int trigpin = 2;
int echopin = 3;

float distance = 0;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(trigpin , OUTPUT);
  pinMode(echopin , INPUT);



}

void loop() {
  // put your main code here, to run repeatedly:
  Serial.print(distance,1);
  Serial.println("10cm");
  delay(50);
}
  
  float getDistence() {
    float echotime;
    float calcualtedDistence;
    digitalWrite(trigpin, HIGH);
    delayMicroseconds( 10 );
    digitalWrite(trigpin, LOW);
    echotime = pulseIn(echopin, HIGH);
    calcualtedDistence = echotime / 58.26;
    return calcualtedDistence;
    
  }