const int trigP = D2;
const int echoP = D3;
float distance;
long duration;

void setup() {
pinMode(trigP, OUTPUT);
pinMode(echoP, INPUT);
Serial.begin(115200);

}

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

  duration = pulseIn(echoP,HIGH);
  distance = duration*0.034/2;
  
  Serial.println("Distance");
  Serial.print(distance);
  Serial.print("cm");
  }