#include <Wire.h>
#include <OneWire.h>
#include <DallasTemperature.h>
#include <LiquidCrystal_I2C.h>

#define ONE_WIRE_BUS  A1    //✔✔  //Signal Pull-Up resistor
#define IR_Sensor     11    //✔✔
#define Input         A0    //✔
#define Relay_1       3     //✔✔
#define Relay_2       12    //✔✔
#define Relay_3       8     //✔✔
#define Relay_4       9     //✔✔
#define proximity     A2    //✔✔
#define buttonPin     2     //✔✔  //Signal Pull-Down resistor
#define IR_col        10    //✔✔
#define IN1           4     //✔✔
#define IN2           7     //✔✔
#define enA           5     //✔✔

OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);
LiquidCrystal_I2C lcd(0x27, 16, 2);


int x = 0;
int state = 0;
int val_proximity;
int LEDState = 0;
int buttonNew;
int buttonOld = 1;
int dt = 100;
int val_col = HIGH;


void setup(){
  sensors.begin();
  lcd.init();
  lcd.init();
  lcd.backlight();
  lcd.setCursor(0, 1);
  lcd.print("turn=");
  pinMode(Input,      INPUT);
  pinMode(buttonPin,  INPUT);
  pinMode(proximity,  INPUT);
  pinMode(IR_col,     INPUT);
  pinMode(Relay_1,    OUTPUT);
  pinMode(Relay_2,    OUTPUT);
  pinMode(Relay_3,    OUTPUT);
  pinMode(Relay_4,    OUTPUT);
  pinMode(IR_Sensor,  OUTPUT);
  pinMode(IN1,        OUTPUT);
  pinMode(IN2,        OUTPUT);
  pinMode(enA,        OUTPUT);
  digitalWrite(Relay_1, 1);
  digitalWrite(Relay_2, 1);
  digitalWrite(Relay_3, 1);
  digitalWrite(Relay_4, 1);

}

void loop(){
  lcd.setCursor(0, 1);
  lcd.print("turn=");
  buttonNew = digitalRead(buttonPin);
  val_proximity = digitalRead(proximity);
  val_col = digitalRead(IR_col);
  if (val_col == LOW) {
    lcd.clear();
    delay(50);
    lcd.setCursor(0, 0);
    lcd.print("DON = 10CM");
    delay(1500);
  }
  if (val_proximity == LOW) {
    digitalWrite(Relay_1, 1);
    digitalWrite(Relay_2, 1);
    digitalWrite(Relay_3, 1);
    digitalWrite(Relay_4, 1);
    digitalWrite(IR_Sensor, 1);

  }
  if (buttonOld == 0 && buttonNew == 1) {
    if (LEDState == 0) {

      digitalWrite(IR_Sensor, 0);
      digitalWrite(Relay_1, 0);
      digitalWrite(Relay_2, 0);
      digitalWrite(Relay_3, 0);
      digitalWrite(Relay_4, 0);

      LEDState = 1;
    }
    else {
      digitalWrite(IR_Sensor, 1);
      digitalWrite(Relay_1, 1);
      digitalWrite(Relay_2, 1);
      digitalWrite(Relay_3, 1);
      digitalWrite(Relay_4, 1);
      LEDState = 0;
    }
  }
  buttonOld = buttonNew;
  delay(dt);
  analogWrite(enA, 75);
  digitalWrite(IN1, HIGH);
  digitalWrite(IN2, LOW);
  delay(100);
  lcd.setCursor(9, 1);
  lcd.print("T=");
  lcd.print(millis() / 5000);
  sensors.requestTemperatures();
  lcd.setCursor(0, 0);
  lcd.print("Temp in C =");
  lcd.println(sensors.getTempCByIndex(0));

  int counter = digitalRead(Input);
  if (state == 0)
  {
    switch (counter) {

      case 1 : state = 1; lcd.setCursor (5, 1); x = x + 1; lcd.print(x); break;
      case 0 : state = 0; break;
    }
  }

  if (counter == LOW) {
    state = 0;
  }
}