void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(14,INPUT);
  pinMode(26,OUTPUT);
  pinMode(27,INPUT);
}

void loop() {
 digitalWrite(26,HIGH);
 delay(1000);
 digitalWrite(26,LOW);

 float duration=pulseIn(14,HIGH);
 int distance=duration*0.034/2;
 Serial.println(distance);
 Serial.println("..........");
 delay(1000);

 if(distance>200){
 digitalWrite(27,HIGH);
}else{
 digitalWrite(27,LOW);
}
}