int trigPin=14;
  int echoPin=12;
  int motorstatus=19;
  int levelhigh=18;
  int levellow=5;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  pinMode(trigPin,OUTPUT);
  pinMode(echoPin, INPUT);
  pinMode(levelhigh, OUTPUT);
  pinMode(levellow, OUTPUT);
  pinMode(motorstatus, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  int duration,distance;
  digitalWrite(trigPin,HIGH);
  delay(1000);
  digitalWrite(trigPin, LOW);
  duration=pulseIn(echoPin,HIGH);
  distance=(duration*0.034)/2;
  if(distance<100)
  {
    Serial.println("Water level low");
    Serial.println("Powering motor on...");
    digitalWrite(levellow,HIGH);
    digitalWrite(motorstatus,HIGH);
    digitalWrite(levelhigh,LOW);
  }
  else if(distance>=400)
  {
    Serial.println("Water level high");
    Serial.println("Powering motor off...");
    digitalWrite(levellow, LOW);
    digitalWrite(motorstatus,LOW);
    digitalWrite(levelhigh,HIGH);
  }
  else if(distance<400 && distance>200)
  {
    Serial.println("Fillingg water..");
    digitalWrite(levellow,LOW);
    digitalWrite(motorstatus,HIGH);
    digitalWrite(levelhigh,LOW);
  }
  delay(10); // this speeds up the simulation

}