/* Water Level Detector
   Sensor: XKC-Y25-V
   The LED lights up when water is detected. LCD display sends a text warning.
   Pinout:
   Sensor --> Arduino
   Signal --> pin6
   -------LCD---------
   SDA    --> A4
   SCL    --> A5  
*/
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x3F, 16, 2);

int sensorPin = 6;    // Signal of sensor level --> pin 6
int ledPin =  13;     // The number of the LED pin
int estadoSensor=0;   // Guarda el estado del boton

void setup() {
  lcd.init();
  lcd.backlight();    //Turn on the backlight
  lcd.setCursor(0, 0);             // Go to column 0, row 0
  lcd.print("Water Level Sensor");
  pinMode(ledPin, OUTPUT);      
  pinMode(sensorPin, INPUT);
}

void loop() {
  estadoSensor = digitalRead(sensorPin);
  lcd.setCursor (0, 1);
  if (estadoSensor == HIGH) {     
    digitalWrite(ledPin, HIGH);  
    lcd.print("With water   ");
  } 
  else {
    digitalWrite(ledPin, LOW); 
    lcd.print("Without water");
  }
  delay(10);
}