/*
   PIR sensor tester
*/
#include <LiquidCrystal_I2C.h>

//int ledPin = 13;                // choose the pin for the LED
//int buzzer = 12;
int buzzer = 12;
int inputPin = 13;               // choose the input pin (for PIR sensor)
int pirState = HIGH;             // we start, assuming no motion detected
int val = 0;                    // variable for reading the pin status
#define I2C_ADDR    0x27
#define LCD_COLUMNS 16
#define LCD_LINES   2

LiquidCrystal_I2C lcd(I2C_ADDR, LCD_COLUMNS, LCD_LINES);

void setup() {
 // pinMode(ledPin, OUTPUT);      // declare LED as output
  pinMode(inputPin, INPUT);     // declare sensor as input
  pinMode(buzzer, OUTPUT);
  Serial.begin(9600);
  lcd.init();
  lcd.backlight();

  // Print something


}

void loop() {
  val = digitalRead(inputPin);  // read input value
  if (val == HIGH) {            // check if the input is HIGH
 //   digitalWrite(ledPin, HIGH);  // turn LED ON
      digitalWrite(buzzer, HIGH);
    if (pirState == HIGH) {
      // we have just turned on, YOU NEED TO TEKAN BUTTON
      Serial.println("Water detected!");
      // We only want to print on the output change, not state
      pirState = LOW;

       lcd.setCursor(0,0);
      lcd.print("Water Level");
      lcd.setCursor(0,1);
      lcd.print("DETECTED");

    }
  } else {
  //  digitalWrite(ledPin, LOW); // turn LED OFF
        digitalWrite(buzzer, LOW);   
    if (pirState == LOW) {
      // we have just turned of
      Serial.println("Water not detected!");
      // We only want to print on the output change, not state
      pirState = HIGH;

      lcd.setCursor(0,0);
      lcd.print("Water Level");
      lcd.setCursor(0,1);
      lcd.print("NOT DETECTED");


    }
  }
}