ULTRASONIC MODULE 5V 2-450CM, 0.3CM

• Operating voltage: 5VDC
• Operating frequency: 40KHz
• 15° Field Of View
• Operating current: 2mA
• Range: 2 – 500cm
• Output: TTL level signal proportional to range

​CONNECTION

​

REFERENCE CODING

const unsigned int TRIG_PIN=13;

const unsigned int ECHO_PIN=12;
const unsigned int BAUD_RATE=9600;

void setup() {
  pinMode(TRIG_PIN, OUTPUT);
  pinMode(ECHO_PIN, INPUT);
  Serial.begin(BAUD_RATE);
}

void loop() {
  digitalWrite(TRIG_PIN, LOW);
  delayMicroseconds(2);
  digitalWrite(TRIG_PIN, HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIG_PIN, LOW);
  

 const unsigned long duration= pulseIn(ECHO_PIN, HIGH);
 int distance= duration/29/2;
 if(duration==0){
   Serial.println("Warning: no pulse from sensor");
   } 
  else{
      Serial.print("distance to nearest object:");
      Serial.println(distance);
      Serial.println(" cm");
  }
 delay(100);
 }