노

GND(-)	GND
Echo	D3
Trig	D2
Vcc	5V

 

 

 

int tr=2;

int echo=3;

void setup() 

{

  Serial.begin(9600);

  pinMode(tr,OUTPUT);

  pinMode(echo,INPUT);

}

 

void loop()

{

  digitalWrite(tr,HIGH);

  delayMicrosenonds(10);

  digitalWrite(tr,LOW);

 

int distance = pulseIn(echo,HIGH) *340/2/10000;

 

  Serial.print(distance);

  Serial.println("cm");

 delay(100);

}

 

Serial monitor