#include <LiquidCrystal_I2C.h>
#include <LED.h>
#include "Relay.h"

LED led(11);
Relay light(4, false); // constructor receives (pin, isNormallyOpen) true = Normally Open, false = Normally Closed

#define LDR_PIN 2

LiquidCrystal_I2C lcd(0x27, 20, 4);

void setup() {
  led.begin(2000);
  light.begin(); // inicializes the pin
  pinMode(LDR_PIN, INPUT);
  lcd.init();
  lcd.backlight();
}

void loop() {
  led.flash(LDR_PIN, 100);
  lcd.setCursor(0, 0);
  lcd.print("Turbidez: ");
  if (digitalRead(LDR_PIN) == LOW) {
    lcd.print("Limpa!");
    light.turnOff(); //turns relay off
  } else {
    lcd.print("Suja  ");
    light.turnOn();  //turns relay on
	  bool isLightOn = light.getState(); //returns a bool, true = on, false = off
  }
  delay(100);
}