Arduino Based Compressor Management System

#include <Wire.h>
#include "RTClib.h"
#include <math.h>         //loads the more advanced math functions

#define Relay 4           // relay is connected to pin 4  
#define Pir   8           // Pir is connected to pin 8

RTC_DS1307 rtc;

int TIME_STATE = 0 ;    
int TEMP_STATE = 0;
int PIR_STATE  = 0;
int COMBI_STATE= 0;
int RELAY_WAIT=0;
int RELAY_STATE=0;
int Counter =0;



void setup() {

delay(10000);                                 // always wait x seconds when powering on. give the compressor time to equalise

  Serial.begin(9600);
  Wire.begin();

  rtc.begin();

  if (! rtc.isrunning())
  {
    Serial.println("RTC is NOT running!");
  }
  pinMode(Pir,INPUT);                   //Pir sensor is set as a INPUT (sensor stays high for 5 min when movment is detected)
  pinMode(Relay, OUTPUT);
  digitalWrite(Pir,LOW);
  digitalWrite(Relay,LOW);
 

}

double Thermister(int RawADC) {  //Function to perform the fancy math of the Steinhart-Hart equation
 double Temp;
 Temp = log(((10240000/RawADC) - 10000));
 Temp = 1 / (0.001129148 + (0.000234125 + (0.0000000876741 * Temp * Temp ))* Temp );
 Temp = Temp - 273.15;              // Convert Kelvin to Celsius
// Temp = (Temp * 9.0)/ 5.0 + 32.0; // Celsius to Fahrenheit - comment out this line if you need Celsius
 return Temp;

}
void loop() {

  DateTime now = rtc.now();

  Serial.print(now.year(), DEC);
    Serial.print('/');
    Serial.print(now.month(), DEC);
    Serial.print('/');
    Serial.print(now.day(), DEC);
    Serial.print(" (");
    Serial.print(now.hour(), DEC);
    Serial.print(':');
    Serial.print(now.minute(), DEC);
    Serial.print(':');
    Serial.print(now.second(), DEC);
    Serial.println();

      int val;                //Create an integer variable
  double temp;            //Variable to hold a temperature value
  val=analogRead(0);      //Read the analog port 0 and store the value in val
  temp=Thermister(val);   //Runs the fancy math on the raw analog value
  Serial.println("Temp");
  Serial.println(temp);   //Print the value to the serial port
  Serial.println("Temp_STATE");
  Serial.println(TEMP_STATE);
  Serial.println("TIME_STATE");
  Serial.println(TIME_STATE);
  Serial.println("PIR_STATE");
  Serial.println(PIR_STATE);
  Serial.println("RELAY_STATE");
  Serial.println(RELAY_STATE);
  Serial.println("RELAY_WAIT");
  Serial.println(RELAY_WAIT);
    Serial.println();
    delay(1000);
///////////////////////////////////////////////////////////////////////////////////////////////////////////
// the if statements below set TIME_STATE to 0 between 20:00-8:59 and from 9:00-19.59 to 1
    if (now.hour() == 20){
      TIME_STATE=0;
    }
      if (now.hour() == 21){
      TIME_STATE=0;
    }
        if (now.hour() == 22){
      TIME_STATE=0;
    }
        if (now.hour() == 23){
      TIME_STATE=0;
    }
        if (now.hour() == 0){
      TIME_STATE=0;
    }
        if (now.hour() == 1){
      TIME_STATE=0;
    }
        if (now.hour() == 2){
      TIME_STATE=0;
    }
        if (now.hour() == 3){
      TIME_STATE=0;
    }
        if (now.hour() == 4){
      TIME_STATE=0;
    }  
        if (now.hour() == 5){
      TIME_STATE=0;
    }
        if (now.hour() == 6){
      TIME_STATE=0;
    }
        if (now.hour() == 7){
      TIME_STATE=0;
    }
        if (now.hour() == 9){
      TIME_STATE=1;
    }
        if (now.hour() == 10){
      TIME_STATE=1;
    }
        if (now.hour() == 11){
      TIME_STATE=1;
    }
        if (now.hour() == 12){
      TIME_STATE=1;
    }
        if (now.hour() == 13){
      TIME_STATE=1;
    }
        if (now.hour() == 14){
      TIME_STATE=1;
    }
        if (now.hour() == 15){
      TIME_STATE=1;
    }
        if (now.hour() == 16){
      TIME_STATE=1;
    }
        if (now.hour() == 17){
      TIME_STATE=1;
    }
        if (now.hour() == 18){
      TIME_STATE=1;
    }
        if (now.hour() == 19){
      TIME_STATE=1;
    }

/////////////////////////////////////////////////////////////////////////////
//the statement below sets PIR_STATE to 1 when movement in the room is detected(PIR stays high for 5 minutes)
 if (digitalRead(Pir)==HIGH){
  PIR_STATE=1;
  }
 else{PIR_STATE=0;}
 
  
/////////////////////////////////////////////////////////////////////////////
//the statement below sets TEMP_STATE to 0 when the temperature exceeds 65 degrees celius
   
 if (temp > 65){
     TEMP_STATE=0;
     }
     
  
  else{TEMP_STATE=1;
  }

///////////////////////////////////////////////////////////////////////////////////  
//the statement below puts RELAY_STATE to 1 when PIR and TIME STATE are 1 

if (PIR_STATE==1 & TIME_STATE==1){
  COMBI_STATE=1;
  }
else {COMBI_STATE=0;}  

/////////////////////////////////////////////////////////////////////////////////////

if (COMBI_STATE==1){
    RELAY_STATE=1;
  }
//////////////////////////////////////////////////////////////////////////////
if (COMBI_STATE==1){
    digitalWrite(Relay,HIGH);
  }
else{digitalWrite(Relay,LOW);}

///////////////////////////////////////

while(COMBI_STATE==0 & RELAY_STATE==1){
  Counter = Counter+1;
  Serial.println("RELAY WAIT LOOP ACTIVATED");
  Serial.println("Counter");
  Serial.println(Counter);
  delay(1000);
  
  if(Counter >= 35){
    RELAY_STATE=0;
    Counter=0;
  }
  }
  
///////////////////////////////////////////////////////////////////////////////////
//the statement below starts a cool down period when TEMP_STATE is 1. It also waits at least x seconds before it can kick out of the loop




while (TEMP_STATE==0){
  digitalWrite(Relay,LOW);
  Counter = Counter+1;
  Serial.println("COOLDOWN LOOP ACTIVATED");
  
  Serial.println("Counter");
  Serial.println(Counter);
  delay(1000);
  
  if(Counter >= 35){
    TEMP_STATE=1;
    Counter=0;
  }


  
    
  
}


  
}