// Forum: https://forum.arduino.cc/t/need-assistance-with-coding/1260828
// This Wokwi project: https://wokwi.com/projects/398066380649219073


#include <Wire.h>               // deals with I2C connections
#include <LiquidCrystal_I2C.h>  //  activates the LCD I2C library

// Define pins for Valves
const int fillvalve = 22;

// Define pins for sensors
const int lowlevelsensor = 50;
const int filledlevelsensor = 52;
const int overfilledlevelsensor = 48;
int filling = 0; //varialbe to store read value
int full = 0; //variable to store read value

// OBJECT CONFIGURATIONS
LiquidCrystal_I2C  lcd(0x27, 20, 4); 

void setup() {

filling = digitalRead(lowlevelsensor);
full = digitalRead(filledlevelsensor);

  Serial.begin(9600);

  // LCD Initialization
  lcd.backlight(); 
  lcd.init();
  lcd.clear();

// Set valves as OUTPUT, sensors as INPUTS
pinMode(fillvalve, OUTPUT);
pinMode(lowlevelsensor, INPUT);
pinMode(filledlevelsensor, INPUT);


digitalWrite(fillvalve, LOW); //Initialize valve closed
}
void loop() {

   lcd.setCursor(3,0);
   lcd.print("Company Name Here");

//code for opening valve
if(filling == 0){
  digitalWrite(fillvalve, HIGH);
  lcd.setCursor(3,2);
  lcd.print("System Filling");
  
}
//code for closing valve
if(full & filling == 1) {
  digitalWrite(fillvalve, LOW);
  lcd.setCursor(3,2);
  lcd.print("System Full");
  }
   
  {
  Serial.print(digitalRead(fillvalve));
  delay(1000);
  }
}