Build Instructions

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  Run a Program

  #include
  LiquidCrystal lcd(12, 11, 4, 5, 6, 7); // sets the interfacing pins
  #define ECHOPIN 3
  #define TRIGPIN 2
  void setup() {
  Serial.begin(9600);
  lcd.begin(16, 2); // initializes the 16x2 LCD
  pinMode(ECHOPIN,INPUT_PULLUP);
  pinMode(TRIGPIN, OUTPUT);
  digitalWrite(ECHOPIN, HIGH);
  }
  void loop() {
  lcd.clear();
  digitalWrite(TRIGPIN, LOW);
  delayMicroseconds(2);
  digitalWrite(TRIGPIN, HIGH);
  delayMicroseconds(15);
  digitalWrite(TRIGPIN, LOW);
  int distance1 = pulseIn(ECHOPIN, HIGH, 26000);
  int distance=distance1/58;
  Serial.print(distance);
  Serial.println(" cm");
  lcd.setCursor(0,0); //sets the cursor at row 0 column 0
  lcd.print("Water Level"); // prints 16x2 LCD MODULE
  lcd.setCursor(0,1);
  lcd.print(distance);
  delay(500);
  }

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